48. Newly purchased tires of a certain type are supposed to be lled to a pressure of...

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48. Newly purchased tires of a certain type are supposed to be lled to a pressure of 30 lb/in2. Let m denote the true average pressure. Find the P-value associated with each given z statistic value for testing H0: m  30 versus Ha: m  30.

a. 2.10

b. 1.75

c. .55

d. 1.41

e. 5.3

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