Question

1. In an effort to reduce energy costs, a major university has installed more efficient lights as well as automatic sensors that turn the lights off when no movement is present in a room. Historically, the cost of lighting an average classroom for 1 week has been $265. To determine whether the changes have signficantly reduced costs, the university takes a sample of 50 classrooms. They find that the average cost for 1 week is $247 with a standard deviation of $60. When testing the hypothesis (at the 5% level of significance) that the average energy use has decreased from the past, what is the p-value? (please round your answer to 4 decimal places)

2. An online stock trading company makes part of their revenue from clients when the clients trade stocks therefore, it is important to the company to have an good idea of how many trades its clients are making in a given year. In a sample of 84 clients of an online stock trading company, the average number of trades per year was 58 with a standard deviation of 20. Find the LOWER bound of the 95% confidence level of the average number of trades the company’s clients make. (please express your answer using 2 decimal places)

3. Suppose that a grocery store buys milk for $2.10 and sells it for $2.60. If the milk gets old then the grocery store can sell their unsold milk back to their wholesaler for $0.60 (so the grocery store loses $1.50 on each gallon that it has to sell back to the wholesaler). Suppose that the demand for milk is normally distributed with a mean of 2,226 gallons per week and a standard deviation of 408 gallons per week. The grocery store needs to decide how much milk to order. Suppose that instead of trying to maximize their expected profits, the store wanted to be 90% sure that they have enough milk to satisfy demand. How much milk should they order?

4. Suppose that the number of guests per month that members of a
country club bring to golf is given by the following probability
distribution:

56% of the members don't have any guests each month, 17% of the
members have 1 guest per month to the club; 10% of the members have
2 guests per month; and the remaining members have 3 guests per
month.

What is the expected value of the number of guests that members
bring out each month? (please express your answer using 2 decimal
places)

5. An online stock trading company makes part of their revenue from clients when the clients trade stocks therefore, it is important to the company to have an good idea of how many trades its clients are making in a given year. In a sample of 103 clients of an online stock trading company, the average number of trades per year was 80 with a standard deviation of 16. If you were to test the hypothesis that theaverage number of trades per year is different than the previous year when the average number of trades was 85 (using the % level of significance), what is the test statistic? (please round your answer to 2 decimal places)

Answer #1

We would be looking at question 1 here as:

Q1) As we are testing here whether the cost of lighting an average classroom for 1 week is less than $265, therefore the test statistic here is computed as:

For n - 1 = 49 degrees of freedom, we get the p-value from the t
distribution tables here as:

p = P( t49 < -2.1213) = 0.0195

**Therefore 0.0195 is the required p-value
here.**

As the p-value here is 0.0195 < 0.05 which is the level of significance, therefore we have sufficient evidence here that the average cost for 1 week is less than $265

1. An online stock trading company makes part of their revenue
from clients when the clients trade stocks therefore, it is
important to the company to have an good idea of how many trades
its clients are making in a given year. In a sample of 111 clients
of an online stock trading company, the average number of trades
per year was 89 with a standard deviation of 18. If you were to
test the hypothesis that the average number...

1. An inventor has developed a new, energy-efficient lawn mower
engine and claims that the engine will run continuously at least
300 minutes on a single gallon of regular gasoline. From his stock
of 2000 engines, the inventor selects a simple random sample of 15
engines for testing. The engines run for an average of 305 minutes,
with a sample standard deviation of 20 minutes. To test the
inventors claim we use: Question 1 options:
Two sided Z- test
One...

Please show the Work
Question 1 A lawnmower manufacturer has the
following data:
Unit revenue: $200
Unit variable cost: $75
Fixed costs: $400,000 (annually)
Given the above data, what are:
The profit/loss for annual production = 5000?
The annual production at the break-even point?
The profit/loss for annual production = zero?
Question 2 A car engine manufacturer has the
following production goals for the next year:
Engine
Quantity
Machine Req’s
V6
2000
6hrs
V8
1500
10hrs
V12
100
20hrs
If...

Question 1 (1 point)
You own a small storefront retail business and are interested in
determining the average amount of money a typical customer spends
per visit to your store. You take a random sample over the course
of a month for 8 customers and find that the average dollar amount
spent per transaction per customer is $106.745 with a standard
deviation of $13.7164. Create a 95% confidence interval for the
true average spent for all customers per transaction.
Question...

1. The use of a production smoothing
strategy creates inventory for products that experience a seasonal
fluctuation in demand. True or False ?
2. Companies belonging to the same
industry segment should have the same inventory
turns. True or False ?
3. Which of the following is a work-in-process inventory for
C&A Bakery?
A. Flour
B. Cupcakes freshly out of the oven
C. Ovens
D. Cupcake mix prepared from scratch
4. C&A has on average $6000 in inventory and its daily...

PLEASE ANSWER THEM ALL, WILL GIVE THUMBS UP
1) Which Statement is True?
a) ABC Corp. has a return on investment (ROI) of 12% and a
weighted average cost of capital (WACC) of 11%, while XYZ Corp. has
an ROI of 10% and a WACC of 8%. In this situation, XYZ is
performing better than ABC because XYZ is generating a higher
Economic Value Added (EVA)
b) If you were super rich and had a huge portfolio of stocks
that...

You are working for The Good, The
Bad and the Ugly Inc. in the country called Wild Wild West which
does not have any corporate taxes. Currently the company has 30%
debt, 70% equity capital structure. The company has 500,000 shares
of common stock outstanding. Suppose the required rate of return on
the debt of the company is 9.1% per year. The current EBIT of the
company is $2 million and the EBIT of the company is expected to
grow...

Financial information for the project:
1. You decide to open a small business in Charleston, WV that will
cater primarily to busy office workers downtown. You are going to
offer a gourmet box lunch to be delivered to any office with a
minimum number of 5 orders. This lunch will include a gourmet
sandwich, a bag of chips, a cookie, and a bottle of water. Because
you are using only the finest ingredients, you will charge $9.15per
lunch.
2. The...

For each of the following independent
situations and from the information below record the
adjusting entry (and only the adjusting entry
– do not record the original transaction
or opening balance) in the General Journal, being as
precise with your account titles as possible, e.g. not using
“supplies” but “supplies expense” or “supplies on hand”. Please
ignore GST. All calculations are to be worked out on a monthly (not
daily) basis.
Note: alternative versions of some of the
questions are...

Pallets of Cake Mix Demanded
Probability
Cumulative
Probability
Fewer than 2
0.10
0.10
2
0.30
0.40
3
0.55
0.95
4
0.04
0.99
5
0.007
0.997
6
0.003
1.00
Sum:
1
Just Baked grew from one retail store in 2009 to thirteen stores
in early 2013. Demand for cupcakes exhibits patterns based on
seasons, store location, day of the week, and time of day. The
"freshness promise" implicit in the name Just Baked has to be
supported by the daily baking...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 8 minutes ago

asked 30 minutes ago

asked 30 minutes ago

asked 33 minutes ago

asked 45 minutes ago

asked 46 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago