Brendon sells tires at the local auto parts store. He told a customer that the tire width for a new tire was 21.5 centimeters. W
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Answer:
The test statistics is
Step-by-step explanation:
From the question we are told that
The sample size is n = 100
The null hypothesis is
The alternative hypothesis is
The sample mean is
The standard deviation is
The level of significance is
Generally the test statistics is mathematically represented as
=>
=>