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 1 year 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 3
Group 4
240
40
40
80
We are interested in testing the null hypothesis
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Round your response to at least...
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Group 2
Group 3
Group 4
16
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51
37
We are interested in testing the null hypothesis
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c. Find a 99% confidence interval for mu Subscript d. Interpret this result.
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A sample of soy bean plots were divided into three equal groups in a completely randomized...
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wk 2
wk 3
11
10
13
10
15
17...
Suppose a random sample of n = 5 observations is selected from a population that is...
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x.
mean
standard deviation
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Observation
Y
X1
X2
1
87
95
11
2
86
94
11
3
84
94
11
4
83
93
12
5
84
93
12
Use Excel's Regression tool to answer the following questions.
To copy the data set, highlight the table, press Ctrl-c, click on
the Excel cell to which you want to copy,...
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