Difference between the means of the two populations

Assignment Help Basic Statistics
Reference no: EM13496052

The following information was obtained from matched samples. The daily production rates for a sample of workers before and after a training program are shown below.

Worker Before After
1 20 22
2 25 23
3 27 27
4 23 20
5 22 25
6 20 19
7 17 18

What is the point estimate for the difference between the means of the two populations?
What is the null hypothesis to be tested?
What is the test statistic?
Develop a hypothesis test and illustrate your analysis to support your conclusion.

Reference no: EM13496052

Questions Cloud

Explain the specified electronic configuration : which of the following atoms with the specified electronic configuration would have the lowest first ionization energy? (a) (He)2s^2 2p^3 (b) (ne) 3s^2 3p^4 (c) [Xe]6s^1 (d) [Xe]6s^2 4f^14 5d^10 6p^1
Find the mean and variance of the random variable : Find the probability that a sample of size 9 will yield a mean and find the probability that the sample proportion
What are the basic financial statements : What are the limitations of the information that you provide to the management team? How can the management team ensure that they obtain a complete picture of the enterprise?
Tim gets exactly 12 emails on a particular day : What is probability that Tim gets exactly 12 emails on a particular day?
Difference between the means of the two populations : What is the point estimate for the difference between the means of the two populations?
The weighs of newborn elephants are normally distributed : The weighs of newborn elephants are normally distributed.
The average waiting time at a drive-in window : Waiting time at a bank drive-in widow the average waiting time at a drive-in window of local bank is 10.3 minutes,
The average cost of a gallon of regular unleaded fuel at gas : The average cost of a gallon of regular unleaded fuel at gas stations nationwide was $3.23, with a standard deviation of $0.23. Assume the national average holds for Connecticut. What is the probability that a sample of 30 gas stations in Conne..
Advantage of season changes in the united states : Advantage of season changes in the United States

Reviews

Write a Review

Basic Statistics Questions & Answers

  Describe the linear programming problem with constraints

Describe the Linear programming problem with constraints. Which among the following is not acceptable as a constraint in a linear programming problem?

  Random number sets

Choose a number at random from the set of numbers from the set of numbers {1,2,3,4,5}. Now choose a number from the subset {1,...,X). Call this second number Y.

  Find the mean lifetime of electrical device

Find the mean lifetime of this device? A electrical device consists of 4 identical components arranged so that the device functions if and only if all four components are working.

  Alternate hypotheses and decision rule

State the null and alternate hypotheses, the decision rule, find the test statistic, state your decision, and estimate the P value for the following:

  Computing chance of investment return

Investment A has an expected return of $25 million and Investment B has an expected return of $5 million. Market risk analysts believe the standard deviation of the return from A is $10 million

  From statistical standpoint was there type error made

A thorough examination reveals that there is nothing wrong with the filling machine. From a statistical standpoint, was there a type error made? If yes, which type? Explain.

  Normal distribution and six sigma

What then is the probability that a shaft will be acceptable? Suppose that the diameter of the shaft is a random variable that is Normally distributed.

  How selection process is biased against americans of mexican

Use a 0.01 significance level to test the claim that the selection process is biased against Americans of Mexican ancestry. Does the jury selection system appear to be fair?

  Find mean-standard error of sampling distribution

Find the mean/standard error of the sampling distribution of the proportion. Assume that 26% of students at a university wear contact lenses. We randomly pick 300 students.

  Whowere testedfor drugsfailed thetest.

In1990, 5.8% ofjob applicants whowere testedfor drugsfailed thetest.

  Question if the iq scores are normally distributed with a

question if the iq scores are normally distributed with a mean of 100 and a standard deviation of 15.a find the

  Probability that three invoices contain errors in sample

Finds that 3 contain errors. If the accountant's theory is correct, what is the probability that at least 3 invoices contain errors in a random sample of 10?

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