80.2K

Verified Solution

Link Copied!

The following random sample of weekly student expenses indollars is obtained from a normally distributed population ofundergraduate students with unknown parameters.

8	56	76	75	62	81	72	69	91	84
49	75	69	59	70	53	65	78	71	87
71	74	69	65	64

You have been charged to conduct a statistical test in SPSS toverify the claim that the‘average weekly student expenses’ isdifferent than 74 dollars using an alpha level of 5%.

           

What is the appropriate test that is applicable in this case.Explain your reasoning.

State the null and alternate hypotheses in this case usingproper statistical notations.

List one assumption that you are making about thedistribution.

Insert a copy of the summary table of descriptive statisticsgenerated in SPSS.

Insert a copy of the table for the statistical test youconducted in SPSS.

Drawing on information from the tables in (e) and/or (f) showhow they relate to t-statistic as obtained in SPSS.

What is/are the critical value(s) of the test statistic at the5% significance level.

What can you conclude about the claim based on the resultsgenerated from the statistical test? Make sure to support yourconclusion by referencing the appropriate statistics from thetest.

Compute the 90% confidence interval for the average weeklyexpenses.

Compute the Cohen’s d effect size.