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The average life of an automobile tire of a certain manufacturer follows a Normal distribution, with a mean of 32,000 miles and a standard deviation of 1,250. Which z-score sepa…

The average life of an automobile tire of a certain manufacturer follows a Normal distribution, with a mean of 32,000 miles and a standard deviation of 1,250. Which z-score sepa…
asked 169k views
4 votes
The average life of an automobile tire of a certain manufacturer follows a Normal distribution, with a mean of 32,000 miles and a standard deviation of 1,250.

Which z-score separates the lower 70% from the upper 30% of the tires?


0.30

0.52

0.70

0.85

asked
User Neverwinter
by
8.6k points

2 Answers

2 votes

Answer:

B) 0.52

Explanation:

edge 2023

answered
User Mike Rowley
by
8.6k points
1 vote

Answer:

0.52

Explanation:

It’s right on edge.

The average life of an automobile tire of a certain manufacturer follows a Normal-example-1
answered
User Danielspaniol
by
8.4k points
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