A regression model involving 4 independent variables and a sample of 15 periods resulted in the following sum of squares: SSR = 165 SSE = 60 The test statistic from the information provided is _____.   a. 4.710     b. 6.875     c. 2.110

Referring to Table 2, the mean square for the factor filling time is____ 1). 0.9030 2). 0.4234 3). 0.4515 4). 0.2117

Question 2 How many subjects were examined based on the following: t(29) = 2.001, p < 0.05? 28. 29 30 31 Question 3 Another name for a dependent-samples t test is

A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement. Find the coefficient of variation for each of the two samples; then compare the variation. Systolic 117 128 158 94 158 120 114 138 124 1219 Diastolic 79 77 76 50 88 62 70 80 87 56 The coefficient of variation for the systolic measurements is %. (Type an integer or decimal rounded to one decimal place as needed.)

Given the following data, determine the Chi-Square obtained statistic:   a b c d 9 6 10 8 4 1 4 7

ch.8 question 11 sample You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 64%. You would like to be 98% confident that your estimate is within 4% of the true population proportion. How large of a sample size is required? Do not round mid-calculation.n =