An online survey company claims their surveys take on average less than 20 minutes to complete. Before running a new ad campaign, they need data to prove that the average completion time is actually less than 20 minutes. The company randomly samples 15 surveys taken in the last week and found a sample mean of 17 minutes with a sample standard deviation of 5 minutes. What is the alternative hypothesis of this test. Be sure to include symbol and number needed to form the hypothesis. HA : µ Find the test statistic for this test. (round answer to 3 decimal places) Find the p-value for this test. (round answer to 3 decimal places)
An online survey company claims their surveys take on average less than 20 minutes to complete. Before running a new ad campaign, they need data to prove that the average completion time is actually less than 20 minutes. The company randomly samples 15 surveys taken in the last week and found a sample mean of 17 minutes with a sample standard deviation of 5 minutes. What is the alternative hypothesis of this test. Be sure to include symbol and number needed to form the hypothesis. HA : µ Find the test statistic for this test. (round answer to 3 decimal places) Find the p-value for this test. (round answer to 3 decimal places)
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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An online survey company claims their surveys take on average less than 20 minutes to complete. Before running a new ad campaign, they need data to prove that the average completion time is actually less than 20 minutes. The company randomly samples 15 surveys taken in the last week and found a sample mean of 17 minutes with a sample standard deviation of 5 minutes.
What is the alternative hypothesis of this test. Be sure to include symbol and number needed to form the hypothesis.
HA : µ
Find the test statistic for this test. (round answer to 3 decimal places)
Find the p-value for this test. (round answer to 3 decimal places)
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