Question on t test for mean

Assignment Help Basic Statistics
Reference no: EM13107363

Use a t-test to investigate the claim and assume that the population is normally distributed:

A large university says the mean number of classroom hours per week for full-time faculty is more than 9. A random sample of the number of classroom hours for full-time faculty for one week is listed. At α = 0.05 , test the university's claim.

10.7

9.8

11.6

9.7

7.6

11.3

14.1

8.1

11.5

8.5

6.9

Please show your work in Excel so that I can do similar problems.

Reference no: EM13107363

Questions Cloud

What is the kinetic energy of a ball of mass : What is the kinetic energy of a ball of mass 16.1 kg at the apex (highest point) of its trajectory, if it is thrown with an initial speed of 45 mph and an initial angle of 42.8 o with respect to the horizontal?
What is the frequency of the sound : Two loudspeaker, 4.0 m apart and facing each other, play identical sounds of the same frequency. You stand halfway between them, where there is a max. of sound intensity. moving from this point toward one of the speakers, you encounter a min. of s..
Why well designed job structure important to organization : Compensation systems vary from company to company, but tend to be similar in design and overall cost within a specific industry. Why is a well-designed Job Structure important to an organization?
Calculate the magnitude of their acceleration : A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley. Assume the rope and pulley are massless and there is no friction in the pulley.
Question on t test for mean : A large university says the mean number of classroom hours per week for full-time faculty is more than 9. A random sample of the number of classroom hours for full-time faculty for one week is listed. At 945; = 0.05 , test the university's claim.
What is the boat speed later when the gust subsides : A sailboat is traveling east at 5.0 m/s . A sudden gust of wind gives the boat an acceleration a = (0.80 m/s^2 , 40 degrees north of east). A)What is the boat's speed 4.5s later when the gust subsides? B)What is the boat's direction 4.5s later whe..
What minimum angle relative to the centerline perpendicular : Determine at what minimum angle relative to the centerline perpendicular to the doorway can someone outside the room hear no sound?
Paired t test for blood pressure data : D. The Sunbeam Corporation makes a wide variety of appliances for the home. One product is a digital blood pressure gauge. For obvious reasons, the blood pressure readings made by the monitor need to be accurate.
How many turns must there be in the high voltage end : A long distance power line is to carry 175 megawatts (1.25x10^8W) of alternating current power at distance of 15.0km at a peak voltage of 1.00MV and a frequency of 60Hz.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Question on independent sample t test for mean

In testing the equality of the two means below, what is the test statistic? (Use the unequal variances formula)

  Estimating regression equation using stepwise regression

A researcher used stepwise regression to create regression models to predict  Birth-Rate  (births per1000) using five predictors:

  What is the likely number of withdrawals

A university found that 20 percent of its students withdraw without completing the introductory statistics course. 20 students registered for a section of the course this term.

  Defective tires returned by consumers

if 100 tires are randomly selected for shipment to an outlet, what is the probability that they are all good? should this outlet plan to deal with defective tires returned by consumers?

  Examining a regression analysis

Prepare a paper examining a regression analysis on your collected data. Begin by describing the research issue, problem, or opportunity and the accompanying data. Then, perform a regression analysis on your data.

  Computing odds of flipping three tails

A fair coin is flipped 3 times. Compute the odds of flipping 3 tails.

  Probability application-bank accounts

A local bank reports that 80 percent of its customers maintain a checking account, 60 percent have a savings account, and 50 percent have both.

  Construct interval estimates for the population

Construct the 90% and 95% interval estimates for the population mean weekly sales.

  Estimate the proportion of the marine corp

A much larger sample would be needed to estimate the proportion of the U.S. Army's 2.4 million active duty and reserve personnel who approved the repeal than would be needed to estimate the proportion of the Marine Corp's 200,000 personnel who fel..

  Sample size required for particular confidence level

A machine for making nuts is known to create nuts with a standard deviation in size of 0.20mm. A tradesman is required to adjust the machine to make 49mm nuts.

  Multivariate techniques

Provide at least 1 example of how a real company has used each of the following multivariate techniques: factor analysis, multi-dimensional scaling, and cluster analysis.

  Valid description of the bootstrapping method

In which of the following situations is bootstrapping (and other resampling methods) often used and Which of the following is a valid description of the bootstrapping method.

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