Is the difference between parents and grandparents on the importance of the role

Question

Is the difference between parents and grandparents on the importance of the role of a "friend" statistically significant? If yes, at what probability level? Grandparent Roles Chi-Square: I Exercise 55 The null hypothesis for a chi-square test asserts that a difference was created by randomm error. Like other significance tests, a null hypothesis is rejected when the probability that it is true i hsuareis a test of the significance of the differences among frequencies. Its symbol is Thus, for Statistical Guide is true is be statistically significant. The lower the probability, the more significant the difference. T instance, the 01 level is more significant than the 05 level low- -such as 05, 0,.001, or less. When a null hypothesis is rejected, the difference is decla tests, it is cus- square testsare also Note that if the frequencies are significantly different, the percentages based on them snificandly different. Also, note that in tables that present the results of chi-square tests, it is The them are also iomary to footnote only those differences that were declared to be statistically significant. of parents and grandparents were recruited.... A of 2i and 40 years, participated in this study... A Excerpt from the Research Article and grandpaeed in this study. Two independent (unrelated) sample groups of parents and grandparents were in age from 36 to 84 years (M= 64 years) defined as grandparents of any age, sex, or race who are and (c) living within a one-hour drive, or 50 miles, from their grandchil- The grandparent participants were more likely than young adult parents to rank the roles of otal of 105 young d and older gro total of 105 total of 105 middle-aged and older also participated in this study. This group is (a from their granchildrem; and (c) living within a one- 10S young adult parents, between the ages of 21 and 40 years, participated in this st rang is defi a) not serving as a primary caregiver to their grandchildren: (b) residing in a separate household religious guide (X, 34.1, p

Explanation / Answer

we build a contingency table for importance of role of friend

Null Hypothesis

The null hypothesis asserts the independence of the variables under consideration.

Chi Square = 5.6784

The difference between parents and grandparents on the importance of the role of a "friend" is statistically significant for p< 0.017

The excel sheet used for computation is in the following link:

https://drive.google.com/file/d/0B3dnoNdg6lAtNTRjWF9ualQ5TW8/view?usp=sharing

Parent Grandparent Important 0.68*105= 71 0.82*105 = 86 Not Important 34 19

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