Multiple Choice
A researcher asked a sample of dual career families about the percentage of the family budget contributed by the wife's job (Y) and the total number of children (X) .Pearson's r for this relationship is -0.34.Which of the following is an appropriate interpretation of these results?
A) For every dollar contributed by the wife,the number of children increases by .34.
B) For every additional child,the wife must work longer hours.
C) Every additional child lowers the economic wellbeing of the family.
D) As number of children increase,the percentage of the budget contributed by the wife decreases.
Correct Answer:
Verified
Correct Answer:
Verified
Q12: The direction of a relationship between variables
Q13: The slope (b)is an awkward measure of
Q14: A study of traffic safety show a
Q16: A researcher wants to measure the strength
Q17: For interval-ratio level variables,the scattergram is analogous
Q18: If the regression line showing the effect
Q23: In regression analysis, the symbol "a" stands
Q26: If we calculate an r of .60,
Q31: If we fail to reject the null
Q37: When working with interval-ratio data, the optimal