Mathematics, 22.08.2019 20:20 ayoismeisalex
The correlation between two variables is +0.8 for a sample of 10 observations. we wish to show there is a positive relationship between the two variables. which of the following is a correct statement of the null hypothesis and the alternate hypothesis (h0 = null hypothesis, ha = alternative hypothesis, and p = population correlation coefficient)?
Answers: 3
Mathematics, 21.06.2019 18:20
17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.
Answers: 2
Mathematics, 21.06.2019 18:30
Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.
Answers: 1
Mathematics, 21.06.2019 18:40
This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.
Answers: 2
Mathematics, 21.06.2019 20:30
At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.
Answers: 1
The correlation between two variables is +0.8 for a sample of 10 observations. we wish to show there...
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