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# 1) The class sizes for Jim's fall semester classes at XXX University are listed below. Class Ceramics Renaissance English Lit Ghost Hunting

1) The class sizes for Jim’s fall semester classes at XXX University are listed below. Class Time Period Class Sizes Ceramics 8 - 9 AM 22 Renaissance English Lit 9 - 11 AM 14 Ghost Hunting 1 - 2 PM 28 Statistics 3 - 4 PM 14 Find the three measures of center. Which measure of center would you most like to use for the above data set? Why? 2) You are interested in finding the standard deviation of trees at XXX tree farm. You take a sample eight trees and record their heights below. What is the standard deviation of the trees that you samples? Tree Height: (in feet) 4.1, 6.2, 5.5, 7.1, 6.3. 5.9, 7.5, 6.7 The mean of the sampled trees is 6.3 3) Assume that you figure the real population standard deviation for all of the trees at XXX is 3.2. Construct a 95% confidence interval of all of the trees if a sample of 36 trees has a mean of 6.4 feet. 4) Please classify the following data as either qualitative or quantitative and lift its level of measurement. The waist sizes of men’s jeans - The most ordered ice cream flavor at Dairy Serf - Total elevation at or below sea level - The number of miles on your car - Your friend’s favorite color - 5) Two high schools are competing in a track meet. The next event is the one hundred meter dash. The coach of the Speedyville Cheetahs has asked you to construct an interval
estimate of how much faster the opposing team’s sprint unit is than the Cheetahs’ sprinters. The Cheetahs’ coach tells you that five of his sprinters average 11.5 seconds in the 100 meter dash and that their times have a standard deviation of 0.15 seconds. He says that his runners’ times are normally distributed. The Cheetahs’ coach also scouted the other team, the Fleettown Rockets. He was able to observe six of their runners. The Rockets’ sprinters had an average time of 11.35 seconds with a standard deviation of 0.2 seconds. The Cheetahs’ coach believes that the Rockets’ times are normally distributed as well. Construct a 95% confidence interval the Coach to compare the means of the two teams’ sprint units! 6) You are picking up walnuts from a tree in a nearby park. Suddenly you become interested in estimating the mean weight of all of the walnuts in that park. Unfortunately you have only been able to find seven walnuts so far. Can you use the Central Limit Theorem to aid in your estimations? Why or why not? 7) Assume that the weights of coconuts are normally distributed with a mean weight of 17.6 pounds and a standard deviation of 1.2 pounds. If you are in Cabo Rico on spring break with your friends and a coconut falls on your head, what is the likelihood that the coconut weighs less than 16 pounds? 8) You are preparing to do an ANOVA test. You have the following sample sizes and sample means: Sample Size Sample Mean 15 64 20 68 14 59 16 63 What is the Grand Mean for this data? 9) Please draw a bar graph for the following data. Remember to include all necessary elements of a graph! Favorite Ice Cream Flavor Frequency Chocolate 5
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1) The class sizes for Jim’s fall semester classes at XXX University are listed below.
Class
Ceramics
Renaissance English Lit
Ghost Hunting
Statistics Time Period
8 - 9 AM
9 - 11 AM
1 - 2 PM
3 -...

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