# Math

A behavioral psychologist plans an experimental sleep study with college students. Which statements about this experiment must be true in order to use a binomial model?

Select all that apply.

Each trial is independent.

There is an equal number of male and female students.

The only possible outcomes are wake-up or sleep.

Subjects are either first- or second-year college students.

The number of trials is fixed in advance.

Observers are not in the same room as the sleeping students.

Subjects must sign a human study release form.

1. 👍
2. 👎
3. 👁

## Similar Questions

1. ### statistics

The number of hours that college students sleep on a week night is approximated by a normal curve with a mean of 7 hours and a standard deviation of 1.7 hours. Answer the question below using a z table: On a week night, what

The number of hours that college students sleep on a week night is approximated by a normal curve with a mean of 7 hours and a standard deviation of 1.7 hours. Answer the question below using a z table: About what proportion of

3. ### statistics

College students average 7.8 hours of sleep per night with a standard deviation of 45 minutes. If the amount of sleep is normally distributed, what proportion of college students sleep for more than 9 hours?

4. ### Math

Typically, 10% of students make a D on their tests, 60% make a C on their test, and 30% make an A. Mrs. Smith uses a random-number table to find the experimental probability that of 5 students', at least 3 will make a C. The digit

1. ### Biology

Two students were testing the amount of fertilizer that would best promote the growth of tomato plants in a garden. Which of the following could be an unavoidable source of experimental error? Select one: a. variation of tomato

2. ### Biology

A scientist performs a controlled experiment. This means that A) the experiment is repeated many times to ensure that the results are accurate. B) the experiment proceeds at a slow pace to guarantee that the scientist can

3. ### Science

A cylinder and an airtight piston are used in the following experiment. The piston is pushed up and down in the cylinder and the resulting pressure of the air inside the cylinder is measured with a pressure gauge. The results of

4. ### Math-Statistics

A marketing research company needs to estimate which of two soft drinks college students prefer. A random sample of n college students produced the following 98% confidence interval for the proportion of college students who

1. ### Math

Kendall asked 40 randomly-selected seniors at his high school about their plans for after they graduated. Twenty-nine students said they planned to go to college. If there are 380 seniors at Kendall’s high school, estimate the

2. ### What study would be the best? Help with Psychology

What is the best kind of study to conduct when wanting to show that Variable X has a direct effect on Variable Y? The answer choices I am given are experiment, survey, observational study, non experimental study. I think the right

3. ### math

A community college has 3,000 students and 90 instructors. The college plans that enrollment will be 3,500 next year. How many new instructors should be hired if the college wants to keep the same student to instructor ratio?

4. ### Math

In a group of 40 students, all students study maths, 28 study biology and math, 20 students study geography and maths and x students study all three subjects. a. Draw a venn diagram to represent the information above, showing in