GLL insurance company often tracks life expectancy information to determine life insurance policies for its policyholders. Two years ago, the average life expectancy of all policyholders was 79.6 years with a standard deviation of 3.56 years. At this time, GLL wants to estimate the average life expectancy to within one year with 99% confidence. How many randomly selected recently paid policies would be needed to sample?

GLL insurance company often tracks life expectancy information to determine life insurance policies for its policyholders. Two years ago, the average life expectancy of all policyholders was 79.6 years with a standard deviation of 3.56 years. At this time, GLL wants to estimate the average life expectancy to within one year with 99% confidence. How many randomly selected recently paid policies would be needed to sample?

Name: GLL insurance company often tracks life expectancy information to det
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: GLL insurance company often tracks life expectancy information to determine life insurancepolicies for its policyholders. Two years ago, the average life expectancy of all policyholderswas 79.6 years with a standard deviation of 3.56 years. At this

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 29,000 miles and a standard deviation of 2100 miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires? Click to view page 1 of the table. Click to view page 2 of the table. Tires that wear out by miles will be replaced free of charge. (Round to the nearest mile as needed.)
If this 3-year-old boy grows up to be a man with a height at the same percentile, what will his height be? Use a population mean of 70 inches and a population standard deviation of 3 inches
Suppose a new drug is intended to improve walking distance in patients with Parkinson’s Disease. A researcher measures patients’ walking distance in feet before and after trying the drug for 9 weeks. What type of statistical test
According to a recent report the battery life for a new line of laptop computers has a mean of 9 hours with a standard deviation of 2.4 hours. If battery life is normally distributed what percentage of new laptops will last between 8 and 11 hours on a single charge?
A researcher would like to estimate the mean amount of money that a family spends to within $75. If the amount spent by a family is considered to be normally distributed with a standard deviation of $412, what sample size would be necessary to be 93% confident?
The Social Insight Test evaluates how accurately the subject appraises other people. From 500 people, scores were found to be normally distributed with a mean of 28 and a standard deviation of 6. About how many people got a score below 23?
A random sample of 47 cars in the drive-thru of a popular fast food restaurant revealed an average bill of $17.51 per car. The population standard deviation is $6.05. Estimate the mean bill for all cars from the drive thru with 91% confidence.
An analyst found that the average amount of money in bank accounts at his/her bank is $2,000 with a standard deviation of $150. What would be the variance?
Entrance exam scores at Cititon University are normally distributed with a mean of 552 and a standard deviation of 29. If scholarships are awarded to the top 10% of scores, what is the minimum score needed to guarantee a scholarship?
A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 35,000 miles and a standard deviation of 2100 miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires? Click to view page 1 of the table. Click to view page 2 of the table. Tires that wear out by miles will be replaced free of charge. (Round to the nearest mile as needed.)
A company wants to assess the average time it takes for customers to complete a particular task on their website. They collect the following data from a sample of 10 customers: 5, 6, 7, 8, 9, 10, 10, 11, 12, 13 minutes. Calculate the sample mean and standard deviation for this data.
Jessica, the owner of a medium-scale native handicrafts shop, knows from experience that the time needed to assemble a piece of handicraft is normally distributed with a mean of 130 minutes and a standard deviation of 15 minutes. Above how many minutes were the slowest 15% of the assembly times. Find the closest answer.