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
p value =0.0643
since p value > 0.05
fail to reject the null hypothesis
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