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6. How long does it take to commute from home to work? It depends on several factors including route, traffic, and time of departure. The data below are approximately normally distributed results (in minutes) from a random sample of 8 trips. 27 38 30 42 24 37 30 39 a. Explain how you determined your data was normally distributed. b. Using technology, determine the sample mean and sample standard deviation for this data. Round your answers to three decimal places. c. Use these data to create a 95% confidence interval for the population mean time of the commute. d. Interpret your interval in the context of the problem.

6. How long does it take to commute from home to work? It depends on several factors including route, traffic, and time of departure. The data below are approximately normally distributed results (in minutes) from a random sample of 8 trips. 27 38 30 42 24 37 30 39 a. Explain how you determined your data was normally distributed. b. Using technology, determine the sample mean and sample standard deviation for this data. Round your answers to three decimal places. c. Use these data to create a 95% confidence interval for the population mean time of the commute. d. Interpret your interval in the context of the problem.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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question 6 a-c
b. Express your conclusion using a complete sentence or sentences. T-Distribution Intervals 5. Confidence intervals are designed to predict where the population mean will fall. What is the reason that we need two different distributions (Z and T) for this process? 6. How long does it take to commute from home to work? It depends on several factors including route, traffic, and time of departure. The data below are approximately normally distributed results (in minutes) from a random sample of 8 trips. 27 38 30 42 24 37 30 39 a. Explain how you determined your data was normally distributed. b. Using technology, determine the sample mean and sample standard deviation for this data. Round your answers to three decimal places. c. Use these data to create a 95% confidence interval for the population mean time of the commute. d. Interpret your interval in the context of the problem. 7. The fuel economy sticker on a new SUV's window sticker indicates the owner can expect W N 25 MacBook Air
Transcribed Image Text:b. Express your conclusion using a complete sentence or sentences. T-Distribution Intervals 5. Confidence intervals are designed to predict where the population mean will fall. What is the reason that we need two different distributions (Z and T) for this process? 6. How long does it take to commute from home to work? It depends on several factors including route, traffic, and time of departure. The data below are approximately normally distributed results (in minutes) from a random sample of 8 trips. 27 38 30 42 24 37 30 39 a. Explain how you determined your data was normally distributed. b. Using technology, determine the sample mean and sample standard deviation for this data. Round your answers to three decimal places. c. Use these data to create a 95% confidence interval for the population mean time of the commute. d. Interpret your interval in the context of the problem. 7. The fuel economy sticker on a new SUV's window sticker indicates the owner can expect W N 25 MacBook Air
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