Question

In: Statistics and Probability

1. Hypothesis Test for Two Population Means, Independent Samples, Population Variances Unknown and Not Assumed to...

1. Hypothesis Test for Two Population Means, Independent Samples, Population Variances Unknown and Not Assumed to be Equal (5 points)

Group Statistics
	Specialty	N	Mean	Std. Deviation	Std. Error Mean
Enrollment	Research	17	596.235	163.2362	39.5906
Enrollment	Primary Care	16	481.500	179.3957	44.8489

Independent Samples Test
		Levene's Test for Equality of Variances		t-test for Equality of Means
		F	Sig.	t	df	Sig. (2-tailed)	Mean Difference	Std. Error Difference	90% Confidence Interval of the Difference
									Lower	Upper
Enrollment	Equal variances assumed	.077	.783	1.924	31	.064	114.7353	59.6475	13.6018	215.8688
	Equal variances not assumed			1.918	30.260	.065	114.7353	59.8234	13.2271	216.2435

To include in your submission for Problem 1:

ü Copy and paste both tables into your Word document below your name. If needed, please adjust the size

of the tables so that they fit on the page.

ü Since we are not assuming that the variances are equal for this test, please remember to use the

“Equal variances not assumed” row to answer the questions regarding your hypotheses.

ü Then type in the answers to questions a-e below your output.

a. Type the hypotheses.

b. Type in the test statistics for this independent t-test from the SPSS output.

c. Type in the p-value found from the SPSS output.

d. Type in your decision regarding the null hypothesis.

e. Type in your conclusion using context and units from the problem.

Expert Solution

orchestra answered 1 year ago

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