Question

I'm not sure if these are able to be answered in excel, but so I have the formula?

5. (4 pts) The age of a store manager follows a normal distribution with a mean age of 55 years and a standard deviation of 4 years. What values represent the middle 60% of ages of store managers?

10. (4 pts) PGA Tour Golfers hit the first shot off the tee an average of 280 yards with a standard deviation of 10 yards following a normal distribution. What is the probability a PGA Tour Golfer hits the ball off the tee between 270 yards and 300 yards?

Answer #1

(5) middle 60% is between 20th percentile and 80th percentile

Using excel function NORMINV(area,mean,standard deviation)

we get

Lower value = NORMINV(0.20,55,4) = 51.63

Upper value = NORMINV(0.80,55,4) =58.37

(6) Using excel function NORMDIST(x,mean,standard deviation, cumulative)

we have to find P(270<X<300) = NORMDIST(y,mean,standard deviation, cumulative)-NORMDIST(x,mean,standard deviation, cumulative)

setting x = 270, y = 300, mean = 280, standard deviation = 10, cumulative =TRUE

we get

P(270<X<300) = NORMDIST(300,280,10,TRUE) - NORMDIST(270,280,10,TRUE)

P(270<X<300) = 0.8185

The age of a store manager follows a normal distribution with a
mean age of 60 years and a standard deviation of 5 years. What
values represent the middle 60% of ages of store managers?

The Business College Computing Center wants to determine the
proportion of business students who have laptop computers. If the
proportion is more than from 30%, then the lab will modify a
proposed enlargement of its facilities. Suppose a hypothesis test
is conducted and the test statistic is 2.8. Find the p-value for
a one-sided test of hypothesis.
A. .0026
B..0013
C. .4938
D. .0052
Suppose students' ages follow a skewed right distribution with
a mean of 25 years old and...

Hi can someone please actually EXPLAIN how to do this? I'm
really confused on how to get the answers
Cholesterol is a type of fat found in the blood. It is measured
as a concentration: the number of milligrams of cholesterol found
per deciliter of blood (mg/dL). A high level of total cholesterol
in the bloodstream increases risk for heart disease. For this
problem, assume cholesterol in men and women follows a normal
distribution, and that “adult man” and “adult...

The lifespans (in years) of ten beagles were 11; 9; 9; 8; 11;
12; 12; 10; 10; 11. Calculate the mean of the dataset.
Question 1 options:
1)
103
2)
1.34
3)
10.3
4)
10
5)
10.5
Question 2 (1 point)
Saved
Ten students took a statistics final and their scores were 84.9;
80.1; 78.7; 77; 75.7; 79.1; 80.6; 79.4; 73.8; 79.2. Calculate the
coefficient of variation of the dataset.
Question 2 options:
1)
0.038
2)
235.943
3)
-75.858
4)...

can you please work on this assignment because I am having some
issues with it. I have it completed I would just like to know if
everything is correct.
DISCRETE PROBABILITY DISTRIBUTIONS
(3 points) The number of hits on a certain
website follows a Poisson distribution with a mean rate of 4 per
minute.
What is the probability that 5 messages are received in a given
minute? 0.1563
What is the probability that 9 messages are received in 1.5
minutes?...

In narrative essay format, I want you to address a
business/organization case study using multiple concepts from
class. The case question and case text begin on page 5 of this
document. You need to demonstrate their best understanding of
management and organizational behavior theory, and the application
of those ideas to improve the understanding of various issues. You
need to clearly identify at least 3 distinct, substantive
issues.
For each issue you need to 1), identify evidence from the case...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 19 minutes ago

asked 20 minutes ago

asked 22 minutes ago

asked 33 minutes ago

asked 33 minutes ago

asked 44 minutes ago

asked 47 minutes ago

asked 47 minutes ago

asked 48 minutes ago

asked 53 minutes ago

asked 1 hour ago

asked 1 hour ago