Before the furniture store began its ad campaign, it averaged 123 customers per day. The manager is investigating if the average is larger since the ad came out. The data for the 11 randomly selected days since the ad campaign began is shown below: 110, 154, 108, 112, 151, 146, 144, 130, 138, 129, 142 Assuming that the distribution is normal, what can be concluded at the a = 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 Select an answer c. The test statistic (please show your answer to 3 decimal places.)
Before the furniture store began its ad campaign, it averaged 123 customers per day. The manager is investigating if the average is larger since the ad came out. The data for the 11 randomly selected days since the ad campaign began is shown below: 110, 154, 108, 112, 151, 146, 144, 130, 138, 129, 142 Assuming that the distribution is normal, what can be concluded at the a = 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 Select an answer c. The test statistic (please show your answer to 3 decimal places.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:that the population mean number of customers since the ad campaign began is more than 123.
h. Interpret the p-value in the context of the study.
Olf the population mean number of customers since the ad campaign began is 123 and if you
collect data for another 11 days since the ad campaign began then there would be a
3.62722935% chance that the sample mean for these 11 days would be greater than 133.1.
O There is a 3.62722935% chance of a Type I error.
O There is a 3.62722935% chance that the population mean number of customers since the ad
campaign began is greater than 123.
O lf the population mean number of customers since the ad campaign began is 123 and if you
collect data for another 11 days since the ad campaign began then there would be a
3.62722935% chance that the population mean number of customers since the ad campaign
began would be greater than 123.
i. Interpret the level of significance in the context of the study.
O There is a 5% chance that there will be no customers since everyone shops online nowadays.
Olf the population mean number of customers since the ad campaign began is more than 123
and if you collect data for another 11 days since the ad campaign began, then there would be a
5% chance that we would end up falsely concuding that the population mean number of
customers since the ad campaign is equal to 123.
Olf the population mean number of customers since the ad campaign began is 123 and if you
collect data for another 11 days since the ad campaign began, then there would be a 5%
chance that we would end up falsely concuding that the population mean number of customers
since the ad campaign began is more than 123.
O There is a 5% chance that the population mean number of customers since the ad campaign
began is more than 123.

Transcribed Image Text:Before the furniture store began its ad campaign, it averaged 123 customers per day. The manager is
investigating if the average is larger since the ad came out. The data for the 11 randomly selected days
since the ad campaign began is shown below:
110, 154, 108, 112, 151, 146, 144, 130, 138, 129, 142
Assuming that the distribution is normal, what can be concluded at the a = 0.05 level of significance?
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Ho:
vSelect an answer
H1: ?V
Select an answer V
c. The test statistic ?
(please show your answer to 3 decimal places.)
d. The p-value =
e. The p-value is ?V a
f. Based on this, we should Select an answer
g. Thus, the final conclusion is that ...
(Please show your answer to 4 decimal places.)
the null hypothesis.
O The data suggest the populaton mean is significantly more than 123 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 123.
O The data suggest the population mean is not significantly more than 123 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 123.
O The data suggest that the population mean number of customers since the ad campaign began
is not significantly more than 123 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 123.
h Into
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