Statistical Inferences

Question 1

A confidence level of 95% means:

Revolt · Accepted Answer

95% of the time, population data will fall between 149.61 and 150.39.

Question 2

The confidence interval is [___] to [___].

Revolt · Accepted Answer

0.27 to 0.39

Question 3

What range of values shows the confidence interval for the study?

Revolt · Accepted Answer

149.61 to 150.39

Question 4

Among 420 randomly selected employees at a company, the mean number of hours of overtime worked per month is 10 hours and the standard deviation is 1.6. What is the margin of error, assuming a 99% confidence level?

Revolt · Accepted Answer

0.20

Question 5

What is the margin of error, assuming a 90% confidence level? Round your answer to the nearest tenth.

Revolt · Accepted Answer

2.6

Question 6

The margin of error, assuming a 95% confidence level, is approximately . Round to the nearest hundredth

Revolt · Accepted Answer

0.04

Question 7

The margin of error for a 95% confidence level will be greater than 0.3.less than 0.3.equal to 0.3.

Revolt · Accepted Answer

greater than 0.3.

Question 8

The confidence interval is ⇒ 7.33 to ⇒ 7.67.

Revolt · Accepted Answer

⇒ 7.33: 0.27 to 0.39; ⇒ 7.67: 0.27 to 0.39

Statistical Inferences Answers

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