DF for a paired sample test are computed as a. n-1 b. n-2 c. it depends...
DF for a paired sample test are computed as
a. n-1
b. n-2
c. it depends on whether the researcher is running a one tailed or
a two tailed test
Homework Answers
In paired sample test same sample is considered before the treatment and after the treatment .
So
DF=n-1
Correct option is a. n-1
Add Answer to:
DF for a paired sample test are computed as a. n-1 b. n-2 c. it depends...
3 and 4 3. Indicate df for the following statistical tests: a. One sample t test...
3 and 4
3. Indicate df for the following statistical tests: a. One sample t test b. Independent samples t test (same N's in both groups) c. Independent samples t test (different N's) d. Paired samples t test e. Testing whether correlation coefficient is different from 0. 4. Assume you have two independent samples that you wish to compare. One sample has an N of 14 and the other has an N of 10. For a = .05, two tailed...
Look at the table for the Paired samples test to find your t calculated, df, and...
Look at the table for the Paired samples test to find your t
calculated, df, and significance. Remember that significance level
will appear in the Sig (2-tailed) column. Any value that is smaller
than .05 will be significant at the .05 level or higher. In a
sentence describe the results and report them in APA style,
including r2 and evaluation (you will need to calculate
r2 by hand).
3. What type of error in hypothesis testing is possible given
the...
Statistics for math test scores of two Grade 3 classes were computed. Class 1 n: 21...
Statistics for math test scores of two Grade 3 classes were computed. Class 1 n: 21 mean: 72 variance: 4.5 Class 2 n: 25 mean: 65 variance: 7.3 The principal wants to conduct a t-test (=0.05) to compare performance of these two classes. Which of the following is true? A. This is a one-tailed test with equal variances B. This is a two-tailed test with unequal variances C. This is a one-tailed test with unequal variances D. This is a...
If a paired-samples t-test and an independent samples t-test both have df = 16, which experiment...
If a paired-samples t-test and an independent samples t-test both have df = 16, which experiment used more participants? They both used the same number of participants (n = 18). (A) (B) They both used the same number of participants (n = 17). (C) The paired-samples t-test. (D) The independent samples t-test.
and 2. The variance of a sample depends a. the mean of the sample; the sample...
and 2. The variance of a sample depends a. the mean of the sample; the sample degrees of freedom b. the mean of the sample; the sum of squares for the sample c. the sum of squares for the sample; the sample degrees of freedom on 3. With an independent samples test, a researcher can draw conclusions about a. a comparison of two population means b. a comparison of two population variances c. the importance of sample size to the...
1. What is the degree of freedom, df of Chi2 for Independence, if each nominal variable...
1. What is the degree of freedom, df of Chi2 for Independence, if each nominal variable consists of 4 categories? A. df = 2 B. df = 8 C. df = 7 D. df = 4 E. df = 9 F. df = 6 2. A researcher used Chi2 test for Goodness of Fit to test whether there is any difference in preferences for brands of six soft drinks. If the study uses a sample of n = 180 participants,...
Complete the problem below on conducting one sample t-test using the steps in hypothesis testing. A...
Complete the problem below on conducting one sample t-test using the steps in hypothesis testing. A researcher in interested in whether students who are musicians have higher intelligence test scores than students in the general population. The mean for the general population is 100. The researcher selects 30 musicians from local high schools and gives them an intelligence test, with a mean of 105. SS = 725 for the sample. m = _______ M = _________ n = _______ s2...
Now suppose a larger sample (30 pairs vs 10 pairs) was collected and a paired t test was used to analyze the data. The...
Now suppose a larger sample (30 pairs vs 10 pairs) was collected and a paired t test was used to analyze the data. The output is shown below. Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1 Female salaries 6773.33 30 782.099 142.791 Male salaries 7213.33 30 875.227 159.794 Paired Samples Correlations N Correlation Sig. Pair 1 Female salaries & Male salaries 30 .881 .000 Paired Samples Test Paired Differences t df Sig. (2-tailed) Mean Std. Deviation...
A researcher in interested in whether students who are musicians have higher intelligence test sc...
A researcher in interested in whether students who are musicians have higher intelligence test scores than students in the general population. The mean for the general population is 100. The researcher selects musicians from local high schools and gives them an intelligence test, with a mean of 105. SS 725 for the 2. 30 sample Null Hypothesis (Ho): μ State in words: Alternative Hypothesis (Ha): μ > State in words: df= t critical value (with α : .05): One-tailed or...
c. Run a two-sample paired t-test for means to test your hypothesis, using a confidence level...
c. Run a two-sample paired t-test for means to test your hypothesis, using a confidence level of 95%. To show whether it is a one-tail test or a two-tail test, highlight the significant values in the Excel output, including your p-value, critical t, and t stat. and write a sentence or two to interpret the results. should the null hypothesis be rejected? In EXCEL PLEASE TABLE C9-2: Wife and Husband Feedback Scores on 1-7 Scale + Same Day or Not...
3 and 4
3. Indicate df for the following statistical tests: a. One sample t test b. Independent samples t test (same N's in both groups) c. Independent samples t test (different N's) d. Paired samples t test e. Testing whether correlation coefficient is different from 0. 4. Assume you have two independent samples that you wish to compare. One sample has an N of 14 and the other has an N of 10. For a = .05, two tailed...
Look at the table for the Paired samples test to find your t
calculated, df, and significance. Remember that significance level
will appear in the Sig (2-tailed) column. Any value that is smaller
than .05 will be significant at the .05 level or higher. In a
sentence describe the results and report them in APA style,
including r2 and evaluation (you will need to calculate
r2 by hand).
3. What type of error in hypothesis testing is possible given
the...
and 2. The variance of a sample depends a. the mean of the sample; the sample degrees of freedom b. the mean of the sample; the sum of squares for the sample c. the sum of squares for the sample; the sample degrees of freedom on 3. With an independent samples test, a researcher can draw conclusions about a. a comparison of two population means b. a comparison of two population variances c. the importance of sample size to the...
A researcher in interested in whether students who are musicians have higher intelligence test scores than students in the general population. The mean for the general population is 100. The researcher selects musicians from local high schools and gives them an intelligence test, with a mean of 105. SS 725 for the 2. 30 sample Null Hypothesis (Ho): μ State in words: Alternative Hypothesis (Ha): μ > State in words: df= t critical value (with α : .05): One-tailed or...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago