Question

The test-retest method is one way of establishing the reliability of a test. The test is...

The test-retest method is one way of establishing the reliability of a test. The test is administered, and then, at a later date, the same test is re-administered to the same individuals. The correlation coefficient is computed between the two sets of scores. The following test scores were obtained in a test-retest situation. (Give your answers correct to two decimal places.)

First Score 87 95 70 72 77 93 88 82 86 73
Second Score 67 74 87 57 78 72 74 88 86 90

(a) Find r.


(b) Set a 95% confidence interval for ρ.

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

Homework Answers

Answer #1

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
The test-retest method is one way of establishing the reliability of a test. The test is...
The test-retest method is one way of establishing the reliability of a test. The test is administered, and then, at a later date, the same test is re-administered to the same individuals. The correlation coefficient is computed between the two sets of scores. The following test scores were obtained in a test-retest situation. (Give your answers correct to two decimal places.) First Score 84 88 94 95 97 73 77 64 93 92 Second Score 59 64 59 53 73...
The test-retest method is one way of establishing the reliability of a test. The test is...
The test-retest method is one way of establishing the reliability of a test. The test is administered, and then, at a later date, the same test is re-administered to the same individuals. The correlation coefficient is computed between the two sets of scores. The following test scores were obtained in a test-retest situation. (Give your answers correct to two decimal places.) First Score 84 73 98 92 86 69 93 66 89 97 Second Score 74 92 56 57 80...
The test-retest method is one way of establishing the reliability of a test. The test is...
The test-retest method is one way of establishing the reliability of a test. The test is administered, and then, at a later date, the same test is re-administered to the same individuals. The correlation coefficient is computed between the two sets of scores. The following test scores were obtained in a test-retest situation. (Round your answers to two decimal places.) First Score 75 87 60 75 98 80 68 84 47 72 Second Score 71 91 51 76 93 77...
have a java application need to create an application which is able to do some analysis...
have a java application need to create an application which is able to do some analysis on temperature data stored in a data file. You will be given the “temperatures.dat” data file which contains the data you must analyze. The analysis you’ll need to do is: Total number of data points Find coldest temperature Find warmest temperature Find average temperature Find the frequency of each temperature Find the most frequent temperature Find the least frequent temperature All classes must be...
Below represent scores on an exam, each entry one score for one student 40 99 59...
Below represent scores on an exam, each entry one score for one student 40 99 59 98 63 63 64 65 67 35 67 67 68 70 71 71 71 46 72 72 60 73 74 74 74 75 97 75 62 76 76 76 76 76 77 57 77 98 77 63 78 78 78 79 79 80 80 80 80 80 81 81 92 81 93 82 82 83 83 83 83 83 83 83 84 84 84...
Refer to the accompanying data set and construct a 95​% confidence interval estimate of the mean...
Refer to the accompanying data set and construct a 95​% confidence interval estimate of the mean pulse rate of adult​ females; then do the same for adult males. Compare the results. Males    Females 81           82 72           94 52           57 59           66 51           54 62           80 52           77 74           85 51           89 62           57 73           35 61           64 62           87 80           74 80           79 63           62 63           67 97           76 43           60 85           65 72           86 66           85 73           69 72          ...
TestScore 53 53 56 56 56 58 58 58 59 59 59 60 60 62 63...
TestScore 53 53 56 56 56 58 58 58 59 59 59 60 60 62 63 63 63 64 65 65 66 67 67 67 67 68 69 69 69 69 71 71 72 72 72 72 73 73 73 73 73 74 75 75 75 76 76 76 76 77 77 77 77 77 78 78 78 79 79 79 79 80 80 80 80 80 80 81 81 81 82 82 83 83 83 83 84 84 84...
Consider the below vector x, which you can copy and paste directly into Matlab. The vector...
Consider the below vector x, which you can copy and paste directly into Matlab. The vector contains the final grades for each student in a large linear algebra course. x = [61 52 63 58 66 92 64 55 76 60 70 78 76 73 45 63 97 70 100 76 50 64 42 100 67 81 81 59 68 62 72 99 66 76 81 59 47 84 67 75 63 86 73 44 51 69 48 74 61...
Question 1: Table 1 shows the number of customers visited by a salesman over an 80-week...
Question 1: Table 1 shows the number of customers visited by a salesman over an 80-week period. Table 1: Customers Visited Over an 80-Week Period 68 64 75 82 68 60 62 88 76 93 73 79 88 73 60 93 71 59 85 75 61 65 75 87 74 62 95 78 63 72 66 78 82 75 94 77 69 74 68 60 96 78 89 61 75 95 60 79 83 71 79 62 67 97 78...
The Test Scores for a Statistics course are given in the Excel below. The data (X1,...
The Test Scores for a Statistics course are given in the Excel below. The data (X1, X2, X3, X4) are for each student. X1 = score on exam #1 X2 = score on exam #2 X3 = score on exam #3 X4 = score on final exam Your professor wants to know if all tests are created equal. What is the F-Stat? EXAM1 EXAM2 EXAM3 FINAL 73 80 75 65.86667 93 88 93 80.16667 89 91 90 78 96 98...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT