O A. Walking Speed - X В. C. D. Direction of Travel Departure 253 Arrival (c) Do of peop Mean speed (feet per minute) Standard deviation 267 parting on 53 39 (feet per minute) Sample size State th 35 35 OA. Print Done c. הי יריי P2 H: Hy

The expression S(Xi) directs us to find the  sum of scores median  average of the scores  middle score

A survey was conducted among 68 patients admitted to a hospital cardiac unit during a two-week period. The data of the survey are shown below. Let B= the set of patients with high blood pressure. Let C= the set of patients with high cholesterol levels. Let S = the set of patients who smoke cigarettes. Answer parts (a)-(d) below. n(BNS) = 11 n(B n C) = 11 n(B ncns) = 6 n[(B nC) U (BNS) u (CNS)] = 20 n(B) = 30 n(C) = 28 n(S) = 31 ... (a) Find the number of these patients that had either high blood pressure or high cholesterol levels, but not both. The number of patients that had high blood pressure or high cholesterol levels, but not both, is 41 A

You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 150 men, and 80% own cats.You sample 190 women, and 55% own cats.Find p¯ (p-bar), as a decimal, rounded to two decimal places.

Night Owls proportion of MSU students who regularly sleep less than 8 hours each night is less than the value reported by the MSU psychologist. She randomly selects 215 students and asks them, "Do you regularly sleep less than 8 hours each night?" She finds that 77 of the 215 students answered "yes" to the question. A MSU psychologist reports that 40% of MSU students regularly sleep less than 8 hours each night. Cindy believes that the actual 1. Which one of the following statements about the number 40% is correct? A. It is a sample statistic. B. It is a standard error. C. It is a margin of error. D. It is a claimed parameter. 2. Choose the null and alternative hypotheses Cindy should use to test her theory. А. Но : р %3D 0.4, Нд : р+0.4 В. Но : р %3D 0.4, На : р 0.4 3. If you assume that the observations in the sample are independent, what is the smallest value the sample size could be to meet the conditions for this hypothesis test? OA. 28 В. 10 C. None of the above D. 20 Е. 77 OF.…

How do I compute this answer?

What is the p value for the following scenario: Out of 300 male inpatients, there are 195 that have a MCC and out of 450 female inpatients 205 have a MCC.

I need help with all of them plz.

You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats. You sample 110 men, and 25% own cats. You sample 150 women, and 85% own cats. Find p (p-bar), as a decimal, rounded to two decimal places.

You want to determine if there is a difference in the number of times statistics students get asked out on dates compared to biology students. You randomly survey four statistics students and four biology students. Data are listed on the table. Statistics                Biology  students                 studentsX                                 Y8                                144                                108                                 64                                10Conduct an independent t-test to see if there is a significant difference. (Be sure to complete all 4 steps.)