Last year, the average time spent per visit by students seeking assistance at the tutoring center of a local community c

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Last year, the average time spent per visit by students seeking
assistance at the tutoring center of a local community college was
45 minutes with a standard deviation of 20 minutes. The supervisor
at the tutoring center wants to know if this has changed. A random
sample of 38 visits to the tutoring center reveals an average time
per visit of 53 minutes. Does the evidence support the hypothesis
that the average time per visit has changed? (at α = .05)
Assume σ = 20 minutes
What is the probability of getting a result as least as extreme
as x̅ if the null hypothesis is true? Round to 3 decimal
places.
p =