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Before the furniture store began its ad campaign, it averaged 179 customers per day. The manage 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: 187, 195, 176, 181, 150, 195, 171, 178, 182, 149, 164, 164, 168, 176, 184, 170 Assuming that the distribution is normal, what can be concluded at the a = 0.01 level of significance? a. For this study, we should use E-test for a population mean b. The test statistic t * (please show your answer to 3 decimal places.) -1.355

Before the furniture store began its ad campaign, it averaged 179 customers per day. The manage 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: 187, 195, 176, 181, 150, 195, 171, 178, 182, 149, 164, 164, 168, 176, 184, 170 Assuming that the distribution is normal, what can be concluded at the a = 0.01 level of significance? a. For this study, we should use E-test for a population mean b. The test statistic t * (please show your answer to 3 decimal places.) -1.355

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
Section10.3: Measures Of Spread
Problem 1GP
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Before the fumiture store began its ad campaign, it averaged 179 customers per day. The manage 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: 187, 195, 176, 181, 150, 195, 171, 178, 182, 149, 164, 164, 168, 176, 184, 170 Assuming that the distribution is normal, what can be concluded at the a = 0.01 level of significance? a. For this study, we should use t-test for a population mean b. The test statistic t v = -1.355 X (please show your answer to 3 decimal places.)
Transcribed Image Text:Before the fumiture store began its ad campaign, it averaged 179 customers per day. The manage 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: 187, 195, 176, 181, 150, 195, 171, 178, 182, 149, 164, 164, 168, 176, 184, 170 Assuming that the distribution is normal, what can be concluded at the a = 0.01 level of significance? a. For this study, we should use t-test for a population mean b. The test statistic t v = -1.355 X (please show your answer to 3 decimal places.)
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