8. Solve for the percentage of error given that the population is 21000 and the sample size is 500. 9. Solve for the percentage of error given that the population is 5500 and the sample size is 400. 10. Solve for the percentage of error given that the population is 970 and the sample size is 100.
Q: 8) The following gives the national percentages of adults in a given age group. Use Google Sheets or…
A: 8) Given data: Age group 18 - 29 30 - 44 45 - 59 60 or older Percentage 17 27 25 31
Q: On a 9 question multiple-choice test, where each question has 3 answers, what would be the…
A:
Q: The two main branches of statistics are qualitative statistics and quantitative statistics. sample…
A: Statistics: Statistics is a branch of science dealing with the collection, analysis, interpretation…
Q: A researcher hypothesizes that the average student spends less than 20% of their total study time…
A: Answer:- A researcher hypothesizes that the average student spends less than 20% of their total…
Q: The OLS residuals, eį, are defined as follows: a. Îi – Ôo – Ô₁ X₁. - b. yi-00-0₁ X₁. c. Yi - Yi. d.…
A: Ordinary least squares (OLS) regression is a statistical method of estimate the relationship between…
Q: The cost of a daily newspaper varies from city to city. However, the variation among prices remains…
A: Given that: Take 1 dollar = 100 cents Population standard deviation, σ=0.20 Population mean μ=1…
Q: 36. All except one of the following are examples of continuous variable. a. Time b. temperature c.…
A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…
Q: A physicist claims that the average wind speed in a certain city is 8 miles per hour. A sample of 33…
A: Here given , Sample mean = 7.9 Population standard deviation = 0.6 Sample size = 33 Significance…
Q: A distribution of values is normal with a mean of 173.3 and a standard deviation of 31.9. Find P77,…
A:
Q: The following table shows the time a student spends studying for a test in hours and the grade they…
A: Regression equation explains the relationship between the independent and dependent variable. It…
Q: INSTRUCTION: Solve for the following. Show your complete solution and emphasize your final answers.…
A:
Q: Suppose a random sample of 1012 athletes from the college are asked what their major is. The table…
A: Given data: Total count = 1012 To fill the expected frequency
Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…
A:
Q: Create a word problem with these following values: population size (n)= 25 standard deviation (s)…
A: We have given that, population size (n)= 25, standard deviation (s) = 10 and Confidence level= 95%…
Q: INSTRUCTION: Solve for the following. Show your complete solution and emphasize your final answers.…
A:
Q: provide an interpretation of the the plots presented here. what do
A: From the given plot, There are 7 party affiliations: SD, D, DL, I, RL, R and SR. And given that the…
Q: Top-Paid CEOs The data shown are the total compensation (in millions of dollars) for the 27 top-paid…
A:
Q: Consider a normal population distribution with the value of a known. USE SALT (a) What is the…
A:
Q: Qualifying Test Scores To qualify for a medical study, an applicant must have a systolic blood…
A: From the given information we find the upper nd Lower limit.
Q: Create an excel file Construct a sheet that lets the user input 20 numbers, a number X, and another…
A: Given Information: Consider the given dataset: Data Values 100 50.3 1432 5.67 11 1032…
Q: Test the null hypothesis that ros has no effect on salary against the alternative ros has a positive…
A: Statisticians conduct t-test to check the usefulness of a predictor variable.
Q: You are interested in finding a 95% confidence interval for the average commute that non-…
A: Given data is: 8 8 28 7 22 13 24 8 24 8 24 Total number of students =11 a) as sample size is…
Q: Rick operates a concession stand serving Iced Tea at the Los Angeles County Fair. Ben is the only…
A:
Q: Recreational Time A researcher wishes to see if there is a difference between the mean number of…
A: Introduction: Denote μ1, μ2 as the true mean number of hours spent weekly in recreational activities…
Q: A college would like to estimate the proportion of its students that work full-time while going to…
A: A college would like to estimate the proportion of its students that work full-time while going to…
Q: The mass center G of the 1305-kg rear-engine car is located as shown in the figure. Determine the…
A:
Q: Which class has the greatest frequency? The class with the greatest frequency is from to Which class…
A: here use given data and create grouped frequency table here no of class = 5
Q: Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain.…
A:
Q: For the following question, type the solutions to each part of the question in the space provided at…
A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…
Q: Computer for the following data and test the hypothesis Ho: p=0. Draw the scatter plot; then explain…
A: Given : Claim : ρ = 0
Q: Simplify 6². 6v. A. 6ª+v B. 6av C. 36a+v D. 36av
A: Solution-: We simplify 6a*6v=?
Q: A race director is preparing for an upcoming marathon and estimates that the mean time to finish is…
A:
Q: ry A presidential candidate plans to begin her campaign by visiting the capitals in 4 of 40 states.…
A: Given A presidential candidate plans to begin her campaign by visiting the capitals in 4 of 40…
Q: You want to see if a card dealer is favoring one suit over another. You observe the dealer pick a…
A:
Q: The ANOVA procedure is a statistical approach for determining whether or not... Group of answer…
A: The ANOVA procedure is a statistical approach for determining whether or not...
Q: Men Women 61.7 42.8 72.6 57.9 55.4 62.1 60.4 74.2 75.3 75.4 49.1 65.2
A: The given data is Men(x) Women(y) 61.7 60.4 42.8 74.2 72.6 75.3 57.9 75.4 55.4 49.1…
Q: Assume that 12 jurors are randomly selected from a population in which 77% of the people are…
A: Suppose that, the random variable X defines the number of Mexican-Americans jurors.
Q: What is the standard error for this problem, not using the pooled values
A: From the given information we find the standard error without using pooled value.
Q: What percentage of ACT composite scores are below 31? Recall the following: For the ACT, the mean…
A: The provided information is µ=21 σ=5.2 The area below 31 P(X-µσ<31-215.2)=P(Z<1.92)In the…
Q: The table shows the number of absences, x, in a class and the final exam grade, y, for seven…
A: Given n=7 x=5
Q: Meier and Frank is a chain of department stores located in the Northwest. The company has issued…
A: Given, You randomly select 100 credit cards issued three years previously. Of the 70 individuals…
Q: According to a report published by the USDA 2 years ago, a typical American consumes an average of…
A: Given: Population mean = 31.1 Sample size = 64 Sample mean = 31.65 Sample standard deviation = 2.915…
Q: Interpretation of the data. t = -3.4554, df = 6991, p-value = 0.0002763 alternative hypothesis:…
A: The provided information is t=-3.4554 df=6991 p-value=0.0002763 The alternative hypothesis is…
Q: Determine the test statistic for the hypothesis test. Round the solution to two decimal places.…
A:
Q: The table below shows a relative-frequency distribution midwestern college. The heights are…
A: The actual percentage of female students with height between 62 and 63 inches is 24/298 *100…
Q: Consider the following regression output: Ît = 0.2033 +0.656Xt se (0.0976) (0.1961) r² = 0.397…
A:
Q: A prison sentence is less than 13 years? P (X<13) =
A: Given Mu=15 Standard deviations=1.8
Q: need a solution here. Help me pleaseeee The Board of Regents of EPF University proposed a 13%…
A: Given that: Opinion Favor Oppose Neutral Faculty 45 15 10 Students 190 210 30
Q: 5. Application As a sample of a radioactive element decays into more stable elements, the amount of…
A:
Q: Use the frequency histogram to complete the following parts. (a) Determine the number of classes.…
A:
Step by step
Solved in 2 steps
- A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters of mercury (mmHg), for a sample of 10 adults. The following table presents the results. ---Predict the diastolic pressure for a patient whose systolic pressure is 145 millimeters. Round the answer to one decimal place.On May 15th , Alberto rented a car with a full tank of gas and 10,496 mi on the odometer. On May 22nd , he returned the car with 10,664 mi on the odometer. The rental agency charged Alberto $238 and needed 12 gal of gas to fill up the tank. Assume that the pickup time was later in the day than the return time so that no late fees were applied. a. Find the car's rate of gas consumption in miles per gallon to the neares gallon. b. Find the average cost in dollars per day. c. Find the average rate of travel in miles per day. a. The car's rate of consumption is (enter your response here) miles per gallon of gas. b. The agency charged Alberto $ (enter your response here) per day for the car. c. Alberto traveled (enter your response here) miles per day.8.- Solve.... by variation of parameters Note:In the image, this is the original exercise, it is in Spanish, but it is easy to understand.
- Choose a quantity to be represented by a variable, then write a mathematical expression for each. Do not solve. 1. A three-digit number whose hundreds digit is half the tens digit and the tens digit is 2 more than the units digit 2. The total interest earned after one year when Php 100 000 is invested, part of 6% annual interest rate and the remaining part at 7.5% annual interest rate 3. The distance travelled by a man driving at the rate of 60 kph 4. The total distance travelled by a boat 1 hour upstream and 30 minutes downstream in which the rate of current is 3 kph 5. The fraction of work done by a man who can finish a job in 2 hours 6. The percentage of alcohol in a mixture of 3/4 liter of pure water and x liters of 8% alcohol solution 7. The age of a woman 15 years agoA student has measured a solution using a graduated cylinder of 2.0 Litres. The uncertainty of the graduated cylinder is +/- 0.1 The % error was found to be 5% The student then decides to convert 2.0 Litres into mL which in doing so grants 2000 mL. By doing this, the uncertainty of the cylinder would be then +/- 100. The % error will also be 5% Is this correct, if so explain your reasoning.13. A 10-mL graduate weighs 42.745 g. When 5 mL of distilled water is measured in it, the combined weight of the graduate and water is 47.675 g. By definition, 5 mL of water should weigh 5 g. Calculate the weight of the measured water and express any deviation from 5 g as a percentage of error. 14. A graduate weighs 35.825 g. When 10 mL of water is measured in it, the weight of the graduate and water is 45.835 g. Calculate the weight of water, and express any deviation from 10 g as a percentage of error. 15. A pharmacist attempts to weigh 0.375 g of morphine sulfate on a balance of dubious accuracy. When checked on a highly accurate balance, the weight is found to be 0.400 g. Calculate the percentage of error in the first weighing.
- Choose a quantity to be represented by a variable, then write a mathematical expression for each. Do not solve. 10. The sum of three consecutive even integers 11. A three-digit number whose hundreds digit is twice the tens digit and the tens digit is 3 more that the units digit 12. The total peso value of 20 coins consisting of P5-coins and P10-coins 13. The total distance travelled by a boat 30 minutes upstream and 25 minutes downstream in which then rate of the current is 2 kph 14. The fraction of work done by a man who can finish a job in 3 hours and 20 minutes 15. The percentage of alcohol in a mixture formed by combining 1 liter of pure water and x liters of 40% alcohol solutionA microbiologist wants to estimate the concentration of a certain type of bacterium in a waste-water sample. She puts a 0.5 mL sample of the wastewater on a microscope slide and counts 39 bacteria. Estimate the concentration of bacteria, per mL, in this wastewater, and find the uncertainty in the estimate.4.- Determine the general solution at: Note:In the image, this is the original exercise, it is in Spanish, but it is easy to understand.
- 6. When Paul crossed the finish line of a 60 meter race, he was ahead of Robert by 10 meters and ahead of Sam by 20 meters. Suppose Robert and Sam continue to race to the finish line without changing their rates of speed. By how many meters will Robert beat Sam?Show how you reached the final answer An ectopic pregnancy is twice as likely if a woman smokes cigarettes. If 25%of women of childbearing age are smokers, what fraction of ectopic pregnanciesoccur to smokers?How long will it take people searching for a parking space to realize that they will have to walk a bit to get to the stores? An experiment was set up on a crowded day at a mall. Parking spots close to the stores were filled but on the outskirts of the lot, there were plenty of open spots. When random drivers entered the lot, they were timed as to the amount of time before they realized that they had to park far away from the stores. 55 men took an average of 195 seconds with a standard deviation of 27 seconds. 83 women took an average of 176 seconds with a standard deviation of 43 seconds. Test the premise at the 5% level that men and women will drive around different amount of times before they realize they have to park far away from the stores. What type of error (type 1 or type 2) could you have committed? Explain it in the context of the problem.
