sample of n = 16 scores produces a t statistic of t = 2.00. If the sample is used to measure effect size with r2, what value will be obtained for r2?
Q: A sample of n =16 scores produces a t statistic of t = 2.00. If the sample is used to measure effect…
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A sample of n = 16 scores produces a t statistic of t = 2.00. If the sample is used to measure effect size with r2, what value will be obtained for r2?
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- A sample of n = 16 scores produces a t statistic of t = 2.00. If the sample is used to measure effect size with r2, what value will be obtained for r2?Two samples, each with n = 9 scores, produce an independent-measures t statistic of t = 2.00. If the effect size is measured using r2, what is the value of r2?If the df value for a two tailed test with alpha =0.05 were to increase from df=5 to df=22,what would happen to the critical values for t?
- In a test of H0: µ=75 against HA: µ<75, a sample of size 450 produces Z = -1.19 for the value of the test statistic. Thus the p-value is approximately equal to:Assuming all other factors are held constant, if the df value for a two-tailed t-test with a = .05 were increased from df =6 to df = 20, what would happen to the critical values for t?If the value for a t-test is t= 4, then what would the Fvalue be if an ANOVA was used instead of a t-test? a. 2 b. 8 c. 16 d. Cannot be determined based on the information given
- If the test of H0: = 19 against Ha: ≠ 19 based on an SRS of 15 observations from a Normal populationproduces the statistic of t = –1.75. The P-value isA researcher conducts an experiment comparing two methods of teaching young children to read. An older method is compared with a newer one, and the mean performance of the new method was found to be greater than that of the older method The results are reported as follows: t(120) = 2.10, p = .04, (d =.34). a. Are the results statistically significant?In a test of H0:p=0.4 against Ha:p≠0.4, a sample of size 100 produces z=1.28 for the value of the test statistic. Thus the p-value of the test is approximately equal to?
- A random sample of 54 students from Cabrillo College are selected from a normal population with mu equal to 20 and sigma equal to 5. After a treatment is administered to the students, the researcher calculated the sample mean to be 21. Is there enough evidence to conclude that the treatment had an effect at the 5% significance level? In step three, can we use the Critical Value Method? (a)Don't know (b)Cannot Determine (c)No (d)YesA researcher conducted a t-test for independent samples to evaluate the mean difference between two treatment conditions and obtained t(48) = 4.00. What would be the computed F, if the outcomes of this study were evaluated by one-actor ANOVA for independent samples?Martin has found a correlation of r = .18 between the two variables of caffeine consumption and frontal lobe activity. This correlation is more likely to be statistically significant if: 1. increased level of confidence 2. increased an alpha level 0f 0.01 instead of 0.05 3. measure of caffeine consumption is categorical instead of continuous 4. used larger number of participants