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Scientists claim eating chocolate can improve memory. So to test this theory 10 subjects were given...

Scientists claim eating chocolate can improve memory. So to test this theory 10 subjects were given a memory test in which they had to remember 25 items with and without having eaten chocolate. The results were as follows:

Subject A B C D E F G H I J
Without Chocolate 18 16 21 23 14 15 14 19 20 22
With Chocolate 20 17 23 21 16 18 13 23 22 20

What is the p-value? Round answer to four decimal places (i.e. 0.1234)? Answer

At a level of significance (alpha) of 0.05, what is your decision?

reject the null hypothesis

accept the null hypothesis

fail to reject the null hypothesis

Math   Statistics-And-Probability   
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Answer #1

p value =0.0643

since p value > 0.05

fail to reject the null hypothesis

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