You may need to use the appropriate appendix table or technology to answer this question. A market research rm conducts telephone surveys with a 40% historical response rate. What is the probability that in a new sample of 400 telephone numbers, at least 150 individuals will cooperate and respond to the questions? In other words, what is the probability that the sample proportion will be at least E = 0.375? (Round your 400 answer to four decimal places.) E You may need to use the appropriate appendix table or technology to answer this question. Lon' Jeffrey is a successful sales representative for a major publisher of college textbooks. Historically, Lori obtains a book adoption on 36% of her sales calls. Viewing her sales calls for one month as a sample of all possible sales calls, assume that a statistical analysis of the data yields a standard error of the proportion of [1.08. (a) How large was the sample used in this analysis? That is, how many sales calls did Lori make during the month? (b) Let 3 indicate the sample proportion of book adoptions obtained during the month. Show the sampling distribution ofp. I I I I ' 0.16 0.08 0 0.03 0.16 0.2 0.28 a 'ul I I I 0'36 0'44 0'52 71.64 70.64 0.36 1.36 2.36 0 (DO (DO CD \"til I I I 0.08 0 0.08 0. 1 6 0.24 O (D (c) Using the sampling distribution of E, compute the probability that Lori will obtain book adoptions on 26% or more of her sales calls during a oneamonth period. (Round your answer to four decimal places.) :I You may need to use the appropriate appendix table or technology to answer this question. The proportion of individuals insured by the AlliDriver Automobile Insurance Company who received at least one traffic ticket during a fiveiyear period is 0.15. (a) Show the sampling distribution of; if a random sample of 160 insured individuals is used to estimate the proportion having received at least one ticket. 0.09 0.12 0.15 0.13 0.21 '1-35 '0-35 0-15 1-15 2-15 -0.03 o 0.03 'Ul 0.06 0.03 0 0.03 0.06 O G) (b) What is the probability that the sample proportion will be within 10.03 of the population proportion? (Round your answer to four decimal places.) E 0.06 0.09 'UI