Question
In: Statistics and Probability
A particular population, for which the frequency curve is bell-shaped (normal), has a mean of μ=100...
A particular population, for which the frequency curve is bell-shaped (normal), has a mean of μ=100 and a standard deviation of σ=18. For samples of size n=36 consider the sampling distribution of the sample mean ("xbar").
Note that 18 36=3 and that
- 100±(1)(3)⟹97 to 103
- 100±(2)(3)⟹94 to 106
- 100±(3)(3)⟹91 to 109
According to the empirical rule, approximately _____ percent of samples of size 36 will produce a sample mean between 97 and 103.
Group of answer choices
99.7
90
95
68
None of the other choices represent a suitable response.
Solutions
orchestra answered 2 years agoRelated Solutions
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Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of
100
and a standard deviation of
13
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between
87
and
113?
(b) What percentage of people has an IQ score less than
74
or greater than
126?
(c) What percentage of people has an IQ score greater than
126?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 19. Use the empirical rule
to determine the following. (a) What percentage of people has an
IQ score between 62 and 138? (b) What percentage of people has an
IQ score less than 43 or greater than 157? (c) What percentage of
people has an IQ score greater than 138? (a) 95% (Type an
integer or a decimal.)
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 13.
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between 87 and
113?
(b) What percentage of people has an IQ score less than 87 or
greater than 113?
(c) What percentage of people has an IQ score greater than
139?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 18. Use the empirical rule
to determine the following. (a) What percentage of people has an
IQ score between 64 and 136? (b) What percentage of people has an
IQ score less than 64 or greater than 136? (c) What percentage of
people has an IQ score greater than 154?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 13. Use the empirical rule
to determine the following.
(a) What percentage of people has an IQ score between 61 and
139?
(b) What percentage of people has an IQ score less than 74 or
greater than 126?
(c) What percentage of people has an IQ score greater than 113?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 18. Use the empirical rule
to determine the following.
(a) What percentage of people has an IQ score between 82 and
118?
(b) What percentage of people has an IQ score less than 64 or
greater than 136?
(c) What percentage of people has an IQ score greater than
118?
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