User Account

All Pages

Population standard deviation

Assignment Help Basic Statistics
Reference no: EM131468955

In a random sample of 60?refrigerators, the mean repair cost was ?$141.00 and the population standard deviation is ?$16.60.

Construct a 90?% confidence interval for the population mean repair cost. Interpret the results.

Construct a 90?% confidence interval for the population mean repair cost.

90?% confidence interval is __________, __________?

?(Round to two decimal places as? needed.)

Interpret you results. Choose the correct answer below.

A. With 90?% ?confidence, it can be said that the confidence interval contains the true mean repair cost.

B.With 90?% ?confidence, it can be said that the confidence interval contains the sample mean repair cost.

C.The confidence interval contains 90?% of the mean repair costs.

Reference no: EM131468955

Questions Cloud

How many children are there to a family : On average, how many children are there to a family?
Confidence intervals for the population proportion : Interpret the results and compare the widths of the confidence intervals. If? convenient, use technology to construct the confidence intervals.
What does professional commitment mean to you : Do you believe that nurses as lobbyists are essential to the growth of nursing as a profession? Why or why not?
Compute an ldlt - factorization of this matrix : Permute the rows/columns of the matrix B given so that the diagonal elements from B appear in the order 2, 3, 4, 5, 1. Compute an LDLT - factorization.
Population standard deviation : In a random sample of 60?refrigerators, the mean repair cost was ?$141.00 and the population standard deviation is ?$16.60.
Which characteristics are the most important and why : What characteristics should be appraised when evaluating qualitative and quantitative research design?
Find a factorization of b : Find a factorization B = LDLT, where L is lower triangular with ones on the diagonal and D is a diagonal matrix with nonnegative diagonal elements.
Presentation for the senior management team : Prepare an 11- to 15-slide Microsoft® PowerPoint® presentation for the senior management team based on the business problem or opportunity you described.
Select a nursing theory that you find useful : Select a nursing theory that you find useful in nursing practice. Does your selected nursing theory identify a possible intervention?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability-random population

If we select one box of cereal at random from this population, what is the probability that it will weigh less than 915 grams?

  A company that produces dvd drives has a 12 defective rate

a company that produces dvd drives has a 12 defective rate. let x represent the number of defectives in a random sample

  The amount of income spent on housing is an important

The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments

  A recent survey indicated that the average yearly salary of

a recent survey indicated that the average yearly salary of middle school teachers in wichita kansas is 45000 with a

  Explain the meaning of the regression equation

What is the meaning of the computer printout.- Explain the meaning of the regression equation and the regression line as shown in Table.

  Find confidence limits for estimate of mean diameter

Determine (a) the 90% confidence limits, and (b) the 97% confidence limits for an estimate of the mean diameter of all the rivets produced by the machine in a day.

  One environmental group did a study of recycling habits in

one environmental group did a study of recycling habits in a california community. it found that 73 of the aluminum

  Standard deviation of data-students are within twelve points

The test grades at a large school have an approximately normal distribution with a mean of 50. What is the standard deviation of the data so that 80% of the students are within 12 points (above or below) the mean?

  Probability and real world probability

List 1 profession example for each probability type: empirical probability and theoretical (classical) probability. Explain clearly how these probabilities are used.

  Comparing relationship between iv and dv

Which measure of association would the researcher use to compare the relationship between the IV and DV? Why?

  Sample proportion of respondents who cheated at least twice

Compute the 95% confidence interval for the true proportion of students who have cheated on at least two tests in the last year.

  They have collected data on gender shoe size and height and

statistics is about more than calculations. it is about turning data into information and using this information to

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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