Question
In: Statistics and Probability
Suppose there is a random sample of 200 observations, divided into three groups. The table below...
Suppose there is a random sample of 200 observations, divided into three groups. The table below summarizes the count of observations that were seen in each group.
|
Group 1 |
Group 2 |
Group 3 |
|
102 |
40 |
58 |
We are interested in testing the null hypothesis H0:p1=0.5,p2=0.2,p3=0.3, against the alternative hypothesis HA:Atleastoneproportionisincorrect.
a) What is the value of the test statistic?
Round your response to at least 2 decimal places.
b) What conclusion can be made at the 5% level of significance?
| There is no significant evidence against the null hypothesis, and therefore there is no significant evidence that any of the proportions is not correct. | ||
| There is very strong evidence against the null hypothesis, and therefore it is rejected in favour of the alternative hypothesis that at least one proportion is not correct. |
Solutions
orchestra answered 2 years agoRelated Solutions
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Suppose there is a random sample of 400 observations, divided into four groups. The table below...
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Group 1
Group 2
Group 3
Group 4
240
40
40
80
We are interested in testing the null hypothesis
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a) What is the expected count for each of the groups?
Expected:
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Round your response to at least...
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Group 2
Group 3
Group 4
16
46
51
37
We are interested in testing the null hypothesis
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The data for a random sample of 10 paired observations are shown in the following table....
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Population1
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19
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3
31
36
4
52
53
5
49
55
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34
34
7
59
66
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10
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