Using the Central Limit Theorem

Question 1

If a random sample of 4 tires are selected, what is the probability that the mean number of miles they last is more than 60,000 miles? Use this standard Normal table to calculate this probability.

Revolt · Accepted Answer

0.0075

Question 2

✔ 0.0050.010.05Not appropriate

Revolt · Accepted Answer

✔ 0.005

Question 3

✔ YesNo

Revolt · Accepted Answer

Yes; Selection 1: Yes; Selection 2: unlikely

Question 4

likely✔ unlikely

Revolt · Accepted Answer

unlikely

Question 5

✔ YesNo

Revolt · Accepted Answer

Yes; Selection 1: Yes; Selection 2: likely; Selection 3: greater than

Question 6

✔ likelyunlikely

Revolt · Accepted Answer

likely

Question 7

✔ greater thanless than

Revolt · Accepted Answer

greater than

Question 8

If a random sample of 15 families that have one or more children under the age of 4 are selected, what is the probability that their mean annual diaper cost is more than $1,500? Is it appropriate to calculate this probability? If yes, use this standard Normal table to calculate the probability and select the correct probability. If no, then select “Not appropriate.”

Revolt · Accepted Answer

No; Selection 1: No; Selection 2: Not appropriate

Question 9

0.010.050.10✔ Not appropriate

Revolt · Accepted Answer

Not appropriate

Question 10

Is it appropriate to calculate this probability?

Revolt · Accepted Answer

Yes; 0.002

Using the Central Limit Theorem Answers

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