Question
In: Statistics and Probability
Data show that men between the ages of 20 and 29 in a general population have...
Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of
3.1 inches. A baseball analyst wonders whether the standard deviation of heights of major-league baseball players is less than
3.1 inches. The heights (in inches) of
20 randomly selected players are shown in the table.
Calculate the value of the test statistic.
A) x^2=
B) determine the P-value
|
72 |
74 | 71 | 72 | 76 |
| 70 | 77 | 75 | 72 | 72 |
| 77 | 71 | 75 | 70 | 73 |
| 74 | 75 | 73 | 74 | 73 |
Solutions
orchestra answered 2 years agoRelated Solutions
Data show that men between the ages of 20 and 29 in a general population have...
Data show that men between the ages of 20 and 29 in a general
population have a mean height of 69.3 inches, with a standard
deviation of 2.9 inches. A baseball analyst wonders whether the
standard deviation of heights of major-league baseball players is
less than 2.9 inches. The heights (in inches) of 20 randomly
selected players are shown in the table.
72
74
71
72
76
70
77
76
72
72
77
73
75
70
73
74
75
73...
in a survey of men in a certain country ages (20-29) the mean height was 64.6...
in
a survey of men in a certain country ages (20-29) the mean height
was 64.6 inches with a standard deviation of 2.8 inches.
1. the height that represents the 99th percentile is ?? inches
(round to two decimals places as needed)
2. the height that represents the first quartile is ?? inches
(round to two decimal places as needed)
The mean height of men in the US (ages 20-29) is 69.5 inches and the standard...
The mean height of men in the US (ages 20-29) is 69.5 inches
and the standard deviation is 3.0 inches. A random sample of 49 men
between ages 20-29 is drawn from this population.
Find the probability that the sample height x is more than
70.5 inches.
Data obtained from the National Center for Health Statistics show that men between the ages of...
Data obtained from the National Center for Health Statistics
show that men between the ages of 20 and 29 have a mean height of
69.3 inches, with a standard deviation of 2.9 inches. A baseball
analyst wonders whether the standard deviation of heights of
major-league baseball players is less than 2.9 inches. The heights
(in inches) of 20 randomly selected players are given below.
72
74
71
72
76
70
77
75
72
72
77
72
75
70
73
73...
A recent study found that 56% of workers between the ages of 20-29 cash out their...
A recent study found that 56% of workers between the ages of
20-29 cash out their retirement accounts when they lose their jobs
or move to a new employer. Complete parts a through e below based
on a random sample of 14 workers between the ages of 20-29 who lost
their jobs or changed employers.
What is the probability that exactly 3 workers cashed out their
retirement accounts? The probability is_________. (Round to four
decimal places as needed.)
What is...
Data obtained from the National Center for Health Statisticsshow that men between the ages of...
Data obtained from the National Center for Health Statistics
show that men between the ages of 20 and 29 have a mean height of
69.3 inches, with a standard deviation of 2.9 inches. A baseball
analyst wonders whether the standard deviation of heights of
major-league baseball players is less than 2.9 inches. The heights
(in inches) of 20 randomly selected players are given below.7274717276707775727277727570737375737474Use Minitab Express to perform a Normality Test on this data.
Report your answers rounded to three...
women between the ages of 70 and 80 were randomly selected from the general population of...
women between the ages of 70 and 80 were randomly selected from
the general population of women in this age group to take part in a
special program to decrease reaction time (speed). After the
course, the women had an average reaction time of 1.7 seconds.
Assume that the mean reaction time for the general population of
women in this age group is 1.9, with a standard deviation of 0.6
seconds. (Assume that the population is approximately normal.)
Use this...
The height of women (ages 20 to 29) are approximaltely normally distributed with a mean of...
The height of women (ages 20 to 29) are approximaltely normally
distributed with a mean of 68 inches and standard deviation of 3.8
inches. The heights of men (ages 20 to 29) are approximately
normally distributed with a mean height of 71.5 inches and a
standard deviation of 3.4 inches.
A) Use the z- score to compare a woman that is 5 feet 7 inches
and a man that is 5 feet 7 inches tall.
B) If a z-score of...
In a survey of a group of men, the heights in the 20-29 age group were...
In a survey of a group of men, the heights in the 20-29 age
group were normally distributed, with a mean of 69.7 inches and a
standard deviation of 2.0 inches. A study participant is randomly
selected. Complete parts (a) through (d) below.
(a) Find the probability that a study participant has a height
that is less than 65 inches.
The probability that the study participant selected at random is
less than 65 inches tall is
. 0094. (Round to...
statistics In a survey of a group of men, the heights in the 20-29 age group...
statistics
In a survey of a group of men, the heights in the 20-29 age
group were normally distributed, with a mean of 69.1 inches and a
standard deviation of 3.0 inches. A study participant is randomly
selected.b) Find the probability that a study participant has a
height that is between 65 and 72 inches.
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