Question
In: Statistics and Probability
It is suggested that the true average weight of college football players is 200 lb. In...
It is suggested that the true average weight of college
football players is 200 lb. In a sample of 30 players, the sample
average is 206.73 lb. The sample standard deviation is 6.35 lb.
Does the true average weight differ from what was suggested? Test
the appropriate hypotheses about the true average weight of college
football players. Use α=0.05.
Solutions
Expert Solution
as test statistic falls in rejection region we reject null hypothesis.
We have sufficient evidence to conclude that true average weight differ from 200
orchestra answered 2 years agoRelated Solutions
The weight of football players in the NFL is normally distributed with a mean of 200...
The weight of football players in the NFL is normally
distributed with a mean of 200 pounds and a standard deviation of
25 pounds.
1. What is the probability that a randomly selected
football player will weigh more than 243.75 pounds?
a. 0.4599
b. 0.0401
c. 0.9599
d. 0.5401
2. What is the probability that a football player will
weigh less than 260 pounds?
a. 0.9918
b. 0.0528
c. 0.4918
d. 0.0082
3. What percentage of players will weigh between...
The weight of football players in the NFL is normally distributed with a mean of 200...
The weight of football players in the NFL is normally
distributed with a mean of 200 pounds and a standard deviation of
25 pounds.
A) What is the probability that a randomly selected football
player will weigh more than 243.75 pounds?
B) What is the probability that a football player will weigh
less than 260 pounds?
C) What percentage of players will weigh between 150 to 250
pounds?
D) 95% of player weights are less than X pounds. Therefore X...
The average weight of a football players on a team has been computed to be 235.5...
The average weight of a football players on a team has been
computed to be 235.5 pounds with a standard deviation of 30.5
pounds. What is the probability that a random sample of 100 players
will weigh more than 24,000 pounds?
The weight of football players is normally distributed with a mean of 90kg and a standard...
The
weight of football players is normally distributed with a mean of
90kg and a standard deviation of 10 kg what is the probability that
in a team of 12 players the average weight is less than 85 kg
The National Football League (NFL) holds its annual draft of the nation's best college football players...
The National Football League (NFL) holds its annual draft of the
nation's best college football players in April each year. Prior to
the draft, various sporting news services project the players who
will be drafted along with the order in which each will be selected
in what are called mock drafts. Players who are considered to have
superior potential as professional football players are selected
earlier in the draft. Suppose the following table shows projections
by one mock draft service...
The National Football League (NFL) holds its annual draft of the nation's best college football players...
The National Football League (NFL) holds its annual draft of the
nation's best college football players in April each year. Prior to
the draft, various sporting news services project the players who
will be drafted along with the order in which each will be selected
in what are called mock drafts. Players who are considered to have
superior potential as professional football players are selected
earlier in the draft. Suppose the following table shows projections
by one mock draft service...
The National Football League (NFL) holds its annual draft of the nation's best college football players...
The National Football League (NFL) holds its annual draft of the
nation's best college football players in April each year. Prior to
the draft, various sporting news services project the players who
will be drafted along with the order in which each will be selected
in what are called mock drafts. Players who are considered to have
superior potential as professional football players are selected
earlier in the draft. Suppose the following table shows projections
by one mock draft service...
The National Football League (NFL) holds its annual draft of the nation's best college football players...
The National Football League (NFL) holds its annual draft of the
nation's best college football players in April each year. Prior to
the draft, various sporting news services project the players who
will be drafted along with the order in which each will be selected
in what are called mock drafts. Players who are considered to have
superior potential as professional football players are selected
earlier in the draft. Suppose the following table shows projections
by one mock draft service...
The mean weight of 500 students at a certain college is 151 lb and the standard...
The mean weight of 500 students at a certain college is 151 lb
and the standard deviation is 15 lb. Assume that the weights are
normally distributed.
a.) How many students weigh between 120 and 155 lb? (ANSWER IN
WHOLE NUMBER)
b.) What is the probability that randomly selected male students
to weigh less than 128 lb? (ANSWER IN 4 DECIMAL NUMBER)
STEPS ON STATCRUNCH A sample of 21 professional football players had a mean weight of 259.6...
STEPS ON STATCRUNCH A sample of 21 professional football players
had a mean weight of 259.6 pounds and standard deviation of 12.1
pounds. A sample of 19 professional basketball players had a mean
weight of 205.8 pounds and a standard deviation of 12.9. Find a
99% C. I. for μ1-μ2 and interpret. Round your answer to 2 decimal
places.
confidence interval:
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