Question

Use the sample data below to test the hypotheses

:

: Not all population proportions are the same

Populations |
|||

Response |
1 |
2 |
3 |

Yes |
200 | 200 | 91 |

No |
150 | 200 | 109 |

where is the population proportion of yes responses for population . Using a level of significance 0.05.

The p-value is - Select your answer -less than .005between .005 and .01between .01 and .025between .025 and .05between .05 and .10greater than .10

What is your
conclusion?

- Select your answer -Conclude not all population proportions are
equal.Conclude all population proportions are equal.

Answer #1

The following table
contains observed frequencies for a sample of 200.
Column
Variable
Row Variable
A
B
C
P
40
48
45
Q
10
22
35
Test for independence
of the row and column variables using a=05 .
Compute the value of
the test statistic (to 2 decimals).
The P-value is -
Select your answer -less than .005between .005 and .01between .01
and .025between .025 and .05between .05 and .10greater than .10
What is your
conclusion?
- Select your answer...

est the following hypotheses by using the χ 2
goodness of fit test.
H 0:
p A = 0.4, p B = 0.2,
and p C = 0.4
Ha:
The population proportions are not
p A = 0.4 , p B = 0.2 ,
and p C = 0.4
A sample of size 200 yielded 50 in category A, 120 in category
B, and 30 in category C. Use = .01 and test to see
whether the proportions are as stated...

The calculations for a factorial experiment involving four
levels of factor A, three levels of factor B, and three
replications resulted in the following data: ,STT = 261, SSA=21,
SSB=22, SSAB=165
Set up the ANOVA table and test for significance using a=.05 .
Show entries to 2 decimals, if necessary. If the answer is zero
enter “0”.
Source of Variation
Sum of Squares
Degrees of Freedom
Mean Square
F
p-value
Factor A
Factor B
Interaction
Error
Total
The -value for...

Use the sample data to test the hypothesis. H0:p1=p2=p3. Ha:Not
all population proportions are the same
Population 1: yes 150 no 100. Population 2: yes 150 no 150.
Population 3: yes 91 no 109.
where Pi is the population proportion of yes responses for
population i. Using a .05 level of significance.
Compute the sample proportion for each population. Round your
answers to two decimal places. P1=? P2=?P3?
Use the multiple comparison procedure to determine which
population proportions differ significantly....

In an experiment designed to test the output levels of three
different treatments, the following results were obtained: SST= 420
SSTR=150 NT=19. Set up the ANOVA table and test for any significant
difference between the mean output levels of the three treatments.
Use A=.05.
Source
of Variation
Sum
of Squares
Degrees
of Freedom
Mean Square
(to 2 decimals)
(to 2 decimals)
-value
(to 4 decimals)
Treatments
150
Error
Total
420
The P-value is - Select your answer -less than .01between...

Use the sample data below to test the hypothese. H0: p1=p2=p3.
Ha: Not all population proportions are the same.
Population 1: yes 150 no 100. Population 2: yes 150 no 150.
Population 3 yes 97 no 103.
Where Pi is the population proportion of yes responses for
population i. Using a .05 level of significance the
p-value=____?

xi
2
6
9
13
20
yi
7
18
9
26
23
The estimated regression equation is ŷ = 7.6 +
.9x.
What is the value of the standard error of the estimate (to 4
decimals)?
What is the value of the t test statistic (to 2
decimals)?
What is the p-value?
- Select your answer -less than .01between .01 and .02between .02
and .05between .05 and .10between .10 and .20between .20 and
.40greater than .40Item 3
What is your...

Use the sample data below to test the hypotheses
H 0: p 1
= p 2 = p
3
H a: Not all population proportions are the
same
Populations
Response
1
2
3
Yes
150
150
92
No
100
150
108
where p i is the population
proportion of yes responses for population i.
Using a .05 level of significance. Use Table 12.4.
a. Compute the sample proportion for each
population. Round your answers to two decimal places.
p̄ 1 =
p̄ 2 =
p̄...

Test the following hypotheses by using the χ 2
goodness of fit test.
H 0:
p A = 0.2, p B = 0.4,
and p C = 0.4
Ha:
The population proportions are not
p A = 0.2 , p B = 0.4 ,
and p C = 0.4
A sample of size 200 yielded 40 in category A, 120 in category
B, and 40 in category C. Use = .01 and test to see
whether the proportions are as stated...

An amusement park studied methods for decreasing the waiting
time (minutes) for rides by loading and unloading riders more
efficiently. Two alternative loading/unloading methods have been
proposed. To account for potential differences due to the type of
ride and the possible interaction between the method of loading and
unloading and the type of ride, a factorial experiment was
designed. Use the following data to test for any significant effect
due to the loading and unloading method, the type of ride,...

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