Question

According to a survey, 82% of people said they are not satisfied with their life. Assume...

According to a survey, 82% of people said they are not satisfied with their life. Assume the survey meets the conditions of a binomial experiment.

1. In a random survey of 21 students, find the probability that exactly 19 of them said they're not satisfied with their lives.

2. In a random survey of 21 students, find the probability that more than 19 of them would say that aren't satisfied with their lives.
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
According to a recent survey, 90% of students say that they do not get enough sleep....
According to a recent survey, 90% of students say that they do not get enough sleep. Assume the survey meets the conditions of a binomial experiment. Round your answers to three decimal places In a random survey of 28 students, find the probability that exactly 26 of them will say that they do not get enough sleep: In a random survey of 28 students, find the probability that more than 26 of them will say that they do not get...
According to a study conducted by a statistical​ organization, the proportion of people who are satisfied...
According to a study conducted by a statistical​ organization, the proportion of people who are satisfied with the way things are going in their lives is 0.84. Suppose that a random sample of 100 people is obtained. Complete parts​ (a) and​ (b) below. ​(a)  What is the probability that the proportion who are satisfied with the way things are going in their life exceeds 0.88​? The probability that the proportion who are satisfied with the way things are going in...
According to a national poll, 41% of American workers said that they were completely satisfied with...
According to a national poll, 41% of American workers said that they were completely satisfied with their job. Find the probability that in a random sample of 1140 American workers, the proportion of workers who are completely satisfied with their current job is between 0.4 and 0.44.
According to a study conducted by a statistical organization, the proportion of Americans who are satisfied...
According to a study conducted by a statistical organization, the proportion of Americans who are satisfied with the way things are going in their lives is 0.66. Suppose that a random sample of 205 Americans is obtained, a. About 69% of the samples will contain more than x Americans who are satisfied with their lives. Find the x. b. What is the probability that at least 140 Americans in the sample are satisfied with their lives? c. What is the...
According to a recent survey, 20% of college students purchase their lunch in the cafeteria. Assume...
According to a recent survey, 20% of college students purchase their lunch in the cafeteria. Assume 5 students are randomly selected. Use the binomial table in the text to answer the following questions. a. What is the probability that all 5 eat in the cafeteria? b. What is the probability that at least 3 eats in the cafeteria? c. What is the probability that not more than 4 eat in the cafeteria? d. What is the probability that exactly 1...
According to the High School Athletics Participation Survey, 55% of students enrolled in high school participate...
According to the High School Athletics Participation Survey, 55% of students enrolled in high school participate in athletic programs. Suppose 12 high school students are randomly selected and the number who participate in athletic programs is recorded. Round probabilities to 4 decimal places. Explain why this is a binomial experiment. Find and interpret the probability that exactly 7 high school students participate in athletic programs. Find and interpret the probability that fewer than 7 high school students participate in athletic...
According to the American Community Survey, 27% of residents of the United States 25 years old...
According to the American Community Survey, 27% of residents of the United States 25 years old or older had earned a bachelor degree. Suppose you select 12 residents of the United States 25 years old or older and recorded the number who had earned a bachelor degree. Round probabilities to 4 decimal places. Explain why this is a binomial experiment. Find and interpret the probability that exactly 5 of them had a bachelor degree. Find and interpret the probability that...
3. In a survey of 1,012 randomly selected U.S. adults, 47% said that they were satisfied...
3. In a survey of 1,012 randomly selected U.S. adults, 47% said that they were satisfied with the quality of education students receive in kindergarten through grade twelve. You wish to test if the proportion of U.S. adults who are satisfied with the education that students receive in kindergarten through grade twelve is more than 50%. [2 points] Give the null and alternate hypotheses. [5 points] Using the formula and showing work, find the standardized test statistic.         [10...
in a recent poll 45% of survey respondents said that if they would prefer the child...
in a recent poll 45% of survey respondents said that if they would prefer the child to be a boy. suppose you conducted a survey of 190 randomly selected students on your campus and find that 87 of them would prefer a boy a) use the normal approximation to the binomial to approximate the probability that in a random sample of 190 students at least 87 would prefer a boy assuming the true percentage is 45% b) does this result...
USING EXCEL A survey conducted for the Northwestern National Life Insurance Company revealed that 70% of...
USING EXCEL A survey conducted for the Northwestern National Life Insurance Company revealed that 70% of American workers say job stress caused frequent health problems. Suppose a random sample of 10 American workers is selected. What is the probability that more than seven of them say job stress caused frequent health problems? What is the probability that exactly five say job stress caused frequent health problems? What is the expected [mean] number of workers that would say job stress caused...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT