The Owner of a Meat Market Has an Assistant Who

question 114

Multiple Choice

The owner of a meat market has an assistant who has determined that the weights of roasts are normally distributed,with a mean of 3.2 pounds and standard deviation of 0.8 pounds.If a sample of 25 roasts yields a mean of 3.6 pounds,what is the Z-score for this sample mean?

• A)−2.50
• B)2.50
• C)−0.50
• D)None of these choices.