Question

An educational researcher wishes to know if there is a difference in academic performance for college...

An educational researcher wishes to know if there is a difference in academic performance for college freshmen that live on campus and those that commute. Data was collected from 219219 students. Can we conclude that freshman housing location and academic performance are related?

Location   Average   Below Average   Above Average   Total
On campus   76   41   40   157
Off campus   29   17   16   62
Total   105   58   56   219

1- the value of the test statistic. Round your answer to three decimal places.

2-Find the degrees of freedom associated with the test statistic for this problem.

3-Make the decision to reject or fail to reject the null hypothesis at the 0.010.01 level of significance.

4-State the conclusion of the hypothesis test at the 0.010.01 level of significance.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An educational researcher wishes to know if there is a difference in academic performance for college...
An educational researcher wishes to know if there is a difference in academic performance for college freshmen that live on campus and those that commute. Data was collected from 267 students. Can we conclude that freshman housing location and academic performance are related at 0.01 level of significance? Round your answer to three decimal places.      Location On campus Off campus Total Average Below Average 89 29 36 43 125 72 Above Average Total      27 145 43 122 70...
A researcher is trying to determine whether there is a difference in the number of new...
A researcher is trying to determine whether there is a difference in the number of new friends that students make during their freshman year based on whether they live on or off campus. The descriptive statistics for the two groups are presented below. Conduct the appropriate hypothesis test to determine whether there is a significant difference in the number of new friends made. On-Campus Freshmen Off-Campus Freshmen X1 = 4.48 s1 =1.81 N1 =16 X2 =3.61 s2 =1.86 N2 =16...
A researcher interested in the effect of study habits on academic performance wanted to compare two...
A researcher interested in the effect of study habits on academic performance wanted to compare two types of study habits: cramming the night before vs. steady studying. He selected a sample of 5 students to use the cramming method for their midterm and the steady method for their final and compared their grades with the following result. Assume a normal population. Student Cramming Steady A 75 79 B 87 85 C 88 92 D 79 83 E 65 70 Specify...
A researcher wishes to see if there is a difference in the cholesterol levels of two...
A researcher wishes to see if there is a difference in the cholesterol levels of two groups of men. A random sample of 30 men between the ages of 25 and 40 is selected and tested. The average level is 223. A second sample of 25 men between the ages of 41 and 56 is selected and tested. The average of this group is 229. The population standard deviation for both groups is 6. At a 0.0l significance level, is...
In a study of the effect of college student employment on academic performance, the following summary...
In a study of the effect of college student employment on academic performance, the following summary statistics for GPA were reported for a sample of students who worked and for a sample of students who did not work. The samples were selected at random from working and nonworking students at a university. (Use a statistical computer package to calculate the P-value. Use ?employed ? ?not employed. Round your test statistic to two decimal places, your df down to the nearest...
A college wishes to test the claim that its graduates have an average monthly salary of...
A college wishes to test the claim that its graduates have an average monthly salary of more than R30 000 per month. A random survey of ten graduates gives the following as the monthly salaries (In thousands of South African Rands): 41 30 29 25 39 41 27 26 31 34 Test the claim at a 5% level of significance: a. State the null and alternative hypothesis. b. State and calculate the appropriate test statistic. c. Determine the critical value...
Suppose Diana, an educational researcher at a local university, wants to test the impact of a...
Suppose Diana, an educational researcher at a local university, wants to test the impact of a new Spanish course that integrates cultural-immersion teaching techniques with standard teaching practices. She selects a simple random sample of 62 freshmen and divides them into 31 pairs, matched on IQ and high school GPA. She randomly selects one member of each pair to take the new course, while the other member in the pair takes the traditional course. Next, Diana records the course grade,...
In a study of the effect of college student employment on academic performance, the following summary...
In a study of the effect of college student employment on academic performance, the following summary statistics for GPA were reported for a sample of students who worked and for a sample of students who did not work. The samples were selected at random from working and nonworking students at a university. (Use a statistical computer package to calculate the P-value. Use μemployed − μnot employed. Round your test statistic to two decimal places, your df down to the nearest...
At a school rally, a group of sophomore students organized a free raffle for prizes. They...
At a school rally, a group of sophomore students organized a free raffle for prizes. They claim that they put the names of all the students in the school in the basket and they randomly drew 36 names out of the basket. Of the prize winners, 6 were freshmen, 14 were sophomores, 9 were juniors and 7 were seniors. The results do not seem that random to you. You think it is a little fishy that sophomores organized the raffle...
The following table shows age distribution and location of a random sample of 166 buffalo in...
The following table shows age distribution and location of a random sample of 166 buffalo in a national park. Age Lamar District Nez Perce District Firehole District Row Total Calf 9 13 19 41 Yearling 10 10 13 33 Adult 36 26 30 92 Column Total 55 49 62 166 Use a chi-square test to determine if age distribution and location are independent at the 0.05 level of significance. a) Find or estimate the P-value of the sample test statistic....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT