Question

In: Statistics and Probability

Paired t-test Execution For this question use the following values: n = 13,sD = 1.20, andd...

Paired t-test Execution

For this question use the following values: n = 13,sD = 1.20, andd = -1.01.Compute the upper limit of the 93% confidence interval on the differencebetween population means.

Group of answer choices

-0.955

-0.787

-0.507

-0.434

-0.348

-0.090

0.044

0.103

0.132

0.690

Solutions

Expert Solution

We have here for given example,              
              
Sample mean for difference=-1.01
Sample standard deviation for difference=1.2
Sample size=13
Degree of freedom =n-1=12
              
Level of significance =0.07  
              
t critical value (by using t table) =1.989  
  
Confidence interval upper limit for paired t test is              


=-0.348              
              

Upper limit for confidence interval is=   -0.348


Related Solutions

Use student-t to derive the following paired test set.seed(20) girls_height<- rnorm(50, mean = 160, sd =...
Use student-t to derive the following paired test set.seed(20) girls_height<- rnorm(50, mean = 160, sd = 30) boys_height<- rnorm(50, mean = 172, sd = 30) #------------------------------------------------------------- State the hypothesis for the paired-test of the mean of # girls' height and boys' height. Check the three assumptions before running the student t test # for the samples. You need to write and run the code, and # report the results.
In which of the following situations would it be appropriate to use a paired t-test to...
In which of the following situations would it be appropriate to use a paired t-test to analyze the data? Check all that apply. A researcher was interested in the differences in attitudes towards saving money and eliminating debt between couples who are engaged to be married. As part of a premarital counseling program, 45 engaged couples filled out a survey that assessed their attitudes towards financial matters such as their priorities for saving money and eliminating debt. The researcher compared...
For the following, indicate whether you should use a one sample t-test, paired t-test, or two...
For the following, indicate whether you should use a one sample t-test, paired t-test, or two sample t-test and whether you have chosen a one-sided or two-sided alternate hypothesis: A) Do macroeconomics students at Vanderbilt score significantly higher on the Math SAT than the national average? My Answer: One sample t-test, one tailed B) Do macroeconomics students at Vanderbilt score significantly higher on the Verbal SAT than the national average? My answer: One sample t-test, one tailed C) Report a...
1. Identify which test the scenario will use: independent samples t test, paired samples t test,...
1. Identify which test the scenario will use: independent samples t test, paired samples t test, chi square test for goodness of fit, chi square test for independence or chi square test for homogeneity. A. A researcher goes to the parking lot at a large grocery chain and observes whether each person is male or female and whether they return the cart to the correct spot before Chi leaving (yes or no). B. Amber Sanchez, a statistics student, collected data...
Answer the following questions using the data given in the table. Use the T-Test Paired Two...
Answer the following questions using the data given in the table. Use the T-Test Paired Two Sample for Means to arrive at the solutions to the questions below. Use an alpha value of 0.01 Home Appraiser 1 Appraiser 2 A $235,000 $228,000 B $210,000 $205,000 C $231,000 $219,000 D $242,000 $240,000 E $205,000 $198,000 F $230,000 $223,000 G $231,000 $227,000 H $210,000 $215,000 I $225,000 $222,000 J $249,000 $245,000 K $199,000 $201,000 1 What is the value for the test...
What is the difference between a Paired t-test and a Pooled t-test?
What is the difference between a Paired t-test and a Pooled t-test?
The t statistic for a test of ?0:?=13 ??:?>13 based on n = 17 observations has...
The t statistic for a test of ?0:?=13 ??:?>13 based on n = 17 observations has the value t = 1.72. (b) Using the appropriate table in your formula packet, bound the p-value as closely as possible: _____ < p-value < _____
What are the critical values of t for each of the following values of N and...
What are the critical values of t for each of the following values of N and alpha using a nondirectional hypothesis? N   a a. 12 0.05 b. 20 0.01 c. 2 0.05 d. 5 0.02 e. 19 0.01 Now using a directional hypothesis? N    a f. 13 0.025 g. 17 0.005 h. 8 0.05 i. 15 0.01 j. 10 0.05
Paired-/Related Samples T-test Use it to test whether there is a difference between the two conditions(note:...
Paired-/Related Samples T-test Use it to test whether there is a difference between the two conditions(note: conditions must be RELATED-participants provide in each condition). You are interested in the relationship satisfaction of young adults before and after they go off to college/university, which separates them from their sweetheart. You asked four couples to rate the satisfaction of their relationship (on a scale of 0-50) before leaving for school and then again after a semester. Here are the data: Pair Before...
Use Excel to test. For each paired difference, compute After – Before. In Data Analysis, t-Test:...
Use Excel to test. For each paired difference, compute After – Before. In Data Analysis, t-Test: Paired Two Sample for means, select the After data for Variable 1 Range. Note that the critical value output by Data Analysis for this test is always positive. In this problem, the sign of the critical value is negative corresponding to 1-tailed test with lower reject region and negative lower critical value.                Person   Before   After    1   176   164   ...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT