Estimating the proportion of families

Assignment Help Basic Statistics
Reference no: EM1394399

In order to estimate the proportion of families who prefer female baby-sitters to male baby-sitters with an error of at most 8 percentage points and with at least 95 percent confidence, how large a sample should be taken?

Reference no: EM1394399

Reviews

Write a Review

 

Basic Statistics Questions & Answers

  Testing for equality of mean

Final scores averaged 66 for the treatment group; the SD was 21. For the control group, the figures were 59 and 20. What do you conclude?

  Determining the strength of given data using correlation

Determine the strength of the causal relationship between monthly sales and new home construction by using correlation.

  Computing value of exponentially smoothed series

Using smoothing constant of w = .80, compute the value of exponentially smoothed series in 1983.

  Prepare a frequency distribution

Prepare a frequency distribution from data given below that describes how long it took a person to drive to work in work week.

  Calculating the probability using z-score

How many ounces should they advertise on the box if they want to be sure that no more than 0.5% of the boxes are filled less than that advertised amount?

  Confidence interval for the proportion-type of discomfort

Construct a 95% confidence interval for the proportion of all those who experience some type of discomfort.

  Service charge for direct-deposit customers

The following data represent the service charge for direct-deposit customers if a customer's account falls below the minimum required $1,500 balance for a sample of 26 banks.

  Mean of a normal distribution probability

The mean of a normal distribution probability is 400 pounds. The standard deviation is 10. What is the area between 415 pounds and the mean of 400 pounds? (Round to 4 decimals)

  Computing mean of single-server queuing system

Entities arrive at single-server queuing system at average of 4 per hour and server can service average of 5 per hour. Mean in the queue is?

  Finding confidence interval for average number of television

If possible, determine a 95% confidence interval for average number of television sets in all 50,000 households. If this is not possible, describe why not.

  Length of time patron spend at the gymnasium

The manager of a local gymnasium has determined that the length of time patron spend at the gymnasium is normal distributed with mean 80minutes and standard deviation 20 minutes. What is the patrons who spend more than 120 minutes at the gymnasium..

  Determining bivariate normal distribution

Cores on two tests have a bivariate normal distribution; and that correlation of 2 scores is 0.8. Determine the probability that sum of the student's scores on 2 tests will be greater than 200?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd