section 7.1

Question 8

Use the sample data and confidence level given below to complete parts? (a) through? (d).

A research institute poll asked respondents if they felt vulnerable to identity theft. In the? poll, n=1086 and x=557 who said? "yes." Use a 99% confidence level.

View a table of z scores.

\fPOSITIVE z Scores Cumulative Area from the LEFT 5:50 41 5319 5160 5199 .5753 5030 ST14 5417 8141 5394 SHO 6517 04 6217 7190 7357 7427 7794 7853 7704 7938 8315 4159 MPI 10 4531 B413 6749 3131 WI12 14 1.5 1.6 1.8 SP44 9767 2.0 8972 21 21 2.5 2.8POSITIVE z Scores Cumulative Area from the LEFT 5319 5357 5238 5279 5675 5714 4753 5000 5040 5080 $120 4517 6141 0.2 0.N 539 5478 6517 0.2 STRO 5871 5131 6879 0.4 6179 6554 7190 3224 05 6750 7549 10.6 6915 7257 7291 7324 7852 7671 8133 8340 8365 4380 8577 8599 10 8430 LI 8997 9015 12 9177 13 1.4 1.5 9357 17 9706 19 20 21 2.2 23 25 27 1.50 indo 350 and LE