Test the given claim. Identify the null hypothesis, alternative hypothesis, crit

Question

Test the given claim. Identify the null hypothesis, alternative hypothesis, critical values, and conclusion. Sketch the graph to confirm your solution. The health of employees in the given company is monitored by periodically weighing them in. A sample of 54 employees has a mean weight of 183.9 lb. Assuming that the standard deviation of all employees in the indicated company is known to be 121.2 lb, use a 0.10 significance level to test the claim that the population mean of all such employees weights is less than 200 lb. 14 pt.

Explanation / Answer

H0:=200;

H1:<200; Test statistic: z

=

-0.98. P

-

value: 0.1635. Fail to reject H0

. There is not sufficient evidence to

support the claim that the mean is less than 200 pounds

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