The type of househald for the U.S. population and for a random sample of 411 households from a community in Montana are shown below. Observed Number Percent of U.S. of Households in Type of Household Married with children Households the Community 26% 110 Married, no children Single parent One person Other (eg., roammates, sibilings) 29% 101 32 25% 98 11% 70 Use a 5% level of significance to test the claim that the distribution of U.S. househalds fits the Dove Creek distribution. (a) What is the level of significance? State the nul and alternate hypotheses. O Ha: The distributions are different. H: The distributions are the same. O Hg: The distributions are the same. H: The distributions are different. O Hg: The distributions are the same. H: The distributions are the same. O Hg: The distributions are different. H: The distributions are different. (b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to twa decimal places. Round the test statistic to three decimal places.) Are all the expected frequencies greater than 57 O Yes O No What sampling distribution will you use? O binomial O uniform O Student's E O chi-square O normal What are the degrees of freedom? (C) Find or estimate the Pvalue of the sample test statistic. (Round your answer to three decimal places.) (d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis that the population fits the specified distribution af categories? O Since the P-value > a, we fail to reject the null hypothesis. O Since the P-value > a, we reject the null hypothesis. O Since the P-value sa, we reject the null hypothesis. O Since the P-value sa, we fall to reject the null hypothesis. (e) Interpret your condusion in the context of the application. O At the 5% level of significance, the evidence is sufficient to condude that the community household distribution does nat fit the general U.S. household distribution. O At the 5% level of significance, the evidence is insufficient to conclude that the community household distribution does not fit the general U.S. household distribution.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The type of household for the U.S. population and for a random sample of 411 households from a community in Montana are shown below.
Observed Number
of Households in
the Community
Percent of U.S.
Type of Household
Households
Married with children
26%
110
Married, no children
Single parent
One person
Other (e.g., roommates, siblings)
29%
101
32
25%
98
11%
70
Use a 5% level of significance to test the claim that the distribution of U.S. households fits the Dove Creek distribution.
(a) What is the level of significance?
State the nul and alternate hypotheses.
O Ho: The distributions are different.
H: The distributions are the same.
O Hg: The distributions are the same.
H: The distributions are different.
O Hg: The distributions are the same.
H: The distributions are the same.
O Hg: The distributions are different.
H: The distributions are different.
(b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to two decimal places. Round the test statistic to three decimal places.)
Are all the expected frequencies greater than 5?
O Yes
O No
What sampling distribution will you use?
O binomial
O uniform
O Student's E
O chi-square
O normal
What are the degrees of freedom?
(C) Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.)
(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis that the population fits the specified distribution of categories?
O Since the P-value > a, we fall to reject the null hypothesis.
O Since the P-value > a, we reject the null hypothesis.
O Since the P-value sa, we reject the null hypothesis.
O Since the P-value s a, we fall to reject the null hypothesis.
(e) Interpret your condusion in the context of the application.
O At the 5% level of significance, the evidence is sufficient to condude that the community household distribution does not fit the general U.S. household distribution.
O At the 5% level of significance, the evidence is insufficient to conclude that the community household distribution does not fit the general U.S. household distribution.
Transcribed Image Text:The type of household for the U.S. population and for a random sample of 411 households from a community in Montana are shown below. Observed Number of Households in the Community Percent of U.S. Type of Household Households Married with children 26% 110 Married, no children Single parent One person Other (e.g., roommates, siblings) 29% 101 32 25% 98 11% 70 Use a 5% level of significance to test the claim that the distribution of U.S. households fits the Dove Creek distribution. (a) What is the level of significance? State the nul and alternate hypotheses. O Ho: The distributions are different. H: The distributions are the same. O Hg: The distributions are the same. H: The distributions are different. O Hg: The distributions are the same. H: The distributions are the same. O Hg: The distributions are different. H: The distributions are different. (b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to two decimal places. Round the test statistic to three decimal places.) Are all the expected frequencies greater than 5? O Yes O No What sampling distribution will you use? O binomial O uniform O Student's E O chi-square O normal What are the degrees of freedom? (C) Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.) (d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis that the population fits the specified distribution of categories? O Since the P-value > a, we fall to reject the null hypothesis. O Since the P-value > a, we reject the null hypothesis. O Since the P-value sa, we reject the null hypothesis. O Since the P-value s a, we fall to reject the null hypothesis. (e) Interpret your condusion in the context of the application. O At the 5% level of significance, the evidence is sufficient to condude that the community household distribution does not fit the general U.S. household distribution. O At the 5% level of significance, the evidence is insufficient to conclude that the community household distribution does not fit the general U.S. household distribution.
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