Question

Arandom sample of n1 =12 students majoring in accounting in a college of business has a...

Arandom sample of n1 =12 students majoring in accounting in a college of business has a mean grade-point average of 2.70 (where A = 4.0) with a sample standard deviation of 0.40. For the students majoring in computer information systems, a random sample of n2 = 10 students has a mean grade-point average of 2.90 with a standard deviation of 0.30. The grade-point values are assumed to be normally distributed. Test the null hypothesis that the mean-grade point average for the two categories of students is not different, using the 5 percent level of significance. What is the test statistic?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Conclusion; We can conclude that  the mean-grade point average for the two categories of students is not different.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Test the claim that the population of sophomore college students has a mean grade point average...
Test the claim that the population of sophomore college students has a mean grade point average of 2.24versus a mean grade point average greater than 2.24. Sample statistics include n=23, x⎯⎯⎯=2.4, and s=0.6. Use a significance level of α=0.01. The test statistic is   The critical value is​
6. The grade point average for 10 randomly selected college students is: 2.9, 3.1, 3.4, 3.6,...
6. The grade point average for 10 randomly selected college students is: 2.9, 3.1, 3.4, 3.6, 3.1, 4.0, 2.5, 3.7, 3.0, 2.5.( Assume the sample is taken from a normal distribution) a) Find the sample mean. (show all work) b) Find the sample standard deviation. c) Construct a 99% C. I. for the population mean
(1 point) Test the claim that the population of sophomore college students has a mean grade...
(1 point) Test the claim that the population of sophomore college students has a mean grade point average of 2.252.25 versus a mean grade point average greater than 2.252.25. Sample statistics include n=23, x¯=2.4, and s=0.8. Use a significance level of α=0.01. The test statistic is   The critical value is The final conclusion is A. There is not sufficient evidence to support the claim that the mean grade point average is greater than 2.25. B. There is sufficient evidence to...
Test the claim that the population of sophomore college students has a mean grade point average...
Test the claim that the population of sophomore college students has a mean grade point average greater than 2.25. Sample statistics include n=180, xtopbar =2.43, and s=0.8. Use a significance level of α=0.05. The test statistic is= The critical value is= The P-Value is=
It has been seen that the mean grade point average for students who live on campus...
It has been seen that the mean grade point average for students who live on campus is 2.73 with standard deviation of 0.44, while that of students who live off campus is 2.48 with standard deviation of 0.67. 12 sophomores are randomly selected from campus dormitories at a college and 20 sophomores are randomly selected from students who live off campus. The mean grade point averages of the two groups are compared. a)The expected difference in the sample grade point...
The grade point averages (GPA) of 18 randomly selected college students are used to estimate the...
The grade point averages (GPA) of 18 randomly selected college students are used to estimate the mean GPA of the college students. The GPAs from the sample are as follows: 2.3 3.3 2.6 1.8 0.9 3.1 4.0 0.7 3.1 2.3 2.0 3.1 3.4 1.3 2.6 2.6 3.7 2.2 a- Would it be justified if the standard normal distribution is used to construct the confidence interval? Explain. b-If the population is assumed to be normally distributed, construct a 98% confidence interval...
The grade point averages​ (GPA) for 12 randomly selected college students are shown on the right....
The grade point averages​ (GPA) for 12 randomly selected college students are shown on the right. Complete parts​ (a) through​ (c) below. Assume the population is normally distributed. 2.3 3.4 2.8 1.8 0.9 4.0 2.5 1.1 3.8 0.5 2.2 3.2 ​(a) Find the sample mean. x overbarequals = ​(Round to two decimal places as​ needed.) ​(b) Find the sample standard deviation. sequals = (Round to two decimal places as​ needed.) ​(c) Construct a 95​% confidence interval for the population mean...
Do male college students spend more time than female college students using a computer? This was...
Do male college students spend more time than female college students using a computer? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent...
Do male college students spend more time than female college students using a computer? This was...
Do male college students spend more time than female college students using a computer? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent...
Do male college students spend more time than female college students using a computer? This was...
Do male college students spend more time than female college students using a computer? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT