was the result statistically signifigant

In the regression equation, ŷ = 2.164 + 1.3657x, and n = 6, the mean of x is 8.667, SSxx= 89.333 and Se= 3.44. A 95% confidence interval for the average of y when x=8 is ______. a) (9.13, 17.05) b) (2.75, 23.43) c) (10.31, 15.86) d) (3.56, 22.62) e) (12.09, 14.09)

How would you interpret a z score of ‐3.0?

In a survey, the sample consisted of 1087 adults who were parents of school-aged children. The sample was selected in a way that makes it reasonable to regard it as representative of the population of parents of school-aged children. One question on the survey asked respondents how much time (in hours) per month they spent volunteering at their children's school during the previous school year. The following summary statistics for time volunteered per month are given below. n = 1087 x = 5.5 median = 1

Which of the following formulas is correct for converting raw scores to z scores? Which of the following formulas is correct for converting raw scores to z scores? Z = X+M/SD Z = (X-M)/SD Z = (X+M)/SD Z = (X(SD))/M Z = (M-X)/SD

To investigate the tradeoff between time to work and time to sleep, the following equation is estimated: sleep 3,600+0.128totwrk -10.08educ+2.10age 6. (112.14) (0.016) n 700, R2 0.102 Standard errors are in the parentheses (1) Is either educ or age individually significant at the 5% level? Show your work (4.58) (1.35) (2) Dropping educ and age from the equation gives sleep 3,780-0.104totwrk (52.04) (0.012) 700, R2 0.099 n Are educ and age jointly significant in the original equation at the 5% level? Justify your answer

A researcher reports t(15) = +0.25, p > .05 for a repeated-measures research study. The mean sample difference score for the sample was M D = 1. Which of the following is the value for Cohen’s d? a. d = .12 b. d = 1.00 c. d = .25 d. d = .06

​An analysis of variance produces SSbetween = 40, SSwithin = 60, and an F-ratio with df = 2, 15. For this analysis, what is the F-ratio?

On a test you are presented with a z score of 1.702. How did you do in relation to the rest of the scores? Choose one Better than half the class The same score as the mean WORSE than half the class mot enough information 9

the F value associated with the between-subjects factor is 0.067. (Sig. - 0.797) Was the between-subjects factor significant? 1. Yes, p < .000 2. Yes, p < .001 3. Yes, p < .01 4. No, p = .07 5. No, p = .80 6. No, p < .05

The results of a one sample t test are reported as follows: T(24) = 1.70, p>.05. Based on these results how many participants were in the sample?

In a survey, the sample consisted of 1087 adults who were parents of school-aged children. The sample was selected in a way that makes it reasonable to regard it as representative of the population of parents of school-aged children. One question on the survey asked respondents how much time (in hours) per month they spent volunteering at their children's school during the previous school year. The following summary statistics for time volunteered per month are given below. n = 1087 x = 5.5 median = 1 In USE SALT (a) What does the fact that the mean is so much larger than the median tell you about the distribution of time spent volunteering per month? The fact that the mean is much greater than the median suggests that the distribution of times spent volunteering in the sample was negatively skewed. The fact that the mean is much less than the median suggests that the distribution of times spent volunteering in the sample was positively skewed. The fact that the mean is much greater...

d. There is a 30% chance that X is above what value? X= (Type an integer or decimal rounded to two decimal places as needed.)