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In: Statistics and Probability
The average February temperature in Indiana is normally distributed with a mean of 28.89 degree and...
The average February temperature in Indiana is normally distributed with a mean of 28.89 degree and a variance of 26.16 degree (X~N(28.89,26.16)). The average February 2017 temperature is 42.85 degree. What is the probability that the average February temperature is greater than 42.85 degree?
Solutions
orchestra answered 1 year agoRelated Solutions
The starting salaries of individuals with an MBA degree are normally distributed with a mean of...
The starting salaries of individuals with an MBA degree are
normally distributed with a mean of $90,000 and a standard
deviation of $20,000. Suppose we randomly select 16 of these
individuals with an MBA degree. What is the standard deviation of
the average starting salary for these
individuals?
a.
$4,000
b.
$5,000
c.
$20,000
d.
$1,666.67
The starting salaries of individuals with an MBA degree are normally distributed with a mean of...
The starting salaries of individuals with an MBA degree are
normally distributed with a mean of $90,000 and a standard
deviation of $20,000. Suppose we randomly select 16 of these
individuals with an MBA degree. What is the probability that the
average starting salary for these individuals is
at least $85,800?
0.7995
0.9131
0.2005
-0.2611
It is known that the average body temperature of healthy individuals is is normally distributed with...
It is known that the average body temperature of healthy
individuals is is normally distributed with a mean, μ = 37
oC and standard deviation, σ = 0.6
oC.
We found the average temperature of a random sample of
24 SIBT students in a Statistics tutorial.
What is the probability that the average body temperature of
this sample of students will be less than 37.4
oC? (4 dp)
Answer
What is the probability that average body temperature of these
students...
1. The daily temperature in August in a region is normally distributed with a mean of...
1. The daily temperature in August in a region is normally
distributed with a mean of 86 degrees F and a standard deviation of
4 degrees F. What is the probability (4 significant figures) that a
daily temperature would be 72 degrees F or less? Would this be
considered unusual, or not unusual?
2. The daily temperature in August in a region is normally
distributed with a mean of 86 degrees F and a standard deviation of
4 degrees F....
The body temperature of adults is normally distributed with a mean of 98.6°F and standard deviation...
The body temperature of adults is normally distributed with a
mean of 98.6°F and standard deviation of 0.60°F. Suppose 36 adults
are randomly selected, what is the probability that their mean body
temperature is less than 98.0°F?
The average of height of male adults is normally distributed with a mean of 69.1 inches...
The average of height of male adults is normally distributed
with a mean of 69.1 inches and standard deviation of. 2.9. above
what height would an adult male need to be in the top 10% by
height?
Answer is k=72.812. Please explain how to do this
The average of height of male adults is normally distributed with a mean of 69.1 inches...
The average of height of male adults is normally distributed
with a mean of 69.1 inches and standard deviation of. 2.9. above
what height would an adult male need to be in the top 10% by
height?
Answer is k=72.812. Please explain how to do this
The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 8 years...
The average lifespan of a CleanFreek dishwasher is normally
distributed with a mean of 8 years and a standard deviation of 1.5
years.
Standard Normal Distribution Table
a. What is the probability that a CleanFreek
dishwasher will last longer than 12 years?
P(X > 12)=P(X > 12)=
b. What is the probability that a CleanFreek
dishwasher will last fewer than 7 years?
P(X < 7)=P(X < 7)=
c. What length warranty should be established
on the dishwashers so that no...
Suppose that the average number of Facebook friends users have is normally distributed with a mean...
Suppose that the average number of Facebook friends users have
is normally distributed with a mean of 144 and a standard deviation
of about 52. Assume fourteen individuals are randomly chosen.
Answer the following questions. Round all answers to 4 decimal
places where possible.
For the group of 14, find the probability that the average
number of friends is less than 145.
Find the first quartile for the average number of Facebook
friends.
For part b), is the assumption that...
Suppose that the average number of Facebook friends users have is normally distributed with a mean...
Suppose that the average number of Facebook friends users have
is normally distributed with a mean of 119 and a standard deviation
of about 41. Assume forty-five individuals are randomly chosen.
Answer the following questions. Round all answers to 4 decimal
places where possible.
What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
For the group of 45, find the probability that the average
number of friends is more than 114.
Find the third quartile for the average number of...
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