Question 8

The following stem-and-leaf chart reports the number of movies rented per day at Video Connection:

121 2 2 2 2 4 5 6131 2 3146 8 8 9156 6 7163 5172 4 5 6 8182 6 8191 3 4 5 6200 3 4 6 7 9212 2 3 9227 8 9230 0 1 7 9248251 326270 3 3 4 5 6 7

a.How many days were studied?

61

61 Correct

b.How many observations are in the last class?

7

7 Correct

c.What are the smallest and the largestvalues in the entire set of data?

121

121 Correct

,277

277 Correct

d.List the actual values in the fourth row.

156

156 Correct

,156

156 Correct

,157

157 Correct

e.Not available in Connect.

f.On how many days were less than 180 movies rented?

15

15 Incorrect

g.On how many days were 220 or more movies rented?

20

20 Incorrect

h.What is the middle value?(Round the final answer to 1 decimal place.)

201.5

201.5 Incorrect

i.On how many days were between 220 and 280 movies rented?

11

11 Incorrect

Question 7

The following data give the weekly amounts spent on groceries for a sample of households:

$271352184552283143113462262652232772671791661812622972011623313392472664163281113129140243510288167213241437298636303275209432108307

a.How many classes would you recommend?

Number of classes6

6 Correct

b.What class interval would you suggest?

Class interval100

100 Correct

c.What would you recommend as the lower limit of the first class?

Lower limit of the first class0

0 Incorrect

d.Organize the data into a frequency distribution.

ClassFrequency0

0 Incorrect

to under100

100 Incorrect

3

3 Incorrect

100

100 Incorrect

to under200

200 Incorrect

13

13 Correct

200

200 Incorrect

to under300

300 Incorrect

16

16 Incorrect

300

300 Incorrect

to under400

400 Incorrect

10

10 Incorrect

400

400 Incorrect

to under500

500 Incorrect

3

3 Incorrect

500

500 Incorrect

to under600

600 Incorrect

1

1 Correct

Total45

45 Correct

question 6

The following frequency distribution reports the number of frequent flier miles, reported in thousands, for employees of Brumley Statistical Consulting Inc. during the most recent quarter:

Frequent

Flier Miles

(thousands)Number of Employees0 to under454 to under8148 to under122712 to under161316 to under204

Total63

a.How many employees were studied?

63

63 Correct

b.What is the midpoint of the first class?(Round the final answer to 1 decimal place.)

2

2 Correct

thousand miles

c.Not available in Connect.

d.A frequency polygon is to be drawn. What are the coordinates of the plot for the last class?(Round the final x value to 1 decimal place and y value to whole number.)

x=2

2 Incorrect

,y=5

5 Incorrect

e.Not available in Connect.

f.Interpret the frequent flier miles.

Most between8000-12000

Correct

, even spread on both sides.

Question 30

The Wachesaw Manufacturing Co. produced the following number of units in the last 16 days:

31313132312929323032303235343030

The information is to organized into a frequency distribution.

a.How many classes would you recommend?

5

5 Correct

b.What class interval would you suggest?(Round the final answer to 1 decimal place.)

1.4

1.4 Incorrect

c.What lower limit would you recommend for the first class?

28

28 Correct

d.Organize the information into a frequency distribution and determine the relative frequency distribution.(Round the final answers to 4 decimal places.)

UnitsFrequencyRelative frequency28 to under 29.52

2 Correct

0.125

0.125 Correct

29.5 to under 31.04

4 Correct

0.25

0.25 Correct

31.0 to under 32.58

8 Correct

0.5

0.5 Correct

32.5 to under 34.00

0 Correct

0

0 Correct

34.0 to under 35.52

2 Correct

0.125

0.125 Correct

Total16

16 Correct

1

1 Correct

e.Comment on the shape of the distribution.

The largest concentration is in the31.0

31.0 Correct

up to32.5

32.5 Correct

frequency (8

8 Correct

).

Question 31

The Quick Change Oil Company has a number of outlets. The numbers of oil changes at the Oak Street outlet in the past 20 days are as follows:

995786103108637559509046417682107102824388107

The data are to be organized into a frequency distribution using 5 classes.

b.What class interval would you suggest?(Round the final answer to the nearest whole number.)

c.What lower limit would you recommend for the first class?

d.Organize the information into a frequency distribution and determine the relative frequency distribution.(Round the final answers to 2 decimal places.)

UnitsFrequencyRelative frequencyto underto underto underto underto underTotal

e.Comment on the shape of the distribution.(Enter the intervals in ascending order.)

The greatest concentration is in classesup toandup to.

Question 33

The following chart shows the selling price, in thousands of dollars, of houses sold last month in Corner Brook, Newfoundland:

a.How many homes were studied?

199

199 Correct

b.What is the class interval?

50

50 Correct

c.One hundred homes sold for less than what amount?

$125,000

125,000 Correct

approximately.

d.About 75% of the homes sold for less than what amount?

$200,000

200,000 Correct

approximately.

e.Estimate the number of homes in the $200000 up to $250000 class.

15

15 Incorrect

f.About how many homes sold for less than $125000?

100

100 Correct

Question 34

The following stem-and-leaf chart reports the number of movies rented per day at Video Connection:

120 0 1 2 2 5131 2 3146 8 8 9157 8 8163 5172 4 5 6 8182 6 8191 3 4 5 6200 3 4 6 7 9212 2 3 9227 8 9230 0 1 7 9248251 326273 6

a.How many days were studied?

54

54 Correct

b.How many observations are in the last class?

2

2 Correct

c.What are the smallest and the largestvalues in the entire set of data?

120

120 Correct

,276

276 Correct

d.List the actual values in the fourth row.

157

157 Correct

,158

158 Correct

,158

158 Correct

e.Not available in Connect.

f.On how many days were less than 190 movies rented?

26

26 Correct

g.On how many days were 220 or more movies rented?

13

13 Correct

h.What is the middle value?(Round the final answer to 1 decimal place.)

198

198 Incorrect

i.On how many days were between 200 and 280 movies rented?

23

23 Correct

Question 40

Compute the geometric mean of the following percentage increases: 1, 2, 3, 5, 8, 6, 4, and 2.(Round the final answer to 1 decimal place.)

The geometric mean3.2

3.2 Incorrect

%

Question 47

Determine the mean, median, and standard deviation of the following frequency distribution:(Round the final answers to 2 decimal places.)

ClassFrequency0 to under 545 to under 10610 to under 151415 to under 20520 to under 255

Mean

Median

Standard deviation

Question 48

Advertising expenses are a significant component of the cost of goods sold. Listed below is a frequency distribution showing the advertising expenditures for 40 manufacturing companies. Estimate the mean, median, and standard deviation of advertising expense.(Round the final answers to 2 decimal places.)

Advertising Expenditure

($ millions)Number of companies$15 to under $25225 to under 35835 to under 451545 to under 551055 to under 655Total40

Mean

Median

Standard deviation

These are the questions I need answered please, please use the data given I don't want different numbers