Develop a 95 percent confidence interval for the mean number of
errors committed (Errors Column) per...
Develop a 95 percent confidence interval for the mean number of
errors committed (Errors Column) per team assuming that you know
the population standard deviation to be 15.0.
Errors
79
81
108
92
99
106
101
95
88
90
90
117
124
102
106
107
94
95
68
137
103
114
109
101
89
83
92
88
121
109
Select one:
a. 94.15, 105.05
b. 95.22, 103.98
c. 94.23, 104.97
d. 95.10, 104.10
Develop a 95 percent confidence interval for the mean number of
home runs (HR Column) per...
Develop a 95 percent confidence interval for the mean number of
home runs (HR Column) per team assuming that you do not know the
population standard deviation.
Errors
79
81
108
92
99
106
101
95
88
90
90
117
124
102
106
107
94
95
68
137
103
114
109
101
89
83
92
88
121
109
Select one:
a. 154.38, 176.09
b. 155.82, 174.65
c. 150, 200
d. 153.9, 176.56
A random sample of 36 seventh grade students in Harvard are
given a test on a...
A random sample of 36 seventh grade students in Harvard are
given a test on a reading test. Below are their raw scores.
73, 77, 80, 80, 84, 86, 91, 93, 93, 93, 94, 97, 100, 100, 103,
103, 104, 105, 105, 106, 108, 110, 111, 117. 120, 120, 123, 124,
126, 128, 129, 129, 130, 130, 136
Sample mean = 105.97
Sample standard deviation = 17.18
Nationally 30% of the students score 110 points or higher on
this test....