# Question

To appreciate the impact of large sample size on the value of x2, multiply each of the observed frequencies in the previous question by 10 to obtain the following:

Even though the sample size has increased by a factor of 10, the proportion of males (and females) who favor gun control remains the same as in the previous question. In both questions, gun control is favored by .67 of all males (from 40/ 60 5 400/ 600 5 .67) and by .75 of all females (from 30/ 40 5 300/ 400 5 .75).

(a) Using the .05 level of significance, again test the null hypothesis for gender and attitude toward gun control.

(b) Specify the approximate p-value for this test result.

(c) Given a significant x2 for the current analysis, estimate the effect size.

Even though the sample size has increased by a factor of 10, the proportion of males (and females) who favor gun control remains the same as in the previous question. In both questions, gun control is favored by .67 of all males (from 40/ 60 5 400/ 600 5 .67) and by .75 of all females (from 30/ 40 5 300/ 400 5 .75).

(a) Using the .05 level of significance, again test the null hypothesis for gender and attitude toward gun control.

(b) Specify the approximate p-value for this test result.

(c) Given a significant x2 for the current analysis, estimate the effect size.

## Answer to relevant Questions

The number of friends reported by Facebook users is summarized in the following frequency distribution: FRIENDS f 400 – above ...... 2 350 – 399...... 5 300 – 349....... 12 250 – 299....... 17 200 – 249....... ...Indicate whether each of the following distributions is positively or negatively skewed. The distribution of (a) Incomes of taxpayers has a mean of $ 48,000 and a median of $ 43,000 (b) GPAs for all students at some college ...For the normal distribution of burning times of electric light bulbs, with a mean equal to 1200 hours and a standard deviation equal to 120 hours, what burning time is identified with the (a) Upper 50 percent? (b) Lower 75 ...Randomly selected records of 140 convicted criminals reveal that their crimes were committed on the following days of the week: (a) Using the .01 level of significance, test the null hypothesis that in the underlying ...Use U rather than t to test the results in Review Question 14.11 on page 322.Post your question

0