Question

The Business Association of the Montreal Area (BAMA) wants to estimate the number of hours per week that each business executive in the city works. BAMA found that the following is the number of hours worked weekly in 2019 by a sample of business executives in the Montreal Area:

77 | 86 | 84 | 79 | 84 | 76 | 82 | 85 | 80 | 81 | 85 | 76 |

- What is the point estimate of the population mean?
**(Round your answer to 2 decimal places.)**

- Develop a 95% confidence interval for the population mean. (In your calculations, use 2 decimal places for the mean and 3 decimal places for other values. Round your final answers to 2 decimal places.)

Answer #1

The Business Association of the Montreal Area (BAMA) wants to
estimate the number of hours per week that each business executive
in the city works. BAMA found that the following is the number of
hours worked weekly in 2019 by a sample of business executives in
the Montreal Area:
84
87
88
83
81
85
84
86
79
81
78
82
What is the point estimate of the population mean?
(Round your answer to 2 decimal places.)
Develop a 90%...

In 2003, the Accreditation Council for Graduate Medical
Education (ACGME) implemented new rules limiting work hours for all
residents. A key component of these rules is that residents should
work no more than 80 hours per week. The following is the number of
weekly hours worked in 2017 by a sample of residents at the
Tidelands Medical Center. 86 89 87 85 81 82 89 88 82 84 81 76
What is the point estimate of the population mean? (Round...

Mid Score
Final Score
80
78
87
85
72
81
69
54
86
70
83
73
78
89
75
84
74
86
75
79
84
75
73
63
74
72
73
69
80
86
75
78
72
75
77
68
76
77
66
78
74
77
71
73
85
79
74
74
76
79
76
73
84
72
77
81
78
86
86
76
81
83
78
83
85
86
73
71
83
83
83
79
72
68
83
90...

In 2003, the
Accreditation Council for Graduate Medical Education (ACGME)
implemented new rules limiting work hours for all residents. A key
component of these rules is that residents should work no more than
80 hours per week. The following is the number of weekly hours
worked in 2017 by a sample of residents at the Tidelands Medical
Center.
84
86
84
86
79
82
87
81
84
78
74
86
Click here for the Excel Data File
What is the...

3. In order to approximate the number of text messages sent
daily by Swedish teenagers, Neu Star Communications took a random
sample of Swedish youth, finding the number of text messages they
sent on a given day in 2018:
HOURS
78
86
86
79
84
79
89
86
86
84
79
81
What is the point estimate of the population mean?
(Round your answer to 2 decimal places.)
ESTIMATED POPULATION MEAN:
…..............?
Develop a 98% confidence interval for the population...

In 2003, the Accreditation Council for Graduate Medical
Education (ACGME) implemented new rules limiting work hours for all
residents. A key component of these rules is that residents should
work no more than 80 hours per week. The following is the number of
weekly hours worked in 2017 by a sample of residents at the
Tidelands Medical Center.
84 86 84 86 79 82 87 81 84 78 74 86
a. What is the point estimate of the population mean...

Below represent scores on an exam, each entry one score for one
student
40
99
59
98
63
63
64
65
67
35
67
67
68
70
71
71
71
46
72
72
60
73
74
74
74
75
97
75
62
76
76
76
76
76
77
57
77
98
77
63
78
78
78
79
79
80
80
80
80
80
81
81
92
81
93
82
82
83
83
83
83
83
83
83
84
84
84...

In 2003, the Accreditation Council for Graduate Medical
Education (ACGME) implemented new rules limiting work hours for all
residents. A key component of these rules is that residents should
work no more than 80 hours per week. The following is the number of
weekly hours worked in 2017 by a sample of residents at the
Tidelands Medical Center. 85 84 89 88 79 87 80 90 85 86 79 80
picture Click here for the Excel Data File What is...

The Student Government Association is interested in an estimate
of the mean number of hours students work per week. They take a
simple random sample of 89 students. The data they collected can be
found in the column labeled “Number of hours worked per week”. Use
the sample data to construct a 95% confidence interval for the mean
number of hours worked. Write one or two sentences to communicate
to the Student Government Association the estimate and the margin
of...

Refer to the accompanying data set and construct a 95%
confidence interval estimate of the mean pulse rate of adult
females; then do the same for adult males. Compare the results.
Males Females
81
82
72
94
52
57
59
66
51
54
62
80
52
77
74
85
51
89
62
57
73
35
61
64
62
87
80
74
80
79
63
62
63
67
97
76
43
60
85
65
72
86
66
85
73
69
72 ...

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