Mathew is interested in the relationship between a learning game Power Physics and Creativity. He has developed an instrument for testing Creativity. After some initial pilot tests, he and Russell...

Mathew is interested in the relationship between a learning game Power Physics and Creativity. He has developed an instrument for testing Creativity. After some initial pilot tests, he and Russell work out that the hypothesized mean creativity score should be 7 and the standard deviation for creativity scores should be around ? = 2.3.

Suppose the mean of the pilot sample follows a normal distribution with a mean of 7 (from the null hypothesis). What is the probability of observing a mean posttest score as big or bigger than the one that Mathew saw in the pilot test (i.e., what is the
p-value)?