In a random sample of eleven people, the mean driving distance to work was 24.2 miles and the standard deviationwas 4.8 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error andconstruct a 99% confidence interval for the population mean p.Identify the margin of error.TOmiles(Round to one decimal place as needed.)Construct a 99% confidence interval for the population mean.(Round to one decimal place as needed.)mimm 11) Show supporting calculations and WRITE A VALID CONCLUDING STATEMENT for thisconfidence interval.

Suppose µ is the population mean driving distance to work.

In a random sample of eleven people, the mean driving distance to work was 24.2 miles and the standard deviation was 4.8 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean μ. Identify the margin of error. ***** miles (Round to one decimal place as needed.) Construct a 99% confidence interval for the population mean. (Round to one decimal place as needed.)

In a random sample of eleven people, the mean driving distance to work was 24.2 miles and the standard deviation was 4.8 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean μ. Identify the margin of error. ***** miles (Round to one decimal place as needed.) Construct a 99% confidence interval for the population mean. (Round to one decimal place as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Assume that the population has a normal distribution. Thirty randomly selected students took the calculus final. If the sample mean was 76 and the standard deviation was 7.7, construct a 99% confidence interval for the mean score of all students.
The E&M 200 students took the exam, and the distribution of this data was bell- shaped. The average score was 68 and its standard deviation was 15. Using the empirical rule, 95% of the were between and If you scored 83 on the exam, what percentile are you in from the top? a. b.
A population has a mean μ=79and a standard deviation σ=14. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=49. (Simplify your answer.)
A population has a mean μ=88 and a standard deviation σ=28. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=49. μx= (Simplify your answer.)
The following information is slightly different for each student but very close to the actual real data. Assume the number of years in prison before being exonerated is normally distributed for both white and black males. The average amount of time Black males are in prison before being exonerated is 13.7 years with a population standard deviation of 9.8 years. The average amount of time White male are in prison before being exonerated is 9.2 years with a population standard deviation of 8.6. Give all answers to at least 2 decimal places.a) If a Black male is at the 70th percentile for years in prison before being exonerated, find the time the person has been in prison. years
A sample of 19 Math SAT scores for women was collected. The mean score for the sample was 496 and the sample standard deviation was 115. Find the 95% confidence interval for the population mean µ. Assume the population has a normal distribution. Confidence Interval: ( Enter numbers correct to one unit.
You are given the smaple mean and the population m standard deviation. Use this info to construct the 90% and 95% confidence intervals for the population mean. Interpert the results and compare the widths of the confidence intervals. A random sample of 50 home theater systems has a mean price of $145. Assume the population standard deviation is $17.30
Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
Please answer within 30min thanks.
A statistics class is estimating the mean height of all female students at their college. They collect a random sample of 42 female students and measure their heights. The mean of the sample is 65.3 inches and the sample standard deviation is 5.4 inches. Find the 90% confidence interval for the mean height of all female students in their school? Assume that the distribution of individual female heights at this school is approximately normal. 1. The t value is 1.3025 2. The standard error has a value of -- 3. The margin of error has a value of 4. Find the 90% confidence interval for the mean height of all female students in their school
A linear regression model was fit to a set of data containing 18 observations. The computer output of the regression analysis is shown in the table. Term CoefCoef SE CoefSE Coef TT Constant 12.00 5.43 2.210 xx 0.694 0.241 2.880 Assume the conditions for regression are met. Which of the following defines the margin of error when a 95 percent confidence interval for the slope of the least-squares regression line is calculated? (1.75)(0.241) A (1.75)(0.694) B (1.96)(0.241) C (2.12)(0.241)) D (2.12)(0.694) E
Use the following information to answer the next four questions. A manager of a fast-food chain wants to analyze the length of time a vehicle spends at the drive-through window waiting for an order. According to records obtained from the chain, the population mean time spent waiting at the window was 236.5 seconds with a population standard deviation of 34.8 seconds. It is known that the distribution of time waiting at the window is extremely right-skewed. The waiting time was recorded for a random sample of 21 vehicles. For the random sample obtained, the sample mean waiting time was found to be 254.6 seconds with a sample standard deviation of 23.1 seconds. In this example, for the numerical values 236.5 and 254.6 O a. 236.5 is a parameter, 254.6 is a statistic O b. Both are parameters O C. Both are statistics O d. 236.5 is a statistic, 254.6 is a parameter