Discrete Random Variables – Mean

Question 1

Which value of is least likely to occur if the newspaper’s claim is correct?

Revolt · Accepted Answer

0.80

Question 2

The sampling distribution of has bias and variability.

Revolt · Accepted Answer

high

Question 3

Is the sample minimum an unbiased estimator of the population minimum?

Revolt · Accepted Answer

no

Question 4

David conducts his own study. He selects a random sample of 50 students and asks if they are getting 9 hours of sleep per night. Thirty of the 50 students are not getting enough sleep.Does David’s sample result provide convincing evidence that more than 50% of all students at the school are not getting enough sleep?

Revolt · Accepted Answer

No, it is not rare to find a sample result of 0.6 or greater if 0.5 is true. In fact, 19 out of 200 or a proportion of 0.095 of the simulated random samples are 0.6 or greater.

Question 5

What is the mean of the sampling distribution of these sample minimums?

Revolt · Accepted Answer

6.9

Question 6

What is the minimum value of the population?

Revolt · Accepted Answer

5

Question 7

The sampling distribution of has bias and variability.

Revolt · Accepted Answer

high

Question 8

This partial sampling distribution of has bias and variability.

Revolt · Accepted Answer

high

Question 9

This partial sampling distribution of has bias and variability.

Revolt · Accepted Answer

low

Discrete Random Variables – Mean Answers

More from this Course

TRY EDGENUITY HACKS