Simple Random Sample

Question 1

Which statement best describes this sample?

Revolt · Accepted Answer

It is both a random sample and an SRS.

Question 2

A researcher wants to generate an SRS to study the blood pressures of a population of 100 athletes on four high school athletic teams.

Revolt · Accepted Answer

To be considered an SRS, the athletes in the sample of size n must have the same chance of being selected from the population as .: every other group of athletes of size n; To be considered an SRS, the sample .: cannot be biased

Question 3

A psychologist wants to create a simplified random sample of eight of his 920 subjects. He will use a random number table.

Revolt · Accepted Answer

Label: Label the students from .: 000 to 919; Randomize: Skip numbers greater than 919 and ignore repeats. Stop after students are selected.: 8; Select: Select the individuals that correspond to the randomly selected numbers .: 002, 757, 117, 377, 648, 204, 527, 127

Question 4

Which statements are true? Check all that apply.

Revolt · Accepted Answer

The sample is not a random sample.; There are restrictions placed on the sample.

Question 5

Which statements are true? Check all that apply.

Revolt · Accepted Answer

The sample is a random sample.; Each plant has an equal chance of being selected.

Question 6

A school principal wants to conduct a survey of student electronic use in her high school. She wants to select an SRS of 50 from the 690 students in the school using a random number table.Which of the following are correct methods for labeling the population? Check all that apply.00–50000–689001–050001–690001–999

Revolt · Accepted Answer

000–689; 001–690

Question 7

Her list of seven numbers is 69, 17, 80, 45, 21, 17, and 37. Which statement accurately describes the list of seven numbers?

Revolt · Accepted Answer

The seven numbers were not chosen properly because the list includes repeats.

Question 8

Which statements accurately describe his labels? Check all that apply.

Revolt · Accepted Answer

He did not label properly; he should have stopped at label 184.; He did not label properly; the labels do not contain the same number of digits.

Simple Random Sample Answers

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