Long answer question answers Flashcards
A TV channel has received many complaints after showing a controversial documentary. They are interested to see whether there is an association between the gender and country of birth of those who complained. How many complaints were received?
a)417 b)265 c)690 d)685
d)685
Look at Levene’s Test of for Equality of Variances. What can you conclude?
a) p > .05 so equality of variances between the groups can be assumed
b) p < .05 so equality of variances between the groups can be assumed
c) We cannot say anything about equality of variances between the groups from this table.
d) p > .05 so equality of variances between the groups can not be assumed
H
a) p > .05 so equality of variances between the groups can be assumed
Using the data provided above, please use the below output to obtain the regression equation for predicting scores on systolic blood pressure from scores on job satisfaction. (IV=Job satisfaction; DV=Systolic BP). a) Y = 175.42 + (-1.12X) b) Y=-1.12 + (175.42X) c) Y=18.86 + 175.42(X) d) Y= 175.42 = (-4.52X)
a) Y = 175.42 + (-1.12X)
What is the correlation between job satisfaction and systolic blood pressure
a) r(9) = -.85, p
d) r(8) = -.85, p
Job satisfaction also explained a significant proportion of variance in systolic blood pressure,
a) R2=.68,F(1,9)=20.47,p=.002. b) R2=.85,F(1,8)=20.47,p=.002. c) R2=.72,F(1,8)=20.47,p=.002. d) R2 = .72, F(1, 9) = 2398.61, p = .002.
c) R2=.72,F(1,8)=20.47,p=.002.
A company which to investigate whether the number of sick days taken by their employees significantly differs based on the departmental manager. An unrelated ANOVA is conducted. Which of the following is true?
Adam only significantly differs from Frank
Adam only significantly differs from Frank
A student is interested in whether people who earn over 100K a year are happier than people who earn less than 100K per year. They obtain happiness ratings from a sample and conduct an unrelated t test. Which of the following is true?
None of the above
None of the above
A TV channel has received many complaints after showing a controversial documentary. They are interested to see whether there is an association between the gender and country of birth of those who complained. What is the Pearson Chi square value?
2.344
2.344
A student records the mood of all her fellow residents in the morning, afternoon and evening. If a significant result is found, what test should she conduct to reveal where specific differences lie?
Post hoc tests such as Bonferroni
Post hoc tests such as Bonferroni
What is the regression equation for the prediction of variable B using A
B= 0.68(Variable A) + 5.616
B= 0.68(Variable A) + 5.616
A student is interested in whether people who earn over 100K a year are happier than people who earn less than 100K per year. They obtain happiness ratings from a sample and conduct an unrelated t test. Which of the following conclusions can be made based on the results?
People earning > 100k were found to be happier but the differences was not statistically significant
People earning > 100k were found to be happier but the differences was not statistically significant
A TV channel has received many complaints after showing a controversial documentary. They are interested to see whether there is an association between the gender and country of birth of those who complained. How many complaints were received?
685
685
A student records the mood of all of her fellow hall residents in the morning, afternoon, evening. Which of the following can be conducted?
Mood significantly differed during the day of 5% level
Mood significantly differed during the day of 5% level
An airline company records passenger’s levels of fear of flying before and after an educational programme. Based on the t test which of the following is true?
The educational programme did significantly decrease the level of fear experienced
The educational programme did significantly decrease the level of fear experienced
How much variance in variable B can be accounted for by Variable A
1%
1%
