The Shareholders Research Centre of America has conducted recently a research-study on price behaviour of three leading industrial shares, A, B and C for the period 2012 to 2017. The results are published in the Quarterly Journal : Share Average Price Standard Deviation Current Selling Price A 18.2 5,4 36 22.5 4.5 34.75 24 39 (a) Which share, in your opinion, appear to be more stable in value? (b) If you are the holder of all the three shares, which one would you like to dispose of at present, and why?
Q: Complete a table showing the frequencies with which words of different numbers of letters occur in t...
A:
Q: Suppose u=(1,2...19,20) and the sets A, B & C are contained in U and are given by A=(2,6,8,9, 10, 11...
A: Given that u=(1,2...19,20) and the sets A, B & C are contained in U and are given by A=(2,6,8,9...
Q: When taking a 16 question multiple choice test, where each question has 3 possible answers, it would...
A: Here given : 16 multiple choice test where each question has 3 possible answers. It would be unusual...
Q: Here is a timeplot of each monthly load factor for domestic flights for 2002 to 2017 along with a lo...
A: Given that, the time plot of each monthly load factor for domestic fights for 2002 to 2017. Time plo...
Q: Baseball feams in league A play their games with the designated hitter rule, meaning that pitchers d...
A: Given: League A League B 5.1 4.83 5 4.31 4.75 4.28 4.65 4.25 4.65 4.19 4.47 4.06 4...
Q: what is the probability the he or she will answer correctly (a) at least 6 problems?
A:
Q: In a random sample of six people, the mean driving distance to work was 23.2 miles and the standard...
A: We have given that Sample size n =6 Sample mean = 23.2 Standard deviation =6.4
Q: A student in the team suggested the following sampling procedure: “We target to interview 40 student...
A: b) The name of this sampling method used in this experiment is Random Sampling Technique. c) The fix...
Q: From the following data construct simple average of relatives quantity index number in 1986 with 198...
A: Index numbers are statistical devices to measure the relative changes in the level of phenomenon wit...
Q: Incomplete information obtained from a partly destroyed record on cost of living index is given belo...
A:
Q: The number of pieces of mail received daily at the school office is normally distributed with mean ?...
A:
Q: Q. 12. From the following data construct quantity index number using weighted average of relative me...
A:
Q: B. Find the variance and standard deviation of each probability distributions. You may use the space...
A: From the provided information, 1) The probability distribution table is as follow: X 0 1 2...
Q: In a sample of 240 workers, in a factory the mean and standard deviation of wages were $ 113.50 and ...
A:
Q: According to the graph and percentage, in which rating category are the most games sold?
A: The graph shows the relative frequency of the video games sold and pie chart shows the percentage of...
Q: A workshop produces 2,000 units per day. The average weight of units is 130 kg with a S.D.of 10 Assu...
A:
Q: Assume that 12 jurors are randomly selected from a population in which 75% of the people are Mexican...
A: The probability distribution of number of Mexican-Americans (X) when 12 juror are selected from the ...
Q: Consider a Standard Normal Distribution. What characteristics are true? Select all that apply. The m...
A:
Q: The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5 respectively . If an...
A:
Q: The average wages paid to all workers in a factory was $. 5000. The average wages paid to male and f...
A: Given that Average of all workers=AA=5000 Average of male workers=AM=5200 Average of female workers...
Q: P(x) .. Number of Goals Scored Number of Games (X) 1 7 B 3 3 3 1 E 5 1 0.05 Complete this table by f...
A: Given : N=20 Number of goals scored number of games 0 5 1 7 2 3 3 3 4 1 5 1
Q: Suppose you have the following information on whether households have a landline phone or not, broke...
A: Given data Sample size, n=500 Community A Community B Age of Household Head <35 35+...
Q: The area head of GLOBE Broadband claims that more than 75 percent of his customers in Metro Manila...
A:
Q: The following data give the numbers of orders received for a sample of 30 items at the Time-saver Ma...
A: The median for the dataset is the data point which divides the data set in two equal halves. It lies...
Q: At a certain university in Western Canada, 44% of all 1st-year students are registered in an introdu...
A:
Q: In a survey, 23 people were asked how much they spent on their child's last birthday gift. The resul...
A: We have given that Sample size n =23 Sample mean =42 Standard deviation =8
Q: If X is a Poisson variable such that P(X = 2) = 9P(X = 4) +90 P(X = 6), %3D %3D %3D find the mean an...
A: Both the above given questions are same I am giving Answer one of them.
Q: Consider Example A of Section 7.2 in your Rice textbook. The population consists of N = 393 short-st...
A: Given that, N=393 p=0.654 n=25 According to the central limit theorem the sampl...
Q: Create a relative frequency distribution and round the answers to two decimal places. Relative Respo...
A:
Q: 3. Someone claims that a one year increase in the average age of birth mothers is associated with an...
A: Given that, Someone claims that a one year increase in the average age of birth mothers is associate...
Q: price index number in 1990 with 1980 as base year using simple From the following data relating to s...
A: Given data relating to six commodities to prepare price index number in 1990 takin 1980 as abase ye...
Q: Before an increase in excise duty on tea 400 people out of a sample of 500 persons were found to be ...
A:
Q: Find Karl Pearson's coefficient of correlation from following series of marks secured by 10 students...
A: Data given Marks in economics (X) 45,70,65,30,90,40,50,75,85,60 Marks in quantitative techniques (...
Q: The Northwoods Outdoor Company is a catalog sales operation that specializes in outdoor recreational...
A: Seasonal forecast for quarter I = total of quarter i demand/overall total demand = Di/ ΣD Quar...
Q: The following data give the numbers of orders received for a sample of 30 items at the Time-saver Ma...
A: Given that - The following data give the numbers of orders received for a sample of 30 items at the ...
Q: The following table shows the time students from a colllege took to complete a marathon. Time (minu...
A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a...
Q: P(X 1) = P(2 1) =
A: Let X be the Discrete random variable having probability mass function is, fx(x) = (8/7)*(1/2)^x , ...
Q: ppose the ndustry Cldllmec aduit Collee pei day. To lest this Clam, Jults was Selecled, anu theil av...
A: Given that Mean ( mu ) = 1.8 , s.d = 0.5 , x bar = 1.85 ,n = 50 Find Hypotheses z-test statistic =...
Q: EXAMPLE 5a A police department in a small city consists of 10 officers. If the department policy is ...
A: Given Data No. of officers in a small city police department = 10 5 patrolling the streets 2 working...
Q: The meat department at a local supermarket specifically prepares its "1-pound" packages of ground be...
A:
Q: From the following given sets of observations find the coefficient of correlations: (a) XY (b) 69 85...
A:
Q: taking a statistics class and a biology class. Suppose her probabilities of getting A’s are: P(grad...
A: Given: P(A in statistics) = 0.709 P(A in biology) = 0.766 P(A in statistics and a grade of A in biol...
Q: A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce...
A: Given that ; Population mean = 25 minutes Sample mean = 22.4 minutes Sample standard deviation = 6 m...
Q: reject H0 only in the upper tail, what is the critical value of the t-test statistic with 31 degre...
A:
Q: Identify if this is a rate, ratio, or a proportion: Numerator: Number of women in NCR who died from ...
A: Given Numerator: No. of women in NCR who died from breast cancer in 2015 Denominator: No. of women i...
Q: nts to test that claim that, on average, her students average mark is 85. She pulls the records of 1...
A: Given: n = 100 μ=85σ=15x¯=75.40 It is two tailed test.
Q: The following table gives the distribution of items of production and also tne relatively defective ...
A:
Q: Calculate the coefficient of correlation between x and y. 4 6 8. 5 9 13 17
A:
Q: According to a money report by a government institution, 18-to-20-year-old college students have an ...
A: Given that n=40 X̄=546 S=67.25 μ=569
Q: P(X≤1/8)= ? P(X>5/6)= ? P(0.14≤X≤0.46)= ?
A:
Step by step
Solved in 3 steps with 3 images
- Recently, the Shine research clinic published a report stating that the regular application of a very popular sunscreen lotion NoHelios might cause some forms of skin cancer. The manufacturer of NoHelios issued an energetic counterstatement asserting that the Shine clinic's conclusions were statistically inconsistent. Wellbeing pharmacy chain has been selling NoHelios lotion for a long time. The market research department of Wellbeing wants to see what is currently happening with NoHelios lotion demand. The members of a random sample of customers were asked about their willingness to use NoHelios before and after the publication of Shine clinic's report. The answers were provided in form of a score from 0 to 10 (higher score means more willingness). Results for five customers are shown in the following table. The "before" score is matched to the "after" score, and the difference should be calculated. Suppose that it is known that such differences have approximately bell-shaped…Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the previous six months, in a sample of 115 new car buyers, 46 have traded in their old car. To determine (at the 10% level of significance) whether the proportion of new car buyers that trade in their old car has this is  statistically significantly decreased, what can you conclude concerning the null hypothesis? A) reject the null hypothesis Or B) fail to reject the null hypothesisIn previous years, 46% of candidates taking a Business Analytics exam have passed and have therefore been exempt from one prerequisite course. Resources made available such as tutoring and library prep books have improved the passing rates of candidates. In a sample of 300 recent applicants, 150 passed the exam. At the 0.01 level of significance, can we conclude that the proportion of candidates passing the exam has increased? Determine and interpret the p value for the test.
- In a clinical trial, 17 out of 900 patients taking a prescription drug complaint of flu like symptoms. Suppose that it is known that 1.3% of the patients taking competing drugs complain of flu like symptoms. Is there sufficient evidence to conclude that more than 1.3% of the drugs user experience food like symptoms as a side effect at the 0.01 level of significance? what are the normal and alternative hypothesis?The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. Conduct a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population. find the p valueIn August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates that lenders give homeowners who fall behind on their mortgage an extra five months to become current before beginning foreclosure proceedings. Policymakers claimed that the policy would result in a higher proportion of delinquent borrowers becoming current on their mortgages. To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure in the time period surrounding the enactment of this law. Of the 100 who fell behind just before the law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just after the law was enacted, 48 were able to avoid foreclosure. Let p1 and p2 represent the proportion of delinquent borrowers who avoid foreclosure just before and just after the right-to-cure law is enacted, respectively. Assuming α = 0.10, does the evidence support the policymakers’ claim?
- In August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates that lenders give homeowners who fall behind on their mortgage an extra five months to become current before beginning foreclosure proceedings. Policymakers claimed that the policy would result in a higher proportion of delinquent borrowers becoming current on their mortgages. To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure in the time period surrounding the enactment of this law. Of the 100 who fell behind just before the law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just after the law was enacted, 48 were able to avoid foreclosure. Let p1 and p2 represent the proportion of delinquent borrowers who avoid foreclosure just before and just after the right-to-cure law is enacted, respectively. Which of the following is the appropriate p-value to verify the claim?In August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates that lenders give homeowners who fall behind on their mortgage an extra five months to become current before beginning foreclosure proceedings. Policymakers claimed that the policy would result in a higher proportion of delinquent borrowers becoming current on their mortgages. To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure in the time period surrounding the enactment of this law. Of the 100 who fell behind just before the law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just after the law was enacted, 48 were able to avoid foreclosure. Let p1 and p2 represent the proportion of delinquent borrowers who avoid foreclosure just before and just after the right-to-cure law is enacted, respectively. Which of the following is the correct competing hypotheses that will test the policymakers' claim?In August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates that lenders give homeowners who fall behind on their mortgage an extra five months to become current before beginning foreclosure proceedings. Policymakers claimed that the policy would result in a higher proportion of delinquent borrowers becoming current on their mortgages. To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure in the time period surrounding the enactment of this law. Of the 100 who fell behind just before the law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just after the law was enacted, 48 were able to avoid foreclosure. Let p1 and p2 represent the proportion of delinquent borrowers who avoid foreclosure just before and just after the right-to-cure law is enacted, respectively. Which of the following is the appropriate test statistic value to analyze the claim at the 10% significance level?
- In August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates that lenders give homeowners who fall behind on their mortgage an extra five months to become current before beginning foreclosure proceedings. Policymakers claimed that the policy would result in a higher proportion of delinquent borrowers becoming current on their mortgages. To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure in the time period surrounding the enactment of this law. Of the 100 who fell behind just before the law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just after the law was enacted, 48 were able to avoid foreclosure. Let p1 and p2 represent the proportion of delinquent borrowers who avoid foreclosure just before and just after the right-to-cure law is enacted, respectively. Which of the following is the correct competing hypotheses that will test the policymakers’ claim? Multiple Choice H0: p1 – p2 ≥ 0,…In August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates that lenders give homeowners who fall behind on their mortgage an extra five months to become current before beginning foreclosure proceedings. Policymakers claimed that the policy would result in a higher proportion of delinquent borrowers becoming current on their mortgages. To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure in the time period surrounding the enactment of this law. Of the 100 who fell behind just before the law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just after the law was enacted, 48 were able to avoid foreclosure. Let p1 and p2 represent the proportion of delinquent borrowers who avoid foreclosure just before and just after the right-to-cure law is enacted, respectively. Which of the following is the appropriate test statistic value to analyze the claim at the 10% significance level? Multiple Choice t243…In August 2010, Massachusetts enacted a 150-day right-to-cure period that mandates that lenders give homeowners who fall behind on their mortgage an extra five months to become current before beginning foreclosure proceedings. Policymakers claimed that the policy would result in a higher proportion of delinquent borrowers becoming current on their mortgages. To test this claim, researchers took a sample of 244 homeowners in danger of foreclosure in the time period surrounding the enactment of this law. Of the 100 who fell behind just before the law was enacted, 30 were able to avoid foreclosure, and of 144 who fell behind just after the law was enacted, 48 were able to avoid foreclosure. Let p1 and p2 represent the proportion of delinquent borrowers who avoid foreclosure just before and just after the right-to-cure law is enacted, respectively. Which of the following is the appropriate test statistic value to analyze the claim at the 10% significance level? A)t243= −0.549 B)t243=…