Hypothesis test-independent samples t-test

Assignment Help Basic Statistics
Reference no: EM13113539

Ms. Lisa Monnin is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information.

Sales: 131, 135, 146, 165, 136, 142

Audit: 130, 102, 129, 143, 149, 120, 139

At the .10 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff? What is the p-value? (Show all work)

Reference no: EM13113539

Questions Cloud

Question regarding two-tailed test : How to decide whether your test should be one-tailed or two-tailed/directional or non-directional. Gives an example of each type, with an explanation of why it is/is not directional.
Information about inferential tests : An analyst working at BC Statistics is compiling a report on the use of the internet at home. In 1997, 250 randomly selected people were asked about the average amount of time spent on the internet per week.
Identify the solids and explain your answers : A student is given four solid samples labeled W, X, Y, and Z. All have a metallic luster. She is told that the solids could be gold, lead sulfide, mica (which is quartz or SiO2), and iodine.
What is the value of b in the regression : A regression of height (X, in inches) on hourly earnings (Y, in dollars), yields the following results: What is the value of b1 in the regression Y = b0 + b1X?
Hypothesis test-independent samples t-test : Ms. Lisa Monnin is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information.
Developing null and alternative hypotheses : Develop null and alternative hypotheses to help the bank determine which option would provide the best incentive to consumers.
Find probability that all selected workers from day shift : How many selections result in all 6 workers coming from the day shift? What is the probability that all 6 selected workers from the day shift?
Computing two tailed test of hypothesis : In a normal population with sigma=20, a random sample of size n gave X(mean)=56.53. At the 5% significance level, make a two-tailed test of the null hypothesis mu=50, when (a) n=24 (b) n=36
What is its final temperature : A 5.0×101 sample of water absorbs 355 of heat.If the water was initially at 25.9, what is its final temperature.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Least square regression and coefficient of determination

Below are revenue and profit (both in $ billions) for nine large entertainment companies.

  Determining extrasensory perception

A person claims to have ESP (extrasensory perception). A coin is tossed 16 times, and each time the person is asked to predict in advance whether the coin will land heads or tails.

  Probability of the event

The results of a survey for an airline are shown below. Use the chart to find the probability that the traveler was

  The point estimate of the reduction in the mean

During the 2003 season, MLB took steps to speed up the play of baseball games in order to maintain fan interest; the following results come from a sample of 60 games played during the summer of 2002. And a sample of 50 games played during the summ..

  Description of scatter diagram in excel

Given the following data, create a scatter diagram (using Excel), click on the points as demonstrated in the Excel workbook, and have Excel place the regression equation and coefficient of correlation on the graph for you. Interpret the results (i..

  Probability of graduate degrees

A firm plans to hire 100 employees during the year. It expects that 25 of these employees will obtain graduate degrees within the next 5 years of being hired.

  Formulating suitable null and alternative hypothesis

Formulate a suitable null and alternative hypothesis to test the students' claim that they followed their instructor's recommendation at a 5% level of significance and interpret your findings.

  Does the model accurately depict the truth

Model Fitness. With any statistical model, we assess the fit: Does the model accurately depict the truth? Explain how one of the following helps assess the "fitness" of the mean.

  Find out statistical support in this poll for statement

Explain can you find out statistical support in this poll for that statement. When it comes to the war in Iraq, among which of the subsiquent statements comes closer to your point of view.

  Conditional values and probabilities

Construct a decision table for this problem. Include all conditional values and probabilities in the table.

  Computing the correlation coefficient for given data

One of the most important uses of a correlation is its potential use in_________

  Assuming scores which are normally distributed

If the board wants to set the passing score so that only the best 80% of all applicants pass, what is the passing score? Assume that the scores are normally distributed. Round to the nearest whole number.

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