Using a two-tailed test with Ī± = .05, a sample correlation of r = 0.355 for a sample of n = 30 individuals is large enough to conclude that there is a real correlation in the general population.
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- Alternative Hypothesis (H1): There is a real correlation in the general population (Ļ ā 0). Show moreā¦
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As we have noted in previous chapters, even a very small effect can be significant if the sample is large enough. Suppose, for example, that a researcher obtains a correlation of r = 0.60 for a sample of 10 participants. Is this sample sufficient to conclude that a significant correlation exists in the population? Use a two-tailed test with Ī± = 0.05 and round your answers to three decimal places for the following: tcritical = 2.365 The correlation is statistically significant. If the sample had n = 25 participants, is the correlation significant? Again, use a two-tailed test with Ī± = 0.05. Calculate the following and round your answers to three decimal places: tcritical = 3.365 The correlation is statistically significant.
Madhur L.
As we have noted in previous chapters, even a very small effect can be significant if the sample is large enough. Suppose, for example, that a researcher obtains a correlation of 0.60 for a sample of 10 participants. a) Is this sample sufficient to conclude that a significant correlation exists in the population? Use a two-tailed test with Ģ. b) If the sample had 25 participants, is the correlation significant? Again, use a two-tailed test with Ģ.
At a .05 significance level with a sample size of 30, find the critical value for the correlation coefficient
Maitreya E.
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