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16.1.23-T Question Help A philanthropic organisation sent free mailing labels and greeting cards to a random...
A philanthropic organization sent free mailing labels and greeting cards to a random sample of 100,000...
A philanthropic organization sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 5160donations. (a) Give a 99% confidence interval for the true proportion of those from their entire mailing list who may donate. (b) A staff member thinks that the true rate is 4.9%. Given the confidence interval you found, do you find that rate plausible?
1. Determine the area under the standard normal curve that lies to the right of z...
1. Determine the area under the standard normal curve that lies to the right of z = -.22 z = .29 c = 1.05 and d = -.97 2. A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. If an applicant is randomly selected, find the probability of a rating that is between 200 and 275. Round your answer to four decimal places. 3. The...
This Question: 1 pt 6 of 10 (0 complete) ? This Quiz: 10 pts possible A...
This Question: 1 pt 6 of 10 (0 complete) ? This Quiz: 10 pts possible A philanthropic organization sent free mailing labels and greeting cards to andom sample o 100 000 potential dono s on their mailing list and eceived 5015 donations. They have had a contr tion rate o 5% in past campaigns, but a sa member hopes that the rate will be higher if they run this campaign as currently designed. Complete parts a through c beloww a)...
This Question: 1 pt 6 of 10 (0 complete) ? This Quiz: 10 pts possible A philanthropic organization sent free mailing labels and greeting cards to andom sample o 100 000 potential dono s on their mailing list and eceived 5015 donations. They have had a contr tion rate o 5% in past campaigns, but a sa member hopes that the rate will be higher if they run this campaign as currently designed. Complete parts a through c beloww a)...
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