Question

To test whether students in a higher grade level will be less disruptive in class, a...

To test whether students in a higher grade level will be less disruptive in class, a school psychologist records the number of documented interruptions during one day of classes from nine local high schools. The sample consisted of nine

(n = 9)

freshman, sophomore, junior, and senior high school classes. The data for each high school class are given in the table.

High School Class
Freshman Sophomore Junior Senior
0 4 3 2
5 0 3 3
4 1 4 5
1 4 0 0
1 2 6 4
3 5 0 4
2 2 5 4
2 0 6 3
4 3 4 2

(a) Complete the F-table. (Round your answers to two decimal places.)

Source of
Variation
SS df MS F
Between
groups
Within
groups (error)
Total

Homework Answers

Answer #1

The statistical software output for this problem is:

Hence,

a) F table is:

Source SS DF MS F-Stat
Columns 7.19 3 2.40 0.72
Error 106.44 32 3.33
Total 113.64 35
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
To test whether students in a higher grade level will be less disruptive in class, a...
To test whether students in a higher grade level will be less disruptive in class, a school psychologist records the number of documented interruptions during one day of classes from nine local high schools. The sample consisted of nine (n = 9) freshman, sophomore, junior, and senior high school classes. The data for each high school class are given in the table. High School Class Freshman Sophomore Junior Senior 5 0 4 1 4 3 3 2 2 0 6...
To test whether students in a higher grade level will be less disruptive in class, a...
To test whether students in a higher grade level will be less disruptive in class, a school psychologist records the number of documented interruptions during one day of classes from nine local high schools. The sample consisted of nine (n = 9) freshman, sophomore, junior, and senior high school classes. The data for each high school class are given in the table. High School Class Freshman Sophomore Junior Senior 4 0 5 3 5 1 4 5 3 4 3...
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...
Dr. Smith believes that there may be a difference in grades based on if the student...
Dr. Smith believes that there may be a difference in grades based on if the student is a senior, junior, sophomore, or freshman. The results are shown in Table 2. Are Dr. Smith’s grade unequally distributed across grade levels? Table 2: Dr. Smith’s Grade Distribution by Grade Level Grade Senior Junior Sophomore Freshman Total A 10 7 1 1 B 20 20 2 2 C 3 3 4 4 D 1 2 8 1 F 1 3 3 4 Total...
2. (Lesson 11) The “Year” variable represents whether each student identified as a first-year student, sophomore,...
2. (Lesson 11) The “Year” variable represents whether each student identified as a first-year student, sophomore, junior, or senior. Use Minitab Express to conduct a chi-square test to determine if the proportions of students who identify as each year are not all equal. Use the five-step hypothesis testing procedure. [25 points] Step 1: State hypotheses and check assumptions Step 2:Compute the test statistic Step 3: Determine the p-value Step 4: Make a decision (reject or fail to reject the null)...
3. (Lesson 11) Use Minitab Express to conduct a chi-square test to determine if there is...
3. (Lesson 11) Use Minitab Express to conduct a chi-square test to determine if there is a relationship between gender and whether the student said that they would prefer to win an Academy Award, Nobel Prize, or Olympic Medal.  Use the five-step hypothesis testing procedure. [25 points] Step 1: State hypotheses and check assumptions Step 2:Compute the test statistic Step 3: Determine the p-value Step 4: Make a decision (reject or fail to reject the null) Step 5: State a real...
Does college grade point average (GPA) depend on gender? Does it depend on class (freshman, sophomore,...
Does college grade point average (GPA) depend on gender? Does it depend on class (freshman, sophomore, junior, senior)? In a study, the following GPA data were obtained for random samples of college students in each of the cells. Class Gender Freshman Sophomore Junior Senior Male 2.8    2.1 2.7    3.0 2.5    2.3 2.9    3.5 3.1    2.9 3.2    3.8 3.8    3.6 3.5    3.1 Female 2.3    2.9 3.5    3.9 2.6    2.4 3.3...
A survey looked at the value of recreational sports on college campuses. One of the questions...
A survey looked at the value of recreational sports on college campuses. One of the questions asked each student to rate the importance of recreational sports to college satisfaction and success. Responses were on a 10-point scale with 1 indicating total lack of importance and 10 indicating very high importance. The following table summarizes these results: Class n Mean score Freshman Sophomore Junior Senior 727 535 592 439 7.6 7.6 7.5 7.3 (a) To compare the mean scores across classes,...
A survey looked at the value of recreational sports on college campuses. One of the questions...
A survey looked at the value of recreational sports on college campuses. One of the questions asked each student to rate the importance of recreational sports to college satisfaction and success. Responses were on a 10-point scale with 1 indicating total lack of importance and 10 indicating very high importance. The following table summarizes these results: Class                 n         Mean score Freshman Sophomore Junior Senior 720 536 595 437 7.6 7.6 7.5 7.3 (a) To compare the mean scores across classes,...
Business faculty at a prestigious community college wanted to evaluate the infuence of Netflix on student...
Business faculty at a prestigious community college wanted to evaluate the infuence of Netflix on student academic performance. After careful consideration, the faculty decided to conduct a prelimary study to see if they could justify a more detailed analysis. The preliminary study follows: Sixty (60) students were selected for two sections of a Business Adminstration class. The students were selected based on their previous performance in an introductory level course. In order to enroll in one of the sections, students...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT