The results from an independent-measures t hypothesis test are reported as "t(14) = 2.10, p > 0.05, two tails." For this test, the null hypothesis was rejected. True or False
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The results from an independent-measures t hypothesis test are reported as "t(14) = 2.10, p > 0.05, two tails." For this test, the null hypothesis was rejected.
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- a hypothesis test produces a t statistic of t=2.3. if the researcher is using a two tailed test with a=0.05 how large does the sample have to bw in order to reject the null hypothesis?A hypothesis test produces a t statistic of t = 2.30. If the researcher is using a two-tailed test with a = .05, how large does the sample have to be in order to reject the null hypothesis?Also, using α = .05, run a two-tail t-test for one sample to test Ho: µ=283 for the 2009 scores. Report the t-obt, df, and p-values. Would you reject the null hypothesis that the 2009 scores come from a population with average 283? If this is the case, does it come from a population from larger or smaller average?
- For the T-test of the single sample, does the GPA of a group of students who were considered gifted in primary school is higher than the university's mean GPA? How do you state your hypothesis and then how do you decide based on the t-test if we should reject the null hypothesis?A hypothesis test produces a t statistic of t=2.01.If the researcher is using a two tailed test with x=0.05,how large does the sample have to be in order to reject the null hypothesis?A researcher expects a treatment to increase the scores for individuals in a population. The treatment is evaluated using a one-tailed hypothesis test, and the test produces z = +2.40. Based on this result, which is the correct statistical decision
- Why is the null hypothesis for a dependent-samples t- test always μD=0 μD=0 ?Illustrate the null hypothesis for a correlated t test?A sample of n = 25 scores produces a t statistic of t = +2.052. If the researcher is conducting a single-sample two-tailed hypothesis test, which of the following is the correct statistical decision?
- A researcher is using a one-tailed hypothesis test with α = .01 to evaluate the effect of a treatment. If the critical/cut-off value is t = 2.479, how many individuals are in the sampleA researcher conducts a hypothesis test to evaluate the effect of a treatment that is expected to increase scores. The hypothesis test produces a z-score of z = 2.27. If the researcher is using a one-tailed test, what is the correct statistical decision?The test statistic of z = 0.85 is obtained when testing the claim that p > 0.2. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. Find the P-value. Using a significance level of α = 0.10, should we reject H0 or should we fail to reject H0?