Homework Answers
Correct option:
D. It's a liberal estimate that gives a relatively small P - value when the sample sizes are different
EXPLANATION:
Using degrees of freedom = min (n1 - 1, n2 - 1) gives a conservative result. It is smaller than the true value.
Add Answer to:
Which of the following is true of the degrees of freedom, k, if you find them by taking the small...
9. For each of the following calculated t-values and sample sizes, indicate the degrees of freedom...
9. For each of the following calculated t-values and sample sizes, indicate the degrees of freedom and whether you should reject or not reject the null hypothesis (if you reject Ho, indicate whether it is at the .05 or .01 significance level). Conduct each of these t-tests using a two-tailed hypothesis. a. t = +2.18 ni = 5 n2 = 5 b. t= -2.05 n1 = 12 n2 = 10 c. t = -2.18 n = 15 n2 = 15...
Determine if the following statements are true or false, and explain your reasoning for statements you...
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Hello i need help answering these questions thank you. "When the degrees of freedom are small(low),...
Hello i need help answering these questions thank you.
"When the degrees of freedom are small(low), larger t-ratios are required to reject null." O True False QUESTION 12 Always, if Beta = 0.12, Power = 0.88. True False QUESTION 13 "When events are mutually exclusive, P (A and B) = 0." True False QUESTION 14 "If the same experimental subjects are given each of the two treatments, the experiment has a(n):" single sample design. independent subjects design one tail test...
Hello i need help answering these questions thank you. "When the degrees of freedom are small(low),...
Hello i need help answering these questions thank you.
"When the degrees of freedom are small(low), larger t-ratios are required to reject null." O True False QUESTION 12 Always, if Beta = 0.12, Power = 0.88. True False QUESTION 13 "When events are mutually exclusive, P (A and B) = 0." True False QUESTION 14 "If the same experimental subjects are given each of the two treatments, the experiment has a(n):" single sample design. independent subjects design one tail test...
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In this problem, assume that the distribution of differences approximately normal Notes For degrees of freedom...
In this problem, assume that the distribution of differences approximately normal Notes For degrees of freedom dl. not in the Student's situations, this choice of I may increase the value by a mall amount and therefore produce a slightly more conservative answer table, use the desest of that is smaller. In some The artifact frequency for an excavation of a kiva in Bandelier National Monument gave the following information Stratum Flaked Stone Tools Nonfiaked Stone Tools Does this information indicate...
For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose sy...
For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose symbol is )? O The variance across all the data values when both samples are pooled together O A weighted average of the two sample variances (weighted by the sample sizes) O The difference between the standard deviations of the two samples O An estimate of the standard distance between the difference in sample means (M, - M2) and the difference...
Given X, and x, distributions that are normal or approximately normal with unknown o, and on,...
Given X, and x, distributions that are normal or approximately normal with unknown o, and on, the value of t corresponding to X, - X, has a distribution that is approximated by a Student's t distribution. We use the convention that the degrees of freedom is approximately the smaller of n - 1 and n, - 1. However, a more accurate estimate for the appropriate degrees of freedom is given by Satterthwaite's formula: 2 2 xn2 522 +$22) d.f. z...
You may need to use the appropriate technology to answer this question. Consider the following hypothesis...
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9. For each of the following calculated t-values and sample sizes, indicate the degrees of freedom and whether you should reject or not reject the null hypothesis (if you reject Ho, indicate whether it is at the .05 or .01 significance level). Conduct each of these t-tests using a two-tailed hypothesis. a. t = +2.18 ni = 5 n2 = 5 b. t= -2.05 n1 = 12 n2 = 10 c. t = -2.18 n = 15 n2 = 15...
Hello i need help answering these questions thank you.
"When the degrees of freedom are small(low), larger t-ratios are required to reject null." O True False QUESTION 12 Always, if Beta = 0.12, Power = 0.88. True False QUESTION 13 "When events are mutually exclusive, P (A and B) = 0." True False QUESTION 14 "If the same experimental subjects are given each of the two treatments, the experiment has a(n):" single sample design. independent subjects design one tail test...
Hello i need help answering these questions thank you.
"When the degrees of freedom are small(low), larger t-ratios are required to reject null." O True False QUESTION 12 Always, if Beta = 0.12, Power = 0.88. True False QUESTION 13 "When events are mutually exclusive, P (A and B) = 0." True False QUESTION 14 "If the same experimental subjects are given each of the two treatments, the experiment has a(n):" single sample design. independent subjects design one tail test...
In this problem, assume that the distribution of differences approximately normal Notes For degrees of freedom dl. not in the Student's situations, this choice of I may increase the value by a mall amount and therefore produce a slightly more conservative answer table, use the desest of that is smaller. In some The artifact frequency for an excavation of a kiva in Bandelier National Monument gave the following information Stratum Flaked Stone Tools Nonfiaked Stone Tools Does this information indicate...
For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose symbol is )? O The variance across all the data values when both samples are pooled together O A weighted average of the two sample variances (weighted by the sample sizes) O The difference between the standard deviations of the two samples O An estimate of the standard distance between the difference in sample means (M, - M2) and the difference...
Given X, and x, distributions that are normal or approximately normal with unknown o, and on, the value of t corresponding to X, - X, has a distribution that is approximated by a Student's t distribution. We use the convention that the degrees of freedom is approximately the smaller of n - 1 and n, - 1. However, a more accurate estimate for the appropriate degrees of freedom is given by Satterthwaite's formula: 2 2 xn2 522 +$22) d.f. z...
You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. The following results are from independent samples taken from two populations assuming the variances are unequal Sample 1 Sample 2 n1-352 x1-13.6x2-10.1 s, 5.5 s = 8.1 n2-40 (a) What is the value of the test statistic? (Use X1-x2. Round your answer to three decimal places.) (b) What is the degrees of freedom for the t distribution? (Round your answer down to the...
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