The health of employees is monitored by periodically weighing ...

[deesands]

The health of employees is monitored by periodically weighing them in.
 
  A sample of 54 employees has a mean weight of 183.9 lb. Assuming that  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.

Question 2

The owner of a small manufacturing plant employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work.
 
  The six distances are listed below:
   2.4 5.5 1.9 4.6 6.1 3.3
  Compute the range.
  A) 5.5 B) 4.2 C) 0.9 D) 1.9

[ngr69]

Answer to Question 1

:  = 200; :  < 200; Test statistic: z = -0.98. P-value: 0.1635. Fail to reject . There is not sufficient evidence to warrant the rejection of the claim that the mean equals 200.

Answer to Question 2

B

[deesands]

Gracias!

[nguyenhoanhat]

Thanks for the timely response, appreciate it