Question
In: Statistics and Probability
The observed frequencies of sales of different colours of cars are shown in the following table:...
The observed frequencies of sales of different colours of cars are shown in the following table:
|
Category colour |
Black |
Red |
Green |
White |
Blue |
|
Observed Frequencies |
20 |
30 |
25 |
25 |
46 |
Calculate the chi-square test statistic to test the claim of equal probabilities.
Solutions
orchestra answered 3 years agoRelated Solutions
The observed frequencies of sales of different colours of cars are shown in the following table:...
The observed
frequencies of sales of different colours of cars are shown in the
following table:
Category colour
Black
Red
Green
White
Blue
Observed
Frequencies
20
30
25
25
48
Calculate the
chi-square test statistic to test the claim of equal
probabilities.
(Round off the answer
to 2 decimal digits.)
The observed frequencies of sales of different colours of cars are shown in the following table:...
The observed frequencies of sales of different colours of cars
are shown in the following table:
Category colour
Black
Red
Green
White
Blue
Observed Frequencies
20
30
25
25
48
Calculate the chi-square test statistic to test the claim of
equal probabilities.
(Round off the answer to 2 decimal digits.)
The following table contains observed frequencies for a sample of 200. Column Variable Row Variable A...
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 -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
-Cannot...
The following table contains observed frequencies for a sample of 200. Row Variable Column Variable A...
The following table contains observed frequencies for a sample
of 200.
Row
Variable
Column Variable
A
B
C
P
16
40
46
Q
34
30
34
Test for independence of the row and column variables using
α = 0.05.
State the null and alternative hypotheses.
H0: Variable P is not independent of
variable Q. Ha: Variable P is independent of
variable Q.
H0: Variable P is independent of variable
Q.Ha: Variable P is not independent of variable
Q.
H0: The...
The following table contains observed frequencies for a sample of 200. Column Variable Row Variable A...
The following table contains observed frequencies for a sample
of 200.
Column
Variable
Row Variable
A
B
C
P
20
45
50
Q
30
26
29
Test for independence of the row and column variables
using α = .05.
Compute the value of the Χ 2 test statistic (to
2 decimals).
The following table contains observed frequencies for a sample of 200. Column Variable Row Variable A...
The following table contains observed frequencies for a sample
of 200.
Column Variable
Row Variable
A
B
C
P
20
44
50
Q
30
26
30
Test for independence of the row and column variables using a=
.05
Compute the value of the test statistic (to 2
decimals).
The table below lists the observed frequencies for all four categories for an experiment.
The table below lists the observed frequencies for all four
categories for an experiment.
__________________________
Category 1 2 3 4
___________________________
Observed Frequency 12 14 18 16
_____________________________
The null hypothesis for the goodness-of-fit test is that the
proportion of all elements of the population that belong to each of
the four categories is the same. What is the expected frequency for
the second category?
The null hypothesis for the goodness-of-fit test is that the
proportion of all elements of...
Consider the following contingency table of observed frequencies. Complete parts a. through d. below. Click the...
Consider the following contingency table of observed
frequencies. Complete parts a. through d. below.
Click the icon to view the contingency table.
Column Variable
Row Variable C1 C2 C3
R1 11 9 12
R2 11 6 6
a. Identify the null and alternative hypotheses for a
chi-square test of independence with based on the information in
the table. This test will have a significance level of alpha
α=0.01. Choose the correct answer below.
A. H0: The...
The worldwide sales of cars from 1981-1990 are shown in the table below. Given: α =...
The worldwide sales of cars from 1981-1990 are shown in the
table below. Given: α = 0.2 and β = 0.15 (Hint: Use XLMiner) Year
Units sold in thousands 1981 888 1982 900 1983 1000 1984 1200 1985
1100 1986 1300 1987 1250 1988 1150 1989 1100 1990 1200 Using the
double exponential smoothing, find the value of the root mean
square error for the given data.
Consider the following contingency table of observed frequencies. Complete parts a. through d. below. Column Variable...
Consider the following contingency table of observed
frequencies. Complete parts a. through d. below.
Column Variable
Row Variable
C1
C2
C3
R1
7
6
9
R2
11
9
8
a. Identify the null and alternative hypotheses for a
chi-square test of independence with based on the information in
the table. This test will have a significance level of
α=0.05.
Choose the correct answer below.
A.
H0:
The variables
R1,
R2,
C1,
C2,
and
C3
are independent.
H1:
At least one...
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