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You, as an owner of an insurance company have been worried about the increasing age of your policy holder base. You want to determine if the new advertising campaign has had the desired effect of attracting more younger customers. You have taken a sample of ten new policies and have found the following ages:
32 22 24 27 27 33 28 23 24 21
a) Determine the mean, median and mode of those data. Make sure you show your hand computeed work
b) Is there any indication from this group of data that the new policy holder may lean toward younger ages?
Find out a 95 percent confidence interval for population mean.
What is the probability that the next customer will request extra unleaded gas and fill the tank (A union B)?
Determine the probability, using binomial distribution, of obtaining 4 or more nonconforming units when sampling 30 computers from batch known to be 10% nonconforming.
There are three versions of a board game released - version 1, version 2, and version 3. The versions are distributed equally and evenly among all potential sellers of board games.
Commonwealth Edison wants to identify its heaviest users, which are those that are in the top 6% of electric consumption. How many kilowatt hours in January would qualify for the heavy user classification?
A furniture store claims that a specially ordered product will take, on average, mean= 35 days (5 weeks) to arrive. The standard deviation of these waiting times is 5 days.
the maximum point total for the quarter was 200. The point totals for the 10 students are given in the stemplot below. For the density curve displayed below, which of the following is true?
Standard deviation was increased to 40, determine the overall effect on their society? Would this change be a good thing?
Can we conclude a difference in means? YES or NO (circle one)
Examining more than one independent variable. Would using several t-tests be appropriate test to use? If not, what would appropriate test be and why?
Is there meaningful relationship between grades and SAT scores? If student scores 450 on the SAT, what do youbelieve his or her GPA will be?
Find the probability of getting a queen and a spade.
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