Question

QUESTION 41

1. Use the following scenario and data for questions 41 to 45:
   
   
   The distribution of weights of cereal boxes filled in a production line is unknown. However, the mean is u=15.60 OZs and the standard deviation is 0.2200 OZs. To check if the weights of the cereal boxes meet specifications, a random sample of n=64 boxes is selected. Use X to denote the sample mean.
   
   
   The mean (or expected value) of the sample mean X is:

   		15.0000
   		15.4400
   		15.8800
   		15.7600
   		none of the above

2. The standard deviation of the sample mean X is

   		0.0220
   		0.0275
   		0.0800
   		0.6400
   		none of the above

3. The probability that the sample mean X is less than or equal to 15.58 OZs is closest to

   		0.2327
   		0.2673
   		0.7273
   		0.7673
   		none of the above

4. The probability that the sample mean X is less than or equal to 15.63 OZs is closest to

   		0.1379
   		0.3621
   		0.8621
   		1.0909
   		none of the above

5. The probability that the sample mean X is between 15.55 and 15.58 OZs is closest to

   		0.7329
   		0.4656
   		0.2673
   		0.1983
   		none of the above

Answer 1