Before the furniture store began its ad campaign, it averaged 130 customers per day. The manager is investigating if the average is smaller since the ad came out. The data for the 16 randomly selected days since the ad campaign began is shown below: 109, 117, 133, 117, 134, 129, 110, 136, 110, 128, 113, 138, 125, 99, 145, 114 Assuming that the distribution is normal, what can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ? Select an answer v H1: Select an answer v c. The test statistic ? (please show your answer to 3 decimal places.)
Before the furniture store began its ad campaign, it averaged 130 customers per day. The manager is investigating if the average is smaller since the ad came out. The data for the 16 randomly selected days since the ad campaign began is shown below: 109, 117, 133, 117, 134, 129, 110, 136, 110, 128, 113, 138, 125, 99, 145, 114 Assuming that the distribution is normal, what can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ? Select an answer v H1: Select an answer v c. The test statistic ? (please show your answer to 3 decimal places.)
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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Drop down options are as follows:
a. z test or t test
b. u or p, <,>,= or not equal to
c. z or t
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