E E T CG. Lesson 8.1 Certífy Mode Questio .X X How to calculate Z-Score in Exce x 仓 A learn.hawkeslearning.com/Portal/Lesson/lesson_certify#! + Save & Exit Certify Lesson: 8.1 Estimating Population...

Extracted text: E E T CG. Lesson 8.1 Certífy Mode Questio .X X How to calculate Z-Score in Exce x 仓 A learn.hawkeslearning.com/Portal/Lesson/lesson_certify#! + Save & Exit Certify Lesson: 8.1 Estimating Population Means (.. LORETTA STONE 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: Submit Answer © 2021 Hawkes Learning