Question
In: Statistics and Probability
A sample of 200 teachers showed that 157 of them have a home mortgage. Use significance...
A sample of 200 teachers showed that 157 of them have a home
mortgage. Use significance level .01 to test the claim that more
than 75% of teachers have a home mortgage. state the conclusion for
the test
Solutions
Expert Solution
here is the test for testing given hypothesis
(please UPVOTE)
orchestra answered 2 years agoRelated Solutions
Suppose a preliminary sample of 200 parts produced by a machine showed that 7% of them...
Suppose a preliminary sample of 200 parts produced by a machine
showed that 7% of them are defective. How large a sample should the
company select so that the 95% confidence interval for p is within
.02 of the population proportion?
In 1997, a survey of 840 households showed that 131of them use e-mail. Use those sample...
In 1997, a survey of 840 households showed that 131of them use
e-mail. Use those sample results to test the claim that more than
15% of households use e-mail. Use a 0.05 significance level. Use
this information to answer the following questions.
A random sample of 200 books purchased at a local bookstore showed that 72 of the...
A random sample of 200 books purchased at a local bookstore
showed that 72 of the books were murder mysteries. Let ?? be the
true proportion of books sold by this store that are murder
mysteries. Test the claim at the 1% level of significance that half
of the books are sold.
a) Details given in the problem:
b) Assumptions (if any):
c) Null, Alternate Hypotheses and the tail test?
H0:
H1:
Tail?
d) Find the Critical Statistic (Table value)...
A random sample of 200 books purchased at a local bookstore showed that 72 of the...
A random sample of 200 books purchased at a local bookstore
showed that 72 of the books were murder mysteries. Let p be the
true proportion of books sold by this store that is murder mystery.
Construct a confidence in terval with a 95% degree of
confidence.Compute the following:
a.Point estimate
b.Critical value
c.Margin of error
d.Confidence interval
e.Interpretation(confidence statement).
Let’s consinder a mortgage application using HMDA (The Home Mortgage Disclosure Act). Here is a sample...
Let’s consinder a mortgage application using HMDA (The Home
Mortgage Disclosure Act). Here is a sample from 30 mortgage
applications.
ID
Loanamt
Income
hprice
1
109
63
155
2
185
137
264
3
121
53
128
4
125
78
125
5
119
37
149
6
153
65
171
7
380
188
484
8
100
58
125
9
110
78
158
10
41
31
116.5
11
115
54
128
12
248
117
280
13
126
60
157.5
14
260
192
325...
A random sample of 100 patients at RWJ Hospital showed that 45 of them are middle...
A random sample of 100 patients at RWJ Hospital showed that 45
of them are middle income. Using 99% level of confidence, estimate
the percentage of middle income patients of the hospital.
A sample of 500 male registered voters showed that 57% of them voted in the last...
A sample of 500 male registered voters showed that 57% of them
voted in the last presidential election. Another sample of 400
female registered voters showed that 55% of them voted in the same
election.
a. Construct a 97% confidence interval for the difference
between the proportions of all male and all female registered
voters who voted in the last presidential election.
b. Test at the 1% significance level whether the proportion of
all male voters who voted in the...
A) In 1997, a survey of 820 households showed that 137 of them use e-mail. Use...
A) In 1997, a survey of 820 households showed that 137 of them
use e-mail. Use those sample results to test the claim that more
than 15% of households use e-mail. Use a 0.05 significance level.
Use this information to answer the following questions.
What is the P-value?
B) In a study of 420,149 cell phone users, 115 subjects
developed cancer of the brain or nervous system. Test the claim of
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You have just purchased a home and taken out a $410,000 mortgage. The mortgage has a...
You have just purchased a home and taken out a $410,000
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and an APR of 5.12%.
a. How much will you pay in interest, and how much will you pay
in principal, during the first year?
b. How much will you pay in interest, and how much will you pay
in principal, during the 20th year (i.e., between 19 and 20 years
from now)?
You have just purchased a home and taken out a $590,000 mortgage. The mortgage has a...
You have just purchased a home and taken out a $590,000
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and an APR of 5.92%.
a. How much will you pay in interest, and how much will you pay
in principal, during the first year?
b. How much will you pay in interest, and how much will you pay
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