A random sample of 12 second-year university students, Ask an Expert

Statistics

A random sample of 12 second-year university students enrolled in a business statistics course wasdrawn. At the course's completion, each student was asked how many hours he or she spent doinghomework in statistics. The data are listed here. It is known that the population standard deviation is ? = 8.0. The instructor has recommended that students devote 3 hours per week for the duration ofthe 12-week semester, for a total of 36 hours. Test to determine whether there is evidence that the average student spent less than the recommended amount of time. Use a 5% significance level.

31 40 26 30 36 38 29 40 38 30 35 38

1. what are the hypotheses?

2. what is the rejection region?

3. what is the test statistic?

4. what is the p-value?

5. The conclusion of the hypothesis testing is:

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9983892

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Your firm is contemplating the purchase of a new 585000

Your firm is contemplating the purchase of a new $585,000 computer-based order entry system. The system will be depreciated straight-line to zero over its five-year life. It will be worth $95,000 at the end of that time. ...

Consider the distribution of 17 numbers Consider the distribution of 17 numbers:

Consider the distribution of 17 numbers: 6,9,11,19,23,27,29,36,41,43,47,50,51,55,58,63,67 A distribution of medical data is Normal with Mean of 40 and Standard Deviation of 10; that is N(40,10) a. Betty's score is 5.17. ...

Why is it that some people make very high returns on the

Why is it that some people make very high returns on the stock market if it is so efficient? Is it more difficult to reconcile very high returns with efficient markets if the same people make extraordinary returns year a ...

I define the parameter of interest in the context of the

(i) Define the parameter of interest in the context of the problem (ii) State the alternative hypothesis. (iii) State the distribution used to calculate the P-value (not the formula, but the distribution, eg. t distribut ...

1 assume that the international average homicide

1) Assume that the international average homicide victimization rate is 2.92 (per 100,000). In a sample of 24 industrialized nations, LaFree and Drass (2002) found that the mean homicide victimization rate was 1.49 (per ...

Shekhar plans to invest 1820 in a mutual fund at the end of

Shekhar plans to invest $1,820 in a mutual fund at the end of each of the next six years. If his opportunity cost rate is 8 percent compounded annually, how much will his investment be worth after the last annuity paymen ...

Amount of emails mean30find the probability that 20 emails

Amount of emails. Mean=30 Find the probability that 20 emails are received on the first day and 50 emails are received on the second day.

If a wooden car has 30 independent components that all must

If a wooden car has 30 independent components that all must function for the wooden car to operate successfully during a race, and the probability of successful operation for any single component is 0.999, what is the pr ...

A project has an initial outlay of 4623 it has a single

A project has an initial outlay of $4,623. It has a single payoff at the end of year 3 of $8,869. What is the net present value (NPV) of the project if the company's cost of capital is 12.43 percent?

Only 35 of the drivers in a particular city wear seat belts

Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round your answer to 4 decimal places)

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert