Question

**Large Sample Proportion
Problem. **Surveys were conducted in multiple
countries and respondents were asked if they felt political news
was reported fairly. The data for the United States is that out of
1,000 sampled, 470 indicated yes, they felt political news was
reported fairly. Suppose we construct a 99% confidence interval and
the upper and lower bounds are .4293 to .5107.

What can I conclude about a two-tailed hypothesis test where Ho: P=.5 and alpha is .01?

Group of answer choices

I don’t have enough information to make a conclusion.

I would be able to reject the Null Hypothesis that P=.5, but only for a one-tailed test.

I would be able to reject the Null Hypothesis that P = .5

I would fail to reject the Null Hypothesis that P = .5

Answer #1

Since , the 99% confidence interval estimate for the population proportion is ( 0.4293 , 0.5107 )

Here , The hypothesis is given by ,

Hypothesis : VS

Rejection rule : If the value does not lies in the given confidence interval , then reject Ho ,accept otherwise.

Decision : Here , the value lies in the given 99% confidence interval

**Therefore , fail to reject the Null hypothesis that
**

20. Large Sample Proportion Problem. Surveys
were conducted in multiple countries and respondents were asked if
they felt political news was reported fairly. The data for the
United States is that out of 1,000 sampled, 470 indicated yes, they
felt political news was reported fairly. Suppose we want to
determine if the proportion for the U.S. is below .50 for
an alpha level of .05.
What is the conclusion of my test?
A. I would reject Ho: P=.5 because the...

1. Large Sample Proportion Problem. A survey
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alpha = .01.
What is the conclusion for this test?
A)Based...

Large Sample Proportion Problem. A survey was
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students surveyed, 970 admitted to smoking marijuana at least
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What is the conclusion for this test?
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Multiple Choice Questions
Q1. In a hypothesis test, Beta is best described
by
P (Type I error)
P (Test Stat>|Observed Stat|)
Power
P (Type II error)
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to double the p-value in a test for the mean?
No feasible answer
Lower tailed alternative
Two sided alternative
Upper tailed alternative
Suppose our p-value is .184. What will our conclusion be
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Both before and after a recent earthquake, surveys were
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Perez
Chung
Stevens
Before
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Both before and after a recent earthquake, surveys were
conducted asking voters which of the three candidates they planned
on voting for in the upcoming city council election. Has here been
a change since the earthquake? You are conducting a Test of
Independence for the claim that there is an association
between the earthquake and the voter support at α=0.05α=0.05. The
following table summarize the result of the survey.
Perez
Chung
Stevens
Before
27
40
21
After
19
38
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You have graduated an joined a small consulting firm which
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My question is on a practice textbook problem - and generally
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Why is this compared to the –ve critical value.
For example in the scenario below. The textbook answer says
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Using R, the p-value is less than 0.05 so I would reject
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