Question

According to a recent census, 17% of the people in the United States are of Hispanic origin. One county supervisor believes her county has a different proportion of Hispanic people than the nation as a whole. She looks at their most recent survey data, which was a random sample of 400 county residents, and found that 44 of those surveyed are of Hispanic origin. Complete parts (a) through (d) below What kind of test is this? Difference in differences test Two-proportion t test Proportional t test One-proportion z test Check the appropriate conditions for a hypothesis test. Select the correct choice below and fill in the answer boxes within your choice. (Round to one decimal place as needed) A. The 400 residents were a random sample from the county of interest. The standard deviation of p is less than 0.5. One expects $n_0 p_0$ = successes and $n_0 q_0$ = failures, which are both more than 20. B. The 400 residents were a random sample from the county of interest. 400 is likely less than 10% of the population of a county. One expects $n_0 p_0$ = successes and $n_0 q_0$ = failures, which are both more than 10. C. The 400 residents were a random sample from the county of interest. The sample size is more than 100. One expects $n_0 p_0$ = successes and $n_0 q_0$ = failures, which are both more than 10.

          According to a recent census, 17% of the people in the United States are of Hispanic origin. One county supervisor believes her county has a different proportion of Hispanic people than the
nation as a whole. She looks at their most recent survey data, which was a random sample of 400 county residents, and found that 44 of those surveyed are of Hispanic origin. Complete parts
(a) through (d) below
What kind of test is this?
Difference in differences test
Two-proportion t test
Proportional t test
One-proportion z test
Check the appropriate conditions for a hypothesis test.
Select the correct choice below and fill in the answer boxes within your choice.
(Round to one decimal place as needed)
A. The 400 residents were a random sample from the county of interest. The standard deviation of p is less than 0.5. One expects $n_0 p_0$ = successes and $n_0 q_0$ = failures, which are
both more than 20.
B. The 400 residents were a random sample from the county of interest. 400 is likely less than 10% of the population of a county. One expects $n_0 p_0$ = successes and $n_0 q_0$ =
failures, which are both more than 10.
C. The 400 residents were a random sample from the county of interest. The sample size is more than 100. One expects $n_0 p_0$ = successes and $n_0 q_0$ = failures, which are both
more than 10.

According to a recent census, 17% of the people in the United States are of Hispanic origin. One county supervisor believes her county has a different proportion of Hispanic people than the
nation as a whole. She looks at their most recent survey data, which was a random sample of 400 county residents, and found that 44 of those surveyed are of Hispanic origin. Complete parts
(a) through (d) below
What kind of test is this?
Difference in differences test
Two-proportion t test
Proportional t test
One-proportion z test
Check the appropriate conditions for a hypothesis test.
Select the correct choice below and fill in the answer boxes within your choice.
(Round to one decimal place as needed)
A. The 400 residents were a random sample from the county of interest. The standard deviation of p is less than 0.5. One expects n0 p0 = successes and n0 q0 = failures, which are
both more than 20.
B. The 400 residents were a random sample from the county of interest. 400 is likely less than 10% of the population of a county. One expects $n0 p0$ = successes and $n0 q0$ =
failures, which are both more than 10.
C. The 400 residents were a random sample from the county of interest. The sample size is more than 100. One expects n0 p0 = successes and n0 q0 = failures, which are both
more than 10.

Added by Ryan M.

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