Question
In: Statistics and Probability
The amount of time to complete a physical activity in a PE class is approximately normally...
The amount of time to complete a physical activity in a PE class is approximately normally normally distributed with a mean of 37.5 seconds and a standard deviation of 7.6 seconds
a) What is the probability that a randomly chosen student completes the activity in less than 30.6 seconds? Round to 4 decimal places.
b)What is the probability that a randomly chosen student completes the activity in more than 42.9 seconds? Round to 4 decimal places
c)What proportion of students take between 33.5 and 43.4 seconds to complete the activity? Round to 4 decimal places.
d) 90% of all students finish the activity in less than ____ seconds
Answer: 0.182
Answer: 0.2387
Answer: 0.4819
Answer: 47.2
Solutions
orchestra answered 2 years agoRelated Solutions
The amount of time to complete a physical activity in a PE class is approximately normally...
The amount of time to complete a physical activity in a PE class is
approximately normally distributed with a mean of 36.4 seconds and
a standard deviation of 7.9 seconds.
a)What is the probability that a randomly chosen student completes
the activity in less than 26.7 seconds?
b)
What is the probability that a randomly chosen student completes
the activity in more than 42.6 seconds?
c)
What proportion of students take between 30 and 40 seconds to
complete the activity?...
The amount of water in a bottle is approximately normally distributed with a mean of 2.85...
The amount of water in a bottle is approximately normally
distributed with a mean of 2.85 litres with a standard deviation of
0.035-liter.
b. If a sample of 4 bottles is selected, the probability that
the sample mean amount contained is less than 2.82 litres is
0.043.
c. If a sample of 25 bottles is selected, the probability that
the sample mean amount contained is less than 2.82 litres is
0.
Explain the difference in the results of (b) and...
The amount of water in a bottle is approximately normally distributed with a mean of 2.40...
The amount of water in a bottle is approximately normally
distributed with a mean of 2.40 liters with a standard deviation of
0.045 liter. Complete parts (a) through (e) below. a).What is the
probability that an individual bottle contains less than 2.36
liters? b). If a sample of 4 bottles is selected, what is the
probability that the sample mean amount contained is less than 2.36
liters? c).If a sample of 25 bottles is selected, what is the
probability that...
The amount of time part time worker at a pet store is normally distributed with a...
The amount of time part time worker at a pet store is normally
distributed with a mean of 25 hours and a standard deviation of 2.5
hours. In a random sample of 25 employees, what is the probability
that a worker will work for between 24 and 26 hours?
A student goes to the university library. The probability that
the student checks out the science book for the science class is
0.40; the probability that the student checks out the...
A soft drink machine is regulated so that the amount of drink dispensed is approximately normally...
A soft drink machine is regulated so that the amount of drink
dispensed is approximately normally distributed with a standard
deviation equal to 1.5 deciliters. Find the 95% confidence interval
for the mean of all soft drinks dispensed by this machine if a
random sample of 36 drinks had an average content of 22.5
deciliters. What statistical table to be used? What is the tabular
value? What is the computed lower confidence limit? What is the
computed upper confidence limit?
True or False: (PE = Physical Education) 1. Objectives in Physical Education are only based on...
True or False: (PE = Physical Education)
1. Objectives in Physical Education are only based on the
needs of the individual
2. Attitude toward physical activity is not a factor that
influences participation in recreational pursuits?
3. Health as a concept is only viewed as the absence of
disease
4. Acquiring physical skills through participation in games
and sports is commonplace in physical education.
5. The learning domain of the "cognitive" is the only one
of importance in Physical Education...
True or False: (PE = Physical Education) 1. A degree in Physical Education was historically viewed...
True or False: (PE = Physical Education)
1. A degree in Physical Education was historically viewed from a
"generalist" perspective
2. Because of the nature of “physical education activities,” the
physical educator isn’t concerned with standards of health and
moral and ethical development of students.
3. The impulsive developmental aspect can determine attributes such
as character and moral values
4. The advent of "specialization" is not a consequence of the
growing knowledge in the academic discipline of physical education
and...
True or False: (PE = Physical Education) 1. A degree in Physical Education was historically viewed...
True or False: (PE = Physical Education)
1. A degree in Physical Education was historically viewed from a
"generalist" perspective
2. Because of the nature of “physical education activities,” the
physical educator isn’t concerned with standards of health and
moral and ethical development of students.
3. The impulsive developmental aspect can determine attributes such
as character and moral values
4. The advent of "specialization" is not a consequence of the
growing knowledge in the academic discipline of physical education
and...
At an auto parts place, the inspection time for a vehicle is approximately normally distributed with...
At an auto parts place, the inspection time for a vehicle is
approximately normally distributed with the mean 25 minutes and the
standard deviation 3
minutes.
1. What is the probability that a randomly selected car's
inspection time
is between 20 and 31 minutes? Round your answer to three decimal
places.
2. The owner of this auto parts places will give a gift card to
the customer if his
car takes more than the longest 5% of the inspection time....
At an auto parts place, the inspection time for a vehicle is approximately normally distributed with...
At an auto parts place, the inspection time for a vehicle is
approximately normally distributed with the mean 25 minutes and the
standard deviation 3 minutes.
1) What is the probability that a randomly selected car’s
inspection time is between 20 and 31 minutes? Round your answer to
three decimal places.
2) The owner of this auto parts places will give gift card to
customer if his car takes more than the longest 5% of the
inspection time. What is...
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