Population Proportion

Question 1

The president of a bowling league wanted to estimate the average highest bowling score of all its 200 members. Instead of surveying all 200 members, she randomly selected 20 members and recorded their highest scores. She found the sample mean to be 237. What inference can she make based on the sample mean?

Revolt · Accepted Answer

The average of the highest games bowled in the league was 237.

Question 2

0.100.13✔ 0.31X 0.40

Revolt · Accepted Answer

✔ 0.31

Question 3

0.31X 0.6✔ 0.690.87

Revolt · Accepted Answer

✔ 0.69

Question 4

✔ 4.2X 5.17.68.1

Revolt · Accepted Answer

✔ 4.2

Question 5

equal to✔ less thanX more than

Revolt · Accepted Answer

✔ less than

Question 6

What is the minimum sample size, n, that he needs in order to meet these requirements? Complete the statements.

Revolt · Accepted Answer

The value of 3% represents the .: margin of error; In the formula n = (1 – ) • , the value of (1 – ) is .: 0.59; When n is calculated, the result after rounding is .: 1,033

Question 7

0.030.41✔ 0.59X 0.97

Revolt · Accepted Answer

✔ 0.59

Question 8

✔ 1,0331,750X 2,1782,519

Revolt · Accepted Answer

✔ 1,033

Population Proportion Answers

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