Final Page 2 1.( TCO B) The following table gives the number of visits to recreational facilities by kind and geographical region.( Points: 30) 2.( TCO B, F) The length of time Americans exercise each week is normally distributed with a mean of 15.8 minutes and a standard deviation of 2.2 minutes
X |
P( X≤x) |
P( X≥x) |
Mean Std dev |
11 |
. 0146. 9854 15.8 |
2.2 |
15 |
. 3581. 6419 15.8 |
2.2 |
21 |
. 9910. 0090 15.8 |
2.2 |
24 |
. 9999. 0001 15.8 |
2.2 |
p( lower) |
p( upper) |
Set 2
1.( TCO A) Seventeen salespeople reported the following number of sales calls completed last month.
72 93 82 81 82 97 102 107 119 86 88 91 83 93 73 100 102
a. Compute the mean, median, mode, and standard deviation, Q1, Q3, Min, and Max for the above sample data on number of sales calls per month. b. In the context of this situation, interpret the Median, Q1, and Q3.( Points: 33) a.
b. Median of the above sales calls means that if all the sales calls data points are arranged in an ascending order, then 91 Nos. of calls made would fall in the middle. So, there are as 8 sales calls
2.( TCO B) Cedar Home Furnishings has collected data on their customers in terms of |
whether they reside in an urban location or a suburban location, as well as rating the |
customers as either“ good,”“ borderline,” or“ poor.” The data is below. |
Urban Suburban |
Total |
Good 60 |
168 |
228 |
Borderline |
36 |
72 |
108 |
Poor |
24 |
40 |
64 |
Total |
120 |
280 |
400 |
If you choose a customer at random, then find the probability that the customer