The average time to run the 5K fun run is 24 minutes and the standard deviation is 2.7 minutes. 16 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X- N( b. What is the distribution of a? - N( c. What is the distribution of 2? - N hat thi Fupnere time ill be between

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Part a, b and c please 

The average time to run the 5K fun run is 24 minutes and the standard deviation is 2.7 minutes. 16 runners are
randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a
normal distribution.
a. What is the distribution of X? X - N(
b. What is the distribution of ? - N(
c. What is the distribution of ? a - N(
С.
d. If one randomly selected runner is timed, find the probability that this runner's time will be between
23.1875 and 23.9875 minutes.
e. For the 16 runners, find the probability that their average time is between 23.1875 and 23.9875
minutes.
f. Find the probability that the randomly selected 16 person team will have a total time less than 372.8.
For part e) and f), is the assumption of normal necessary? O No Yes
g.
h. The top 10% of all 16 person team relay races will compete in the championship round. These are the
10% lowest times. What is the longest total time that a relay team can have and still make it to the
championship round?
minutes
Hint:
Some Helpful Videos:
• Finding the Sampling Distribution [+]
• Finding a Probability Using the Central Limit Theorem
Finding Value Given a Probability Using the Central Limit Theorem 2 [+]
• The Central Limit Theorem For Sums E [+]
[+]
Hint
RasmusseRE
habits-9 gedpdf 7-
Transcribed Image Text:The average time to run the 5K fun run is 24 minutes and the standard deviation is 2.7 minutes. 16 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X - N( b. What is the distribution of ? - N( c. What is the distribution of ? a - N( С. d. If one randomly selected runner is timed, find the probability that this runner's time will be between 23.1875 and 23.9875 minutes. e. For the 16 runners, find the probability that their average time is between 23.1875 and 23.9875 minutes. f. Find the probability that the randomly selected 16 person team will have a total time less than 372.8. For part e) and f), is the assumption of normal necessary? O No Yes g. h. The top 10% of all 16 person team relay races will compete in the championship round. These are the 10% lowest times. What is the longest total time that a relay team can have and still make it to the championship round? minutes Hint: Some Helpful Videos: • Finding the Sampling Distribution [+] • Finding a Probability Using the Central Limit Theorem Finding Value Given a Probability Using the Central Limit Theorem 2 [+] • The Central Limit Theorem For Sums E [+] [+] Hint RasmusseRE habits-9 gedpdf 7-
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