Applied Statistics in Business and Economics
5th Edition
ISBN: 9781259329050
Author: DOANE
Publisher: MCG
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Chapter 15.1, Problem 5SE
a.
To determine
State the null and alternative hypothesis.
b.
To determine
Find the degrees of freedom for the
c.
To determine
Find the critical value of chi-square from Appendix E or from Excel’s
d.
To determine
Check whether the data provide sufficient evidence to conclude that the completion rate and prenotification are statistically independent or not and make conclusion.
e.
To determine
Find the cell that contribute most to the chi-square statistics.
f.
To determine
Find the expected frequencies that are too small.
g.
To determine
Interpret the p-value and calculate p-values using Excel function if necessary.
h.
To determine
Perform a two-tailed, two-sample z test for
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Given the following sample data values:
7, 12, 15, 9, 15, 13, 12, 10, 18,12
Find the following:
a) Σ
x=
b) x² =
c) x =
n
d) Median
=
e) Midrange
x
=
(Enter a whole number)
(Enter a whole number)
(use one decimal place accuracy)
(use one decimal place accuracy)
(use one decimal place accuracy)
f) the range=
g) the variance, s²
(Enter a whole number)
f) Standard Deviation, s =
(use one decimal place accuracy)
Use the formula s²
·Σx² -(x)²
n(n-1)
nΣ x²-(x)²
2
Use the formula s =
n(n-1)
(use one decimal place accuracy)
Table of hours of television watched per week:
11
15 24
34
36
22
20
30
12
32
24
36
42
36
42
26
37
39
48
35
26
29
27
81276
40
54
47
KARKE
31
35
42
75
35
46
36
42
65
28
54 65
28
23
28
23669
34
43 35 36
16
19
19
28212
Using the data above, construct a frequency table according the following
classes:
Number of Hours Frequency Relative Frequency
10-19
20-29
|30-39
40-49
50-59
60-69
70-79
80-89
From the frequency table above, find
a) the lower class limits
b) the upper class limits
c) the class width
d) the class boundaries
Statistics 300
Frequency Tables and Pictures of Data, page 2
Using your frequency table, construct a frequency and a relative frequency
histogram labeling both axes.
Table of hours of television watched per week:
11
15 24
34
36
22
20
30
12
32
24
36
42
36
42
26
37
39
48
35
26
29
27
81276
40
54
47
KARKE
31
35
42
75
35
46
36
42
65
28
54 65
28
23
28
23669
34
43 35 36
16
19
19
28212
Using the data above, construct a frequency table according the following
classes:
Number of Hours Frequency Relative Frequency
10-19
20-29
|30-39
40-49
50-59
60-69
70-79
80-89
From the frequency table above, find
a) the lower class limits
b) the upper class limits
c) the class width
d) the class boundaries
Statistics 300
Frequency Tables and Pictures of Data, page 2
Using your frequency table, construct a frequency and a relative frequency
histogram labeling both axes.
Chapter 15 Solutions
Applied Statistics in Business and Economics
Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Prob. 5SECh. 15.2 - U.S. market share for smartphones with larger...Ch. 15.2 - Prob. 7SECh. 15.3 - Prob. 8SECh. 15.3 - Prob. 9SECh. 15.3 - In a three-digit lottery, each of the three digits...
Ch. 15.3 - Prob. 11SECh. 15.4 - Excel was asked to generate 50 Poisson random...Ch. 15.4 - Prob. 13SECh. 15.4 - Prob. 14SECh. 15.5 - Exam scores of 40 students in a statistics class...Ch. 15.5 - One Friday night, there were 42 carry-out orders...Ch. 15.6 - Prob. 17SECh. 15.6 - Prob. 18SECh. 15 - Prob. 1CRCh. 15 - Prob. 2CRCh. 15 - Prob. 3CRCh. 15 - Prob. 4CRCh. 15 - Prob. 5CRCh. 15 - Prob. 6CRCh. 15 - Prob. 7CRCh. 15 - Prob. 8CRCh. 15 - Prob. 9CRCh. 15 - Prob. 10CRCh. 15 - (a) Name potential advantages of the...Ch. 15 - (a) What does a probability plot show? (b) If the...Ch. 15 - (a) Name two advantages of the Anderson-Darling...Ch. 15 - Prob. 19CECh. 15 - Prob. 20CECh. 15 - Prob. 21CECh. 15 - Prob. 22CECh. 15 - Prob. 23CECh. 15 - Prob. 24CECh. 15 - Instructions: In all exercises, include software...Ch. 15 - Prob. 26CECh. 15 - Prob. 27CECh. 15 - Prob. 28CECh. 15 - Prob. 29CECh. 15 - Prob. 30CECh. 15 - Prob. 31CECh. 15 - Prob. 32CECh. 15 - Prob. 33CECh. 15 - Prob. 34CECh. 15 - Prob. 35CECh. 15 - Prob. 36CECh. 15 - Prob. 37CECh. 15 - Prob. 38CECh. 15 - Instructions: In all exercises, include software...Ch. 15 - Prob. 40CE
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