The average number of cavities that thirty-year-old Americans have had in their lifetimes is 7.  Do twenty-year-olds have a different number of cavities? The data show the results of a survey of 11 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 4, 8, 5, 7, 7, 4, 8, 5, 4, 4, 6 H0=? H1=? The test statistic    = ? (please show your answer to 4 decimal places.) The p-value = ? (Please show your answer to 5 decimal places.)

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Q: The average final exam score for the statistics course is 75%. A professor wants to see if the…

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Q: The average final exam score for the statistics course is 79%. A professor wants to see if the…

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A: Part 4)  P-value decision rule is as follows; If p value  ≤ significance level , then we reject null…

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A: From the given data: x¯=∑xn=620015=413.33s=16.6548 n=15   a) For this study, we should use…

Q: was calculated. The pro pling distribution of the

A: p1 = 0.25 p2 =0.22 n1 = 100 n2 = 100

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Q: The average final exam score for the statistics course is 75%. A professor wants to see if the…

A: 1. For this study, we should use t-test for a population mean.

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Q: Assume that a vertical line is drawn through a normal distribution at each of the following z-score…

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Q: For this study, we should use    (t-test for a population mean,  z-test for a population proportion)…

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Q: The average final exam score for the statistics course is 74%. A professor wants to see if the…

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Q: The average final exam score for the statistics course is 74%. A professor wants to see if the…

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Q: Q 600- 400- 200- 10 15 Stay (days) # of Female Patients

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