Kevin Horn is the national sales manager for National Textbooks, Inc. He has a sales staff of 40 who visit college professors all over the United States. Each Saturday morning he requires his sales staff to send him a report. This report includes, among other things, the number of professors visited during the previous week. Listed below, ordered from smallest to largest, are the number of visits last week.

1. Determine the median number of calls.
2. Determine the first and third quartiles.
3. Determine the first decile and the ninth decile.
4. Determine the 33rd percentile
A study is made by the recording industry in the United States of the number of music CDs owned by senior citizens and young adults. The information is reported below.
Seniors
28 35 41 48 52 81 97 98 98 99
118 132 133 140 145 147 153 158 162 174
177 180 180 187 188

1. Find the median and the first and third quartiles for the number of CDs owned by senior citizens. Develop a box plot for the information.
2. Find the median and the first and third quartiles for the number of CDs owned by young adults. Develop a box plot for the information.
3. Compare the number of CDs owned by the two groups.

Solution Summary

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I have do answer the questions below, using different numbers can u answer them with those number so that I can answer mine. Please elaborate on the last set of questions, the begining questions 1-11 I understand, but I still need you to answer. so that can can make sure I'm doing this right
Given the following set of data

1. Ten observations of X are
67 6 7 35 78 28 74 5 9 37
a) Find the order statistics
b) Find the medianand 80th percentile of the sample
c) Determine the first and third quartiles of the sample
2. Let Y1

See the attached files.
Also, please see the formula sheet and standard normal distribution table to be used.
Only use a scientific or graphing calculator (Excel does not help me) and please show all working out.
Question 1
The following data set represents the oxygen uptake values for a random sample of 12 middle ag

The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 4 hour periods. Below is the sample:
61 58 67 52 25 64 38 49 51 61 58 61 27 61 58 34
From this data set, compute the sample mean, median, mode and midrange. Compute the 1st quartile and 3rd and

For the following exercise, complete the following:
Find the mean, median, and range for each of the two data sets.
Find the standard deviation using the rule of thumb for each of the data sets.
Compare the two sets and describe what you discover.
The following data sets shows the ages of the first seven president

1. For each of the following, note whether the distribution is symmetrical, negatively skewed, or positively skewed.
a. Mean = 14, mode = 25, median = 19
b. Mean = 50, mode = 50, median = 50
c. Mean = 225.8, mode = 184, median = 199
2. A math test was given with the following results:
80, 69, 92, 75, 88, 37, 98, 92,

Range of numbers:
13 13 13 20 26 27 31 34 34 34 35 35 36 37 38
41 41 41 45 47 47 47 50 51 53 54 56 62 67 82
What is the first and third quartile?
What is the second decile and the eighth decile?
What is the 67th percentile?