Question

9 A study compared the proportions of young women and men who use Instagram Out of 537 women 328 used instagram, whereas out of t32 men, 234 uMd the Mrvee. Find 95% ne interval the dierence betwern the proportions of men and wosnen who use Instagram A. 09 to 25 B. 10 to 24 C. 11 to 23 D. .12 to 22 10 As a result of the computation of a confidnice interval with a 90 % conflmeerm, ik mpurat,that the proportion of American tamiles that own more than one car i, 12.4% with margin of error of姝In heht of this, we are 90% onfident that the largest the otual proportion of.uth families can be- A. 14.4% B. 12.6% C. 12.42% D. 16.4%

Answer 1

ans 9 )

Sample X N Sample p
1 328 537 0.610801
2 234 532 0.439850

Difference = p (1) - p (2)
Estimate for difference: 0.170951
90% CI for difference: (0.121446, 0.220456)

option (D) is correct

ans 10)