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3/14 Question 4 of 14, Step 1 of 1 Correct A professor wants to estimate how many hours per week her students study. A simple random sample of 55 students had a mean of 18 hours of studying per week. Construct a 90 % confidence interval for the mean number of hours a student studies per week. Assume that the population standard deviation is known to be 2.8 hours per week. Round to two decimal places. Answer E Tables E Keypad Keyboard Shortcuts Lower Endpoint: Upper Endpoint:

3/14 Question 4 of 14, Step 1 of 1 Correct A professor wants to estimate how many hours per week her students study. A simple random sample of 55 students had a mean of 18 hours of studying per week. Construct a 90 % confidence interval for the mean number of hours a student studies per week. Assume that the population standard deviation is known to be 2.8 hours per week. Round to two decimal places. Answer E Tables E Keypad Keyboard Shortcuts Lower Endpoint: Upper Endpoint:

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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**Lesson: 8.1 Estimating Population Means** **Question 4 of 14, Step 1 of 1** A professor wants to estimate how many hours per week her students study. A simple random sample of 55 students had a mean of 18 hours of studying per week. Construct a 90% confidence interval for the mean number of hours a student studies per week. Assume that the population standard deviation is known to be 2.8 hours per week. Round to two decimal places. **Answer** - **Lower Endpoint:** [text box for answer] - **Upper Endpoint:** [text box for answer] Buttons available: - **Tables** - **Keypad** - **Keyboard Shortcuts** **Submit Answer** [Button] © 2021 Hawkes Learning
Transcribed Image Text:**Lesson: 8.1 Estimating Population Means** **Question 4 of 14, Step 1 of 1** A professor wants to estimate how many hours per week her students study. A simple random sample of 55 students had a mean of 18 hours of studying per week. Construct a 90% confidence interval for the mean number of hours a student studies per week. Assume that the population standard deviation is known to be 2.8 hours per week. Round to two decimal places. **Answer** - **Lower Endpoint:** [text box for answer] - **Upper Endpoint:** [text box for answer] Buttons available: - **Tables** - **Keypad** - **Keyboard Shortcuts** **Submit Answer** [Button] © 2021 Hawkes Learning
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