# Question

In a classic study, Milgram et al. “ lost” stamped envelopes with fictitious addresses (Medical Research Association, Personal Address, Friends of Communist Party, and Friends of Nazi Party).* One hundred letters with each address were distributed among four locations ( shops, cars, streets, and phone booths) in New Haven Connecticut, with the following results:

(a) Using the .05 level of significance, test the null hypothesis that address does not matter in the underlying population.

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

(c) Assuming x2 is significant, estimate the strength of this relationship.

(d) How might these results be reported in the literature?

(e) Collapse the original 4 × 2 table to a 2 × 2 table by combining the results for the two neutral addresses and for the two inflammatory addresses. Calculate the odds ratio for returned letters.

(a) Using the .05 level of significance, test the null hypothesis that address does not matter in the underlying population.

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

(c) Assuming x2 is significant, estimate the strength of this relationship.

(d) How might these results be reported in the literature?

(e) Collapse the original 4 × 2 table to a 2 × 2 table by combining the results for the two neutral addresses and for the two inflammatory addresses. Calculate the odds ratio for returned letters.

## Answer to relevant Questions

Indicate whether each of the following statements specify descriptive statistics ( because it describes sets of actual observations) or inferential statistics ( because it generalizes beyond sets of actual observations). (a) ...The mean serves as the balance point for any distribution because the sum of all scores, expressed as positive and negative distances from the mean, always equals zero. (a) Show that the mean possesses this property for the ...Scores on the Wechsler Adult Intelligence Scale (WAIS) approximate a normal curve with a mean of 100 and a standard deviation of 15. What proportion of IQ scores are (a) Above Kristen’s 125? (b) Below 82? (c) Within 9 ...Test the null hypothesis at the .01 level of significance that the distribution of blood types for college students complies with the proportions described in the blood bank bulletin, namely, .44 for 0, .41 for A, .10 for B, ...A group of high-risk automobile drivers (with three moving violations in one year) are required, according to random assignment, either to attend a traffic school or to perform supervised volunteer work. During the ...Post your question

0