Question
In: Statistics and Probability
you will propose a hypothesis test that will test a claim that is of interest to...
you will propose a hypothesis test that will test a
claim that is of interest to you in the business world. Then
describe how you would gather a representative sample to test that
claim.
1. state the claim you wish to investigate in your own words.
2. write a null and alternative hypothesis.
3. describe how you will gather a representative sample to test
your claim.
4. state the type of test you would use for example,
TTest,1PropZTest, etc.
Solutions
Expert Solution
We state the situation mentioned and we the
one sample z test as the sample size(80) > 30. The test
statistic is calculated using the formula mentioned. The critical
value is obtained from STATKEY (image attached for reference).We
compare the test statistic with the critical value and make the
required conclusion.
orchestra answered 2 years agoRelated Solutions
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My problem is:
I asked 10 teenagers how many times this monthnhave thely used a
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My results are as following: 2,0,1,1,0,0,3,0,1,0
I'd like to propose that the population mean for the amount of
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Think about a population mean that you may be interested in and
propose a hypothesis test problem for this parameter. Gather
appropriate data and post your problem, Also, post your own
solution at the end.
For example, you may believe that the population mean number of
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Your data could be that you spoke with 7 people and found that they
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You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4...
You are conducting a multinomial Goodness of Fit hypothesis test
for the claim that the 4 categories occur with the following
frequencies:
HoHo :
pA=0.4pA=0.4; pB=0.25pB=0.25; pC=0.25pC=0.25; pD=0.1pD=0.1
Complete the table. Report all answers accurate to three decimal
places.
Category
Observed
Frequency
Expected
Frequency
A
34
36
B
11
22.5
C
15
22.5
D
30
9
What is the chi-square test-statistic for this data?
χ2=χ2= 57.489
What is the P-Value?
P-Value = 0
For significance level alpha 0.025, what would be the conclusion...
You are conducting a Goodness of Fit hypothesis test for the claim that the 4 categories...
You are conducting a Goodness of Fit hypothesis test for the
claim that the 4 categories occur with the following
frequencies:
H0H0 : pA=0.15pA=0.15; pB=0.3pB=0.3; pC=0.15pC=0.15;
pD=0.4pD=0.4
Give all answers as decimals rounded to 3 places after
the decimal point, if necessary.
Complete the table:
Category
Observed
Frequency
Expected
Frequency
A
29
B
56
C
29
D
50
What is the chi-square test-statistic for this
data?
Test Statistic: χ2=χ2=
For a significance of level alpha = 0.005, what is the...
You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with...
You are conducting a multinomial hypothesis test for the claim
that the 4 categories occur with the following frequencies: H o : p
A = 0.25 ; p B = 0.25 ; p C = 0.1 ; p D = 0.4 Category Observed
Frequency A 31 B 26 C 7 D 52 What is the chi-square test-statistic
for this data? χ 2 =
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You are conducting a multinomial hypothesis test ( α = 0.05) for
the claim that all 5 categories are equally likely to be
selected.
Category
Observed
Frequency
A
23
B
17
C
13
D
19
E
5
What is the chi-square test-statistic for this data?
χ2=χ2=
What are the degrees of freedom for this test?
d.f. =
What is the p-value for this sample? (Report answer accurate to
four decimal places.)
p-value =
The p-value is...
less than (or equal...
You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4...
You are conducting a multinomial Goodness of Fit hypothesis test
for the claim that the 4 categories occur with the following
frequencies:
Ho: pA=0.4; pB=0.1; pC=0.3; pD=0.2
Complete the table. Report all answers accurate to three decimal
places.
Category
Observed
Frequency
Expected
Frequency
A
30
B
4
C
22
D
19
What is the chi-square test-statistic for this data?
χ2=
What is the P-Value?
P-Value =
For significance level alpha 0.005,
What would be the conclusion of this hypothesis test?...
You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4...
You are conducting a multinomial Goodness of Fit hypothesis test
for the claim that the 4 categories occur with the following
frequencies:
HoHo :
pA=0.4pA=0.4; pB=0.2pB=0.2; pC=0.1pC=0.1; pD=0.3
CATEGORY
OBSERVED FREQUENCY
EXPECTED FREQUENCY
RESIDUAL
A
41
B
9
C
25
D
47
What is the chi-square test-statistic for this data?
χ2
For significance level alpha 0.025, what is the chi-square
Critical Value?
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