Before the furniture store began its ad campaign, it averaged 213 customers per day. The manager is investigating if the average has changed since the ad came out. The data for the 12 randomly selected days since the ad campaign began is shown below: 197, 211, 228, 226, 188, 216, 183, 204, 219, 203, 206, 196 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 t-test for a population mean b. The null and alternative hypotheses would be: Ho: ?v Select an answer H1: ?v Select an answer♥ c. The test statistic ?v |(please show your answer to 3 decimal places.)

Question

Thank you so much! 

Before the furniture store began its ad campaign, it averaged 213 customers per day. The manager is
investigating if the average has changed since the ad came out. The data for the 12 randomly selected days
since the ad campaign began is shown below:
197, 211, 228, 226, 188, 216, 183, 204, 219, 203, 206, 196
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 t-test for a population mean
b. The null and alternative hypotheses would be:
Ho: ?v Select an answer
H1: ?v Select an answer♥
c. The test statistic ?v
|(please show your answer to 3 decimal places.)
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Transcribed Image Text

Before the furniture store began its ad campaign, it averaged 213 customers per day. The manager is investigating if the average has changed since the ad came out. The data for the 12 randomly selected days since the ad campaign began is shown below: 197, 211, 228, 226, 188, 216, 183, 204, 219, 203, 206, 196 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 t-test for a population mean b. The null and alternative hypotheses would be: Ho: ?v Select an answer H1: ?v Select an answer♥ c. The test statistic ?v |(please show your answer to 3 decimal places.)

Expand

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