Question

Instructions You are responsible for analyzing the results of a study comparing two ulcer therapies involving 43 participants. Here is the data output from a t-test analysis:

The study compares two ulcer therapies (A and B) with three variables: time of last visit in months, age in years and duration of disease. Write a persuasive report type essay.

Describe the statistical test and the reason for using it. Briefly describe the summary statistics of the participants. What conclusions can you draw and what recommendations could you provide based on this information?

* my professor said there are three t test analyses, how can I obtain the t values or draw a conclusion from the data provided on SPSS?

Group Statistics

	Treatment Group	N	Mean	Std Deviation	Std Error Mean
Time of last	A	19	9.74	3.557	.816
visit in months	B	24	10.96	2.216	.452
Age in	A	19	50.74	16.993	3.898
Years	B	24	51.17	16.325	3.332
Duration of	A	19	1.32	.478	.110
Disease	B	24	1.25	.442	.090

Answer 1

The statistical test is the Independent Samples t-test for two means.

For the first t-test for Time of last visit in months:

A	B
9.74	10.96	mean
3.557	2.216	std. dev.
19	24	n
	41	df
	-1.22000	difference (A - B)
	8.30940	pooled variance
	2.88260	pooled std. dev.
	0.88519	standard error of difference
	0	hypothesized difference
	-1.378	t
	.1756	p-value (two-tailed)

Therefore, we can conclude that there is no significant difference between the means of A and B for the Time of last visit in months.

For the second t-test for Age in Years:

A	B
50.74	51.17	mean
16.993	16.325	std. dev.
19	24	n
	41	df
	-0.43000	difference (A - B)
	276.27674	pooled variance
	16.62157	pooled std. dev.
	5.10416	standard error of difference
	0	hypothesized difference
	-0.084	t
	.9333	p-value (two-tailed)

Therefore, we can conclude that there is no significant difference between the means of A and B for Age in Years.

For the third t-test for Duration of Disease:

A	B
1.32	1.25	mean
0.478	0.442	std. dev.
19	24	n
	41	df
	0.07000	difference (A - B)
	0.20990	pooled variance
	0.45815	pooled std. dev.
	0.14069	standard error of difference
	0	hypothesized difference
	0.498	t
	.6215	p-value (two-tailed)

Therefore, we can conclude that there is no significant difference between the means of A and B for the Duration of Disease.