Question
(13) The average tuition and room and board cost at a small private liberal arts college...
(13) The average tuition and room and board cost at a small private liberal arts college is reported to be $20,000 per term. A study of 400 small liberal arts colleges find that the average cost per term is $20,100. The population standard deviation is $1,500. If α = 0.05, what is your decision about the average cost?
Homework Answers
Answer #1
H0: 
= 20000
Ha: 
20000
Test statistics
z = 
- /
/ sqrt(n)
= 20100 - 20000 / 1500 / sqrt(400)
= 1.33
Critical value at 0.05 level = -1.96 , 1.96
Since test statistics falls in non-rejection region, we do not have sufficient evidence to reject H0.
Not the answer you're looking for?
Similar Questions
(12) The average tuition and room and board cost at a small private liberal arts college...
(12) The average tuition and room and board cost at a small
private liberal arts college is reported to be $20,000 per term. A
study of 400 small liberal arts colleges find that the average cost
per term is $20,100. The population standard deviation is $1,500.
If α = 0.05, what is the p- value for the test: Ho: µ= 20,000?
The average tuition and room and board cost at a small private liberal arts college is...
The average tuition and room and board cost at a small private
liberal arts college is reported to be $20,000 per term. A study of
400 small liberal arts colleges find that the average cost per term
is $20,100. The population standard deviation is $1,500. What is
the 95 percent confidence limit for estimated population mean?
The average cost of tuition and room and board at a small private liberal arts college...
The average cost of tuition and room and board at a small
private liberal arts college is reported to be $8,500 per term. A
financial administrator believes that the average cost is higher. A
study conducted using 350 small liberal arts colleges showed that
the average cost per term is $8,745. The population standard
deviation is $1,200. Let α = 0.05. What is the p-value for this
test?
A. 0.0000
B. 0.0124
C. 0.4938
D. 0.0500
The average cost of tuition plus room and board for a small private liberal arts college...
The average cost of tuition plus room and board for a small
private liberal arts college is reported to be $8,500 per term, but
a financial administrator believes that the average cost is higher.
A study conducted using 350 small liberal arts colleges showed that
the average cost per term is $8,745. The population standard
deviation is $1,200. Let α = 0.01. What is the critical z-value for
this test?
Please show work
The average cost of tuition, room and board at small private liberal arts colleges is reported...
The average cost of tuition, room and board at small private
liberal arts colleges is reported to be $9,000 per term, but a
financial administrator believes that the average cost is higher. A
study conducted using 450 small liberal arts colleges showed that
the average cost per term is $9,700 with a standard deviation of
$1,500. Let level of significance= 0.05. What is the critical
z-value for this test?
A- 1.96
B- (-1.96)
c- 1.65
D- (-1.65)
The average cost of tuition, room and board at community colleges is reported to be $11,500...
The average cost of tuition, room and board at community
colleges is reported to be $11,500 per year, but a financial
administrator believes that the average cost is higher. A study
conducted using 150 community colleges showed that the average cost
per year is $12,000 with a standard deviation of $1,200. Let α =
0.05.
What are the null and alternative hypotheses for this study?
The average annual cost (including tuition, room, board, books, and fees) to attend a public college...
The average annual cost (including tuition, room, board, books,
and fees) to attend a public college takes nearly a third of the
annual income of a typical family with college-age children.† At
private colleges, the average annual cost is equal to about 60% of
the typical family's income. The following random samples show the
annual cost of attending private and public colleges. Data are in
thousands of dollars.
Private Colleges 52.8, 42.2, 44.0, 34.3, 44.0, 29.6, 46.8, 36.8,
51.5, 41.0...
The increasing annual cost (including tuition, room, board, books, and fees) to attend college has been...
The increasing annual cost (including tuition, room, board,
books, and fees) to attend college has been widely discussed
(Time.com). The following random samples show the annual
cost of attending private and public colleges. Data are in
thousands of dollars.
Private Colleges
52.8
43.2
46.0
34.3
43.0
29.6
45.8
36.8
51.5
43.0
Public Colleges
20.3
22.0
28.2
15.6
24.1
28.5
22.8
25.8
18.5
25.6
14.4
21.8
A. Compute the sample mean (in thousand dollars) and sample
standard deviation (in thousand dollars)...
The increasing annual cost (including tuition, room, board, books, and fees) to attend college has been...
The increasing annual cost (including tuition, room, board,
books, and fees) to attend college has been widely discussed
(Time.com). The following random samples show the annual
cost of attending private and public colleges. Data are in
thousands of dollars.
Private Colleges
52.8
44.2
45.0
34.3
45.0
29.6
46.8
38.8
49.5
42.0
Public Colleges
20.3
22.0
28.2
15.6
24.1
28.5
22.8
25.8
18.5
25.6
14.4
21.8
(a)
Compute the sample mean (in thousand dollars) and sample
standard deviation (in thousand dollars)...
According to the College Board, the average cost for one year of tuition, room and board,...
According to the College Board, the average cost for one year of
tuition, room and board, and fees at public 4-year universities was
$12,837 in 2006. The average cost increased to $20,092 by 2016.
(a) Fill in the blank. Show your work.
The average cost of a year of college rose by _____% from 2006
to 2016
(b) Fill in the blank. Show your work.
The average cost of a year of college was _____% less in 2006 to
2016...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 4 minutes ago
asked 19 minutes ago
asked 20 minutes ago
asked 22 minutes ago
asked 33 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago