Consider the following hypotheses: H 0 : μ = 450 H A : μ ≠ 450 The population is normally distributed with a population standard deviation of 48. (You may find it useful to reference the appropriate...

Consider the following hypotheses:


H
₀:μ = 450

H_A
:μ ≠ 450

The population is normally distributed with a population standard deviation of 48.(You may find it useful to reference the appropriate table:
z tableor t table)

b-1. Calculate the value of the test statistic with x−x− = 437 andn = 75. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)