Perform a chi square test of the independent on the following data given alpha = 0.05 and the claim is dependent Red. Blue. Green. orange Year. 2018 923. 258. 196. 68 2019. 922. 289. 149. 116 Find Step1 Step 2 Step 3 Step 4
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- Dr. Stevenson reported the following in a journal: “F (4, 106) = 10.09, p = .04.” Should Dr. Stevenson state that there are significant differences among the variable means at a .01 alpha level?CONSIDER that the data is CORRELATED use alpha .05. Provide the following: 1. CI of the F value 2. Statistical InterpretationFind Pearson’s r for the following data, and then test the null hypothesis that the correlation coefficient is equal to zero. Use a Type I error probability of 0.05 .
- Dr. Romanoff reported the following in a journal: “F (5, 106) = 10.09, p = .04.” Should Dr. Romanoff state that there are significant differences among the variable means at a .05 alpha level?Given the following data and using Jamovi, test (at an alpha of 0.05) whether type of music influences heart rate (measured in beats per minute, bpm). Participant Rock Classical Heavy Metal ROW MEANS = 1 70 64 90 74.67 2 78 69 85 77.33 3 80 72 67 73 4 82 65 100 82.33 5 81 67 120 89.33 6 80 58 98 78.67 GROUP MEANS = 78.5 65.83 93.33 Total mean = 79.22 Null (H0) and alternative (Ha) hypotheses:______________________________________________________________________________________________________________________________________________ What are your degrees of freedom for group (type of music)? _________ What are your degrees of freedom for error (within-subjects)? _________Q1. An anthropologist wants to collect data to determine whether the two different cultural groups that occupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights of adult females are as follows Do these samples constitute enough evidence to reject the null hypothesis that the heights of the two groups the same? Set alpha to .05.
- You obtain a t comp of .975 in a two sample independent t test with alpha at .05. Is it significant?Use the following summary to answer the items that follow: Students in the sleep treatment group have higher exam scores than those in the general student population, z = 2.78, p < .01 What was the alpha value used for the test? What was the decision for this test?A sample of 12 radon detectors of a certain type was selected, and each was exposed to 100 pCi/L of radon. The resulting readings were as follows: 104.3 89.6 89.9 95.6 95.2 90.0 98.8 103.7 98.3 106.4 102.0 91.1 a)Does this data suggest that the population mean reading under these conditions differs from 100? State and test the appropriate hypotheses using =.05. b) Suppose that prior to the experiment, a value of teta=7.5 had been assumed. How many determinations would then have been appropriate to obtain beta=.10 for the alternative u=95 ?