Question

Use 2PropZTest, 2 SampTTest, or T Test

In a study about magnetic pain therapy, two groups of adults were questioned about their pain levels. Use α = 0.01 to test the claim that magnetic therapy doesn’t help pain.

No magnets : n = 20, p=0.4

5 Magnets: n = 20, p=0.4

Answer 1

The hypothesis being tested is:

H0: p1 = p2

Ha: p1 ≠ p2

p1	p2	pc
0.4	0.4	0.4	p (as decimal)
8/20	8/20	16/40	p (as fraction)
8.	8.	16.	X
20	20	40	n
	0.	difference
	0.	hypothesized difference
	0.1549	std. error
	0.00	z
	1.0000	p-value (two-tailed)

The p-value is 1.000.

Since the p-value (1.000) is greater than the significance level (0.01), we fail to reject the null hypothesis.

Therefore, we can conclude that magnetic therapy doesn’t help the pain.

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