Completion of Treatment Yes (C,) No (C2) P(T;) Pediatric (T1) 0.085 0.276 0.361 Practice Family (T2) 0.088 0.191 0.279 ΟΒIGYN (T3) 0.143 0.217 0.360 P(C) 0.316 0.684 1
Q: Test to see if religious faith is independent of the region where one lives. For this test, specify…
A: The following cross tabulation have been provided. The row and column total have been calculated and…
Q: Decreasing the alpha level (for example from = .05 to = .01) ____. a Decreases the probability…
A: The level of significance α is the probability of type I error. So, as the alpha decreases the…
Q: Cholesterol Levels A medical researcher wishes to see if he can lower the cholesterol levels through…
A:
Q: Describe type I and type Il errors for a hypothesis test of the indicated claim. A shoe store claims…
A: The null hypothesis is the actual proportion of new customers who return to buy their next pair of…
Q: nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…
A: The following null and alternative hypotheses need to be tested: Ho: \mu = 3.3μ=3.3 Ha: \mu =\not…
Q: Iron Deficiency? Iron is essential to most life forms and to normal human physiology. It is an…
A: a. The null hypothesis is, µ=18 mg/day The recommended dietary allowance (RDA) of iron for adult…
Q: (confirmatory test) in 20,000 patients. From 1200 individuals who tested po! by the rapid test, only…
A:
Q: 童0 警 During a clinical trial, an experimental medication is administered to several patients, and…
A: C(x)=17xx2+1 a) C(2)=17(2)22+11=344+11=3415=2.267 b) x2+11 can never be zero hence C(x) exist for…
Q: 8 Q.9 Evaluate: Pia(x)dx=
A:
Q: Probability of Holmes given Watson Icy P(I)=0.7 P(H| I) P(W| I) Holmes Crash Watson Crash I 0.8 I…
A: Given, P(I)=0.7P(-I)=1-P(I)=1-0.7=0.3 First, calculate P(W)…
Q: hypothesis. g. Thus, the final conclusion is that ... O The data suggest the populaton proportion is…
A: For the given data perform z test for one proportion
Q: Describe type I and type Il errors for a hypothesis test of the indicated claim. A clothing store…
A: Basics:
Q: Statistics and Probability In a M/M/1 model, the average number of customers in the system is 6, and…
A: Given information is ; Number of customers in the system (Ls)=6 Average waiting time in the queue…
Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…
A: Givenclaim is proportion of men who own cats is larger than the proportion of women who own…
Q: Using this information, compute the margin of error for 90%, 95%, and 99%
A: Obtain the margin of error for a 90% confidence interval for the mean household income. The margin…
Q: Quasi experimental design
A: Types of experimental designs: 1. True Experiment: Samples are assigned randomly to experimental…
Q: p= proportion of students who abandon their studies due to lack of economic resources A sociologist…
A: The claim is that more than 40% of the students who abandon their studies lack economic resources.
Q: Q.10 Evaluate:
A:
Q: u1 = mean of the children's head circumferences u2 = mean of the children's head circumferences To…
A: Given that μ1 = mean of the children's head circumferences μ2 mean of the children's head…
Q: Failing to reject the null hypothesis when the research hypothesis is true is? a. Effect size b.…
A: Type I error : Reject the null hypothesis when the research hypothesis is false.
Q: Describe type I and type Il errors for a hypothesis test of the indicated claim. A furniture store…
A: We have to define type 1 error and type 2 error for the given claim.
Q: Medicine A treats Symptom Y. 200 subjects with Symptom Y volunteered to take Medicine A and 20 were…
A:
Q: using steffensen's method
A:
Q: Econometrics] The World Bank hires you to analyze the effect of the introduction of new irrigation…
A: We need to analyze a problem related to the econometrics topic. The effect of introduction of new…
Q: 4. The average score of 50 high school basketball games is less than 92 points. Null Hypothesis…
A:
Q: In a hypothesis test, if a sample has a z-score near zero, __________. A)this is strong evidence…
A: Given , Z - Score = 0
Q: National data reveals that the probability a youthful offender on probation will commit another…
A: Let p^ be the sample proportion. where, p^=xn ; x is the favourable cases and n is the sample size.…
Q: Step 1: State the hypotheses. Ho- _H. and teritical= Step 2: The level of significance and the…
A: Given: 1st semester 2nd semester 90 89 88 90 93 94 96 95 86 90 85 86 92 85 84 82…
Q: Statistical Treatment of Data (EX)(EY) EXY – (E)²) (2y² (EY)²| EX² - -
A: This is the problem to wright the correlation coefficient formula in the standard form.
Q: It is believed that at least 60% of the residents in a certain area favor an annexation suit by a…
A: The provided information is n=210x=120α=0.03p^=xn=120210=0.57 a.The null and alternative hypothesis…
Q: ata Table: Total amount of Pennium =128 Pennies Shakes# A-0 A-1 A-2 A-3 A-4 A-5 A-6 33-Trial 1 12855…
A: The trails and shakes are given in this table: Shakes 0 1 2 3 4 5 Trail 1 55 26 16 6 4 4…
Q: Gaussian elimination
A:
Q: Not successfully completing a course can have a significant effect on your semester and overall GPA…
A: Since, final grade can be either W or F so there is GPA difference between W and F.
Q: You enroll 4,000 women in 1990 and follow them for 10 years. Liver cirrhosis is your outcome; none…
A: There is enrolment of 4000 women and follow them for 10 years. We have to give answers of mentioned…
Q: Domestic corporation X owns all of the stock of domestic corporation Y, which, in turn, owns all of…
A:
Q: An average cost of the production currently in a company is 150$. The company has a plan to begin a…
A: Hypothesis Testing: Hypothesis is a procedure by which we can tests an assumption regarding a…
Q: a=0.01, z=2.79, h a:u1>u2 A is the positive critical value for this question, what is/are the…
A: We want to find the critical value and critical region
Q: Null and Alternative Hypotheses: (a) According to USDA, the average egg in a carton of 12 eggs…
A:
Q: Hypotheses and parameters As in Exercise 1, for each ofthe following situations, define the…
A: a) The parameter is population proportion of Seat-belt compliance in Massachusetts in 2008 Here, p=…
Q: A corporation is seeking fleet-insurance on its delivery vehicles. The actuarial estimation of the…
A: An efficient market is one in which all the investors are fully and equally informed. The price of…
Q: Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test.…
A: Given,n=200 , X=190H0:P=0.9 VS H1:P>0.9and α=0.05
Q: Accounting procedures allow a business to evaluate its inventory costs based on two methods: LIFO…
A:
Q: f(x)= k(3x+4), x = -1,0,1,2 Find expected value E(X) .
A:
Q: You enroll 4,000 women in 1990 and follow them for 10 years. Liver cirrhosis is your outcome; none…
A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you.…
Q: You roll a fair die repeatedly. If it shows 1, you must stop, but you may choose to stop at any…
A: Answer : Since the die is fair, the probability of getting 1,2,3,4,5 or 6 is 1/6. You greatest…
Q: An engineer is studying the effects of energy efficiency in his new innovation. There good chance…
A:
Q: Original claim: Half of cell phone owners have apple iPhones. Initial conclusion:…
A: It is an important part of statistics. It is widely used.
Q: niversity Cone andom sample of 38 women athletes at the school cate that the population proportion…
A: Let X be a random variable such that the number of athletes at the school who eventually graduated.…
Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…
A:
Q: Prediction interval for of the response variable corresponding to the value x, of the predictor…
A: Prediction interval for the response variable corresponding to the value xp of the predictor…
Step by step
Solved in 2 steps
- Gulf Coast Electronics is ready to award contracts to suppliers for providing reservoir capacitors for use in its electronic devices. For the past several years, Gulf Coast Electronics has relied on two suppliers for its reservoir capacitors: Able Controls and Lyshenko Industries. A new firm, Boston Components, inquired into the possibility of providing a portion of the reservoir capacitors needed by Gulf Coast. The quality of products provided by Lyshenko Industries has been extremely high; in fact, only 0.5% of the capacitors provided by Lyshenko had to be discarded because of quality problems. Able Controls has also had a high quality level historically, producing an average of only 1% unacceptable capacitors. Because Gulf Coast Electronics has had no experience with Boston Components, it estimated Boston’s defective rate to be 10%. Gulf Coast would like to determine how many reservoir capacitors should be ordered from each firm to obtain 75,000 acceptable-quality capacitors to use…A bank with a branch located in a commercial district of a city has the business objective of developing an improved process for serving customers during the noon-to-1pm lunch period. Management decides to first study the waiting time in the current process. The waiting time is defined as the number of minutes that elapse from when the customer enters the queue until he/she reaches the teller’s window. In addition, suppose that another branch, located in a residential area, is also concerned with improving the process of serving customers in the noon-to-1 pm lunch period and data were collected at random at these branches and recorded below; No of Customers Commercial dist branch (time) Residential area branch (time) 1 – 5 3 3 6 - 10 5 6 11 - 15 8 5 16 – 20 8 3 21 - 25 4 2 Required Which of the branches has a relatively better mean waiting time? Which shop can be surer of meeting the mean waiting time at the two branches? Assuming…jessie Lim is definitely considering buying a private apartment near her parents’ house. She is interested in a 3-room unit priced at $1.8 million now. However, the current turbulence in global economy due to the outbreak of COVID-19 makes her hesitate on whether to buy it now or one year later. Singapore property market currently is still having an upward momentum despite the current situation. There is p% chance that such momentum will continue, where p is a value between 0 and 100, and the property price will increase by 15% one year later, but there is also (100-p)% chance that the market will turn negative and drop by 20% one year later. (In the following questions, we assume the money is all considered at its present value. No other factors such as loss of opportunity are taken into consideration.) How many options are available to Jessie in this decision problem?
- A company's cash position (measured in millions of dollars) follows a generalized Wiener process growing onaverage 0.2 m per quarter with volatility of 0.1m per quarter. How high must the initial cash balance be for theprobability of a negative balance after 2.00 years not to exceed 5%?A company needs to rent space for its office employees both in the suburbs and downtown. Space is available in suburbia at a rate of $120 per square metre (per annum), while downtown space rents for $250 per square metre (per annum). In suburbia, only 30% of the space is “executive” quality, while the rest is ordinary quality. At the downtown location, 70% of the space is executive quality, while the rest is ordinary quality. The company needs a total of at least 1000 square metres of space, of which at least 510 square metres must be executive quality. No more than three quarters of the entire space is to be at either location. They wish to know how much space they should rent in each place so as to minimize the total expenditure on rent. a) Show the decision variables b) Show the objective function c) Show the constraints in standard form (i.e. suitable for using Excel’s Solver) d) Solve the linear programming problem by graphingThe 2019-2020 flu season was especially tough. By the end of the season, an estimated total of 49 million people in the United States had contracted the flu, of whom an estimated 79,000 died from the flu. Assume that the US population was 300,000,000 during the 2019-2020 flu season and that during the season, a total of 2.9 million Americans died from all causes (including the flu). Assume the population of the US remained the same at the midpoint of the season. Report mortality rates per 100,000. Be sure to express the measure in the correct format. a.What was the proportionate mortality rate from flu during the 2019-2020 flu season? b.What was the case fatality rate from flue during the 2019-2020 flu season?
- The 2019-2020 flu season was especially tough.By the end of the season, an estimated total of 49 million people in the United States had contracted the flu, of whom an estimated 79,000 died from the flu. Assume that the US population was 300,000,000 during the 2019-2020 flu season and that during the season, a total of 2.9 million Americans died from all causes (including the flu). Assume the population of the US remained the same at the midpoint of the season. Report mortality rates per 100,000. Be sure to express the measure in the correct format. c.What was the flu-related mortality rate during the 2019-2020 flu season? d.What is the all-cause mortality rate during the 2019-2020 flu season? e.In a country with an age distribution that is much younger than in the US, the proportionate mortality rate from flu in 2019 was 5%. Based on this information alone, can we determine that the risk of dying from flu in 2019 was higher in this country compared to the US? Why or why not?Y9 RMC, Inc., is a small firm that produces a variety of chemical products. In a particular production process, three raw materials are blended (mixed together) to produce two products: a fuel additive and a solvent base. Each ton of fuel additive is a mixture of 2⁄5 ton of material 1 and 3⁄5 of material 3. A ton of solvent base is a mixture of 1⁄2 ton of material 1, 1/5 ton of material 2, and 3⁄10 ton of material 3. After deducting relevant costs, the profit contribution is $40 for every ton of fuel additive produced and $30 for every ton of solvent base produced. RMC's production is constrained by a limited availability of the three raw materials. For the current production period, RMC has available the following quantities of each raw material: Raw Material Amount Available for Production Material 1 33 tons Material 2 9 tons Material 3 36 tons Assuming that RMC is interested in maximizing the total profit contribution, answer the following. (Assume F is the number of…The cashier line of a canteen can facilitate up to 60 customers an hour. Frequenters of thecanteen arrive at an average of 50 an hour. Suppose that management wants toevaluate the desirability of opening a second order-processing station so that twocustomers can be served simultaneously. Assume a single waiting line with the firstcustomer in line moving to the first available server.a. What is the average arrival time in minutes of customers?b. What is the average service time in minutes of the canteen?c. What is the probability that the canteen has a customer?d. What is the probability that the canteen does not have any customer?e. How long would the line be on average (average number of customers in thesystem)?f. How many people are waiting to be served on average?g. How long in minutes would it take the customer from lining up until he leaves thewaiting line?h. How long in minutes would a customer wait to be served on average?i. Find the probability that there are 7 customers in the…
- To test compliance with authority, a classical experiment in social psychology requires subjects to administer increasingly painful electric shocks to seemingly helpless victims who agonize in an adjacent room.* Each subject earns a score between 0 and 30, depending on the point at which the subject refuses to comply with authority—an investigator, dressed in a white lab coat, who orders the administration of increasingly intense shocks. A score of 0 signifies the subject's unwillingness to comply at the very outset, and a score of 30 signifies the subject's willingness to comply completely with the experimenter's orders. Ignore the very real ethical issues raised by this type of experiment, and assume that you want to study the effect of a “committee atmosphere” on compliance with authority. In one condition, shocks are administered only after an affirmative decision by the committee, consisting of one real subject and two associates of the investigator, who act as subjects but, in…KALI, Inc., manufactures home appliances that are marketed under a variety of trade names. However, KALI does not manufacture every component used in its products. Several components are purchased directly from suppliers. For example, one of the components that KALI purchases for use in home air conditioners is an overload protector, a device that turns off the compressor if it overheats. The compressor can be seriously damaged if the overload protector does not function properly, and therefore KALI is concerned about the quality of the overload protectors. One way to ensure quality would be to test every component received through an approach known as 100% inspection. However, to determine proper functioning of an overload protector, the device must be subjected to time-consuming and expensive tests, and KALI cannot justify testing every overload protector it receives. Instead, KALI uses an acceptance sampling plan to monitor the quality of the overload protectors. The acceptance…KALI, Inc., manufactures home appliances that are marketed under a variety of trade names. However, KALI does not manufacture every component used in its products. Several components are purchased directly from suppliers. For example, one of the components that KALI purchases for use in home air conditioners is an overload protector, a device that turns off the compressor if it overheats. The compressor can be seriously damaged if the overload protector does not function properly, and therefore KALI is concerned about the quality of the overload protectors. One way to ensure quality would be to test every component received through an approach known as 100% inspection. However, to determine proper functioning of an overload protector, the device must be subjected to time-consuming and expensive tests, and KALI cannot justify testing every overload protector it receives. Instead, KALI uses an acceptance sampling plan to monitor the quality of the overload protectors. The acceptance…