STATS Lab Review 5 Questions 2015

| September 29, 2018

.0001pt;”>1.value:
10.00 points

A sample of the funds deposited in
First Federal Savings Bank’s MCA (miniature checking account) revealed the
following amounts.

$124

$14

$150

$289

$52

$156

$203

$82

$27

$248

39

52

103

58

136

249

110

298

251

157

186

107

142

185

75

202

119

219

156

78

116

152

206

117

52

299

58

153

219

148

145

187

165

147

158

146

185

186

149

140

Using the preceding raw data and a
statistical package (such as MINITAB):

(a)

Determine the mean, median, and
standard deviation. (Round your answers to 2
decimal places.)

Mean

Median

Standard deviation

(b)

Determine the first and third
quartiles. (Round your answers to 2 decimal
places.)

First quartile

Third quartile

(c)

Are there any outliers? Do the
amounts follow a symmetric distribution or are they skewed?

There are
(Click to select)
no
three
two
outliers. The
distribution is
(Click to select)
symmetric
positively skewness
negatively skewness
.

(d)

Organize the distribution of ages
into a frequency distribution.

lower

upper

Frequency

Cumulative
Frequency

0

< 50 < < < < < 2.value: 10.00 points Listed below are the 44 U.S. presidents and their age as they began their terms in office. Using the preceding raw data and a statistical package (such as MINITAB): Number Name Age Number Name Age 1 Washington 57 23 B. Harrison 55 2 J. Adams 61 24 Cleveland 55 3 Jefferson 57 25 McKinley 54 4 Madison 57 26 T. Roosevelt 42 5 Monroe 58 27 Taft 51 6 J. Q. Adams 57 28 Wilson 56 7 Jackson 61 29 Harding 55 8 Van Buren 54 30 Coolidge 51 9 W. H. Harrison 68 31 Hoover 54 10 Tyler 51 32 F. D. Roosevelt 51 11 Polk 49 33 Truman 60 12 Taylor 64 34 Eisenhower 62 13 Fillmore 50 35 Kennedy 43 14 Pierce 48 36 L. B. Johnson 55 15 Buchanan 65 37 Nixon 56 16 Lincoln 52 38 Ford 61 17 A. Johnson 56 39 Carter 52 18 Grant 46 40 Reagan 69 19 Hayes 54 41 G.H.W. Bush 64 20 Garfield 49 42 Clinton 46 21 Arthur 50 43 G. W. Bush 54 22 Cleveland 47 44 Obama 47 .mcgraw-hill.com/sites/dl/free/0073401803/887796/Review_2_Presidents.XLS">.png” alt=”Picture”> Click here for the Excel Data File

(a)

Determine the mean, median, and
standard deviation. (Round your answers to 2
decimal places.)

Mean

Median

Standard deviation

(b)

Determine the first and third
quartiles. (Round your answers to 2 decimal
places.)

First quartile

Third quartile

(c)

Are there any outliers? Do the
amounts follow a symmetric distribution or are they skewed?

There are
(Click to select)
three
no
two
outliers. The
distribution is
(Click to select)
negatively skewness
symmetric
positively skewness
.

(d)

Organize the distribution of funds
into a frequency distribution

Age

Frequency

40

up
to

45

up
to

up
to

up
to

up
to

up
to

Total

_Q3.value:
10.00 points

Listed below is the per capita
income for the 50 states and the District of Columbia.

State

Amount

State

Amount

Alabama

$

30,894

Montana

$

30,790

Alaska

38,138

Nebraska

34,440

Arizona

31,936

Nevada

38,994

Arkansas

28,473

New Hampshire

39,753

California

39,626

New Jersey

46,763

Colorado

39,491

New Mexico

29,929

Connecticut

50,762

New York

44,027

Delaware

39,131

North Carolina

32,247

DC

57,746

North Dakota

32,763

Florida

36,720

Ohio

33,320

Georgia

32,095

Oklahoma

32,391

Hawaii

37,023

Oregon

33,299

Idaho

29,920

Pennsylvania

36,825

Illinois

38,409

Rhode Island

37,523

Indiana

32,288

South Carolina

29,767

Iowa

33,038

South Dakota

32,030

Kansas

34,799

Tennessee

32,172

Kentucky

29,729

Texas

35,166

Louisiana

31,821

Utah

29,406

Maine

32,095

Vermont

34,871

Maryland

43,788

Virginia

39,540

Massachusetts

46,299

Washington

38,212

Michigan

33,788

West Virginia

28,206

Minnesota

38,859

Wisconsin

34,405

Mississippi

27,028

Wyoming

40,655

Missouri

32,789

Use a statistical software package
such as Excel or MINITAB to help answer the following questions. Determine
the first and third quartiles.

.mcgraw-hill.com/sites/dl/free/0073401803/887796/Review_3_PerCapita.XLS”>.png” alt=”Picture”> Click here for the Excel Data File

(a)

Determine the mean, median, and
standard deviation.

Mean

Median

Standard deviation

(b)

Determine the first and third
quartiles.

First quartile

Third quartile

(c)

Are there any outliers? Do the
amounts follow a symmetric distribution or are they skewed?

There are
(Click to select)
three
two
no
outliers. The
distribution is
(Click to select)
negatively skewed
positively skewed
symmetric
.

(d)

Organize the distribution of funds
into a frequency distribution.

Amounts

Frequency

$ 24,000

up
to

30,000

up
to

up
to

up
to

up
to

up
to

Total

C4.value:
10.00 points

A sample of 12 homes sold last
week in St. Paul, Minnesota, revealed the following information.

Home
Size
(thousands of
square feet)

Selling
Price
($ thousands)

1.4

100

1.3

110

1.2

105

1.1

120

1.4

80

1.0

105

1.3

110

0.8

85

1.2

105

0.9

75

1.1

70

1.1

95

.mcgraw-hill.com/sites/dl/free/0073401803/887796/Review_4_Homes.xls”>.png” alt=”Picture”> Click here for the Excel Data File

From the above table can we
conclude that, as the size of the home (reported in thousands of square feet)
increases, the selling price (reported in $ thousands) also increases?

Yes

No

eBook Link.mheducation.com/” title=”references”>references_44537 5.value:
10.00 points

Refer to the following diagram.

.gif” alt=”Picture”>

(a)

What is the graph called?

Graph

(Click to select)
scatter diagram
dot plot
box plot

(b)

What are the median, and first and
third quartile values?

Median

First quartile

Third quartile

(c)

Is the distribution positively
skewed?

(Click to select)
No
Yes

(d)

Estimate the values of outliers.

Outliers

and

(e)

Can you determine the number of
observations in the study?

(Click to select)
Yes
No

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