Twenty-two different video games showing violence were observed. The duration times of violence (in seconds) were recorded. When using this sample for at test of the claim that the population mean is greater than 84 sec, what does df denote, and what is its value? What does df denote? O A. The sample standard deviation O B. The sample size C. The number of degrees of freedom D. The test statistic The value of df is. (Type an integer or a decimal. Do not round.)

Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.05 to test for a difference between the weights of discarded paper (in pounds) and weights of discarded plastic (in pounds). In this example, Hd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the weight of discarded paper minus the weight of discarded plastic for a household. What are the null and alternative hypotheses for the hypothesis test? OA. Ho: Hd #0 H₁: Hd>0 O C. Ho: Hd #0 H₁: Hd=0 Identify the test statistic. t= (Round to two decimal places as needed.) B. Ho: Hd=0 H₁: Hd #0 O D. Ho: Hd = 0 H₁: Hd <0 More Info Household Paper 16.39 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 POTBRANN~~~~~~~ 7.57 11.42 6.44 20.12 2.41 6.05 2.80 13.61 13.05 17.65 8.72 6.16 7.72 7.98 6.38 6.67 6.98 29 11.08 5.86…

forD, E, and F I have the following and want to see if correct:D=0.9579 E=14 F= var(x)=4.2 std deviation= 2.05

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Consider the data from the Anthropology 105 class.  The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?

Listed below are the numbers of hurricanes that occurred in each year in a certain region. The data are listed in order by year. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. What important feature of the data is not revealed by any of the measures of variation? 8 2 7 2 The range of the sample data is (Round to one decimal place as needed.) The standard deviation of the sample data is (Round to one decimal place as needed.) 3 14 12 6 The variance of the sample data is (Round to one decimal place as needed.) What important feature of the data is not revealed through the different measures of variation? (...) 17 1 15 10 O A. The measures of variation reveal no information about the scale of the data. B. The measures of variation reveal nothing about how the numbers of hurricanes are spread. O C. The measures of variation reveal nothing about the pattern over time. O D. The measures of variation do not reveal the…

A population has a mean μ = 82 and a standard deviation o = 16. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 64. H = (Simplify your answer.) ...

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Use the output below to determine if there is a significant difference in the hour spent emailing between the two group if T0 =0.290

What would the p-value be?