Stoaches are fictional creatures that feed on funistrada. According to Wikipedia, adult stoach weights are normally distributed, with a mean of 393 g and a standard deviation of 54 g. You weigh a...

Stoaches are fictional creatures that feed on funistrada.

According to Wikipedia, adult stoach weights are normally distributed, with a mean of 393 g and a standard deviation of 54 g.

You weigh a random sample of 64 stoaches, and find a sample mean weight of 384.4 g.

Assume Wikipedia is correct about the standard deviation. What is the ?p-value for a two-sided hypothesis test that Wikipedia is also right about the mean weight? (Give your answer to 4 decimal places.