Question

Question 1 A random sample of 49 teenagers from a large population was surveyed, and the...

Question 1 A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5.

a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week

. b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.

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
A random sample of 49 teenagers from a large population was surveyed, and the average number...
A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5. a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week. b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.
A random sample of 49 teenagers from a large population was surveyed, and the average number...
A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5. a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week. b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.
A random sample of 49 teenagers from a large population was surveyed, and the average number...
A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5. a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week. b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.t v
A random sample of 800 teenagers revealed that in this sample, the mean number of hours...
A random sample of 800 teenagers revealed that in this sample, the mean number of hours per week of TV watching is 13.2 with a sample standard deviation of 1.6. Find and interpret a 95% confidence interval for the true mean weekly hours of TV watching for teenagers.
An Atlanta restaurant surveyed 49 diners at random, in order to determine the mean population expenditure...
An Atlanta restaurant surveyed 49 diners at random, in order to determine the mean population expenditure at the restaurant for each mean. The restaurant wants to estimate the population mean with 95% confidence level. Given the following: X-bar = $49 Population Standard Deviation = $5 Determine the margin of error. Determine the appropriate confidence interval.
the employees of cybertronics, inc. need to complete a certification online. a random sample of 49...
the employees of cybertronics, inc. need to complete a certification online. a random sample of 49 employees gives an average time for completion of all coursework and passing the tests of 6 hours. assume the population standard deviation is 6 hours and the sample standard deviation is 6 hours. assume that the population standard deviation is 6 hours and the population of employees is fairly large. construct a 95% confidence interval for the average time required to complete the certification.
the employees of cybertronics, inc. need to complete a certification online. a random sample of 49...
the employees of cybertronics, inc. need to complete a certification online. a random sample of 49 employees gives an average time for completion of all coursework and passing the tests of 6 hours. assume the population standard deviation is 6 hours and the population of employees is fairly large. construct a 95% confidence interval for the average time required to complete the certification.
A random sample of 49 lunch customers was selected at a restaurant. The average amount of...
A random sample of 49 lunch customers was selected at a restaurant. The average amount of time the customers in the sample stayed in the restaurant was 40 minutes. From past experience, it is known that the population standard deviation equals 10 minutes. a. Compute the standard error of the mean. b. Construct a 95% confidence interval for the true average amount of time customers spent in the restaurant. c. With a .95 probability, what sample size would have to...
1. Two researchers, Beth and Frank, ask a random sample of teenagers whether or not they...
1. Two researchers, Beth and Frank, ask a random sample of teenagers whether or not they had been to the movies in the last month. They find that their sample proportion (p) of teens who said yes was .8 (80%) When they construct a confidence interval based on this sample proportion, Beth comes up with (.73, .87) while Frank gets (.75, .89). Indicate which interval has to be wrong, and explain your choice. 2. In a random sample of 28...
The mean number of hours of part-time work per week for a sample of 317 teenagers...
The mean number of hours of part-time work per week for a sample of 317 teenagers is 29. If the margin of error for the population mean with a 95% confidence interval is 2.1, construct a 95% confidence interval for the mean number of hours of part-time work per week for all teenagers.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT