Question

The wait times in the drive-thru of a local coffee shop are Complete the sentences.

Normally distributed, with a mean of 4.3 minutes and a
standard deviation of 0.9 minutes.
The 12th percentile is found on the side of the
Normal distribution, so the z-score at the 12th
Use the z-table to answer the question.
percentile will be
The Z-score is
Done

Answer 1

Explanation:

The 12th percentile is found on the LEFT of the graph since it is 0.12.

Since it’s on the left, the percentage will be NEGATIVE.

The z-score is -1.175

ITS RIGHT ON EDGE.

Answer 2

The 12th percentile is found on the LEFT side of the Normal distribution, so the z-score at the 12th

Use the z-table to answer the question.

percentile will be NEGATIVE

The Z-score is -1.175

Explanation:

Got it right on edge