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Before the furniture store began its ad campaign, it averaged 128 customers per day. The manager is investigating if the average is larger since
Before the furniture store began its ad campaign, it averaged 128 customers per day. The manager is investigating if the average is larger since the ad came out. The data for the 15 randomly selected days since the ad campaign began is shown below: 148, 130, 143, 131, 142, 138, 132, 150, 145, 118, 160, 128, 159, 132, 113 Assuming that the distribution is normal, what can be concluded at the = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho? Select an answer H? Select an answer c. The test statistic ? v= d. The p-value = e. The p-value is ? a (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean number of customers since the ad campaign began is not significantly more than 128 at a = 0.05, so there is insufficient evidence to conclude that the population mean number of customers since the ad campaign began is more than 128. O The data suggest the populaton mean is significantly more than 128 at a = 0.05, so there is sufficient evidence to conclude that the population mean number of customers since the ad campaign began is more than 128. O The data suggest the population mean is not significantly more than 128 at a = 0.05, so there is sufficient evidence to conclude that the population mean number of customers since the ad campaign began is equal to 128. h. Interpret the p-value in the context of the study. OIf the population mean number of customers since the ad campaign began is 128 and if you
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