Question
In: Statistics and Probability
I. The members of a very large health club were observed on a randomly selected day....
I. The members of a very large health club were observed on a
randomly selected day. The distribution of times they spent that
day at the health club was found to have a mean of 91.8 minutes and
a standard deviation of 16.2 minutes. Suppose these values of the
mean and standard deviation hold true for all members of this
club.
1. Find the minimum percentage of this health club's members
who spend time at this health club between 51.3 and 132.3
minutes
2. Find the interval that contains the times spent at this
health club by at least 85% of members.
Solutions
orchestra answered 2 years agoRelated Solutions
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table below.
Person
A
B
C
D
E
F
G
H
I
J
Test A
81
105
91
116
102
74
95
122
99
112
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105
89
122
103
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98
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Ten randomly selected people took an IQ test A, and next day they took a very...
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they took a very similar IQ test B. Their scores are shown in the
table below.
Person A B C D E F G H I J
Test A 123 97 112 89 103 94 74 119 85 105
Test B 122 100 110 89 102 92 73 121 87 104
The test statistic is _
The critical value is_
Construct a 99% confidence interval for the mean...
Ten randomly selected people took an IQ test A, and next day they took a very...
Ten randomly selected people took an IQ test A, and next day
they took a very similar IQ test B. Their scores are shown in the
table below. Person A B C D E F G H I J Test A 71 119 104 100 108
127 83 97 94 92 Test B 72 119 110 105 106 130 85 100 92 91 1.
Consider (Test A - Test B). Use a 0.05 0.05 significance level to
test the claim...
Ten randomly selected people took an IQ test A. The next day they took a very...
Ten randomly selected people took an IQ test A. The next day
they took a very similar IQ test B. Their scores are shown in the
table below.
Person
1
2
3
4
5
6
7
8
9
10
Test A
106
99
95
92
87
127
115
100
77
108
Test B
112
101
99
96
90
130
112
99
80
112
1. Use a 0.05 significance level to test the claim that, on
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Ten randomly selected people took an IQ test A, and next day they took a very...
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they took a very similar IQ test B. Their scores are shown in the
table below.
Person
A
B
C
D
E
F
G
H
I
J
Test A
98
107
110
118
125
79
95
101
84
91
Test B
100
106
114
118
124
77
98
99
83
89
1. Consider (Test A - Test B). Use a 0.050.05 significance level to
test the claim that...
Ten randomly selected people took an IQ test A, and next day they took a very...
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they took a very similar IQ test B.
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Test A 106 120 113 75 83 103 111 93 89 99
Test B 104 119 116 78 82 108 108 92 91 98
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