Among a simple random sample of 331 American adults who do not
have a four-year college degree and are not currently enrolled in
school, 48% said they decided not to go to college because they
could not afford school.
(a) A newspaper article states that only a minority of the
Americans who decide not to go to college do so because they cannot
afford it and uses the point estimate from this survey as evidence.
Conduct a hypothesis test to determine if these data provide strong
evidence supporting this statement.
The hypotheses for this test are:
Ho: p = .5
Ha: p > .5
Ho: p = .5
Ha: p ? .5
Ho: p = .5
Ha: p < .5
The test statistic is: ________ (please round to two decimal places)
The p-value associated with this hypothesis test is: __________ (please round to four decimal places)
What is the conclusion of the hypothesis test?
a. Since p<? we fail to reject the null hypothesis
b. Since p<? we reject the null hypothesis and accept the alternative
c. Since p ? ? we accept the null hypothesis
d. Since p ? ? we do not have enough evidence to reject the null hypothesis
e. Since p ? ? we reject the null hypothesis and accept the alternative
Interpret the result of the test in the context of this study and article:
a. The data do not provide sufficient evidence to claim that only a minority of Americans who choose not to go to college do so because they cannot afford it
b. The data provide sufficient evidence to claim that only a minority of Americans who choose not to go to college do so because they cannot afford it
(b) Would you expect a confidence interval for the proportion of American adults who decide not to go to college because they cannot afford it to include 0.5?
a. yes
b. no
here as level of significance is not given we consider it as 0.05
Ho: p = .5
Ha: p < .5
The test statistic is: =-0.73
The p-value associated with this hypothesis test is: 0.2327
since p value is greater than alpha we do not have enough evidence to reject the null hypothesis
a. The data do not provide sufficient evidence to claim that only a minority of Americans who choose not to go to college do so because they cannot afford it
b)
a. yes
Among a simple random sample of 331 American adults who do not have a four-year college...
6.16 Is college worth it? Part I: Among a simple random sample of 331 American adults who do not have a four-year college degree and are not currently enrolled in school, 48% said they decided not to go to college because they could not afford school. (a) A newspaper article states that only a minority of the Americans who decide not to go to college do so because they cannot afford it and uses the point estimate from this survey...
(1 point) Is college worth it? Part I Among a simple random sample of 331 American adults who do not have a four-year college degree and are not currently enrolled in school, 48% said they decided not to go to college because they could not afford school. A newspaper article states that only a minority of the Americans who decide not to go to college do so because they cannot afford it and uses the point estimate from this survey...
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Among a simple random sample of 326 American adults who do not have a four-year college degree and are not currently enrolled in school, 48% said they decided not to go to college because they could not afford school. Suppose an earlier hypothesis test determined that the data do not provide strong evidence that less than half of American adults who decide not to go to college make this decision because they cannot afford college. (a) Calculate a 90% confidence...
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(3 points) Is college worth it? Among a simple random sample of 304 American adults who do not have a four-year college degree and are not currently enrolled in school, 137 said they decided not to go to college because they could not afford school. 1. Calculate a 90% confidence interval for the proportion of Americans who decide to not go to college because they cannot afford it, and interpret the interval in context. Round to 4 decimal places. (...
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It is believed that nearsightedness affects about 8% of all children. In a random sample of 194 children, 21 are nearsighted. (a) Construct hypotheses appropriate for the following question: do these data provide evidence that the 8% value is inaccurate? ОНо: р 3D.08 На: р 2 .08 Ho: p .08 На: р < .08 Ho: p .08 На: р > .08 (b) What proportion of children in this sample are nearsighted? (round to four decimal places) (c) Given that the...
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