Question

A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is less than 0.5. Assume that sample data consists of 66 girls in144

births, so the sample statistic of 11 Over 24 results in a z score that is 1 standard deviation

below 0.

E. What is the value of the test statistic?

The test statistic is [ ] (type an integer or a decimal)

F. What is the P-Value? [ ] (Round to FOUR decimal places as needed)

G. What are the critical value(s)? [ ] (Round to TWO decimal places as needed. Use a comma to separate answers as needed.)

H. What is the area of the critical religion?

The area is [ ] (Round to TWO decimal places as needed)

Answer #1

Let p denotes the true proportion of baby girls.

To test against

Here

sample proportion

and sample size

The test statistic can be written as

which under H_{0} follows a standard normal
distribution.

We reject H_{0} at 0.01 level of significance if P-value
< 0.01 or

The critical region is

Now

The value of the test statistic

P-value

The critical value is

The area of the critical region is

A 0.01 significance level is used for a hypothesis test of the
claim that when parents use a particular method of gender?
selection, the proportion of baby girls is greater than 0.5. Assume
that sample data consists of 55 girls in 100 ?births, so the sample
statistic of StartFraction 11 Over 20 EndFraction results in a z
score that is 1 standard deviation above 0. Complete parts? (a)
through? (h) below. Click here to view page 1 of the Normal...

13. A 0.01 significance level is used for a hypothesis test of
the claim that when parents use a particular method of
genderselection, the proportion of baby girls is greater than 0.5.
Assume that sample data consists of 55 girls in 100 births, so the
sample statistic of 11/20 results in a z score that is 1 standard
deviation above 0. Complete parts (a) through (h) below
A. Identify the null hypothesis and the alternative hypothesis.
Choose the correct answer...

A 0.01 significance level is used for a hypothesis test of the
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Assume that sample data consists of 45 girls in 81 births, so the
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b. What is the...

A 0.05 significance level is used for a hypothesis test of the
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Assume that sample data consists of 78 girls in 169 births, so the
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Used For A Hypothesis Test Of The Claim That When Parents Use A
...
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Question: A 0.1 significance level is used for a
hypothesis test of the claim that when parents use a parti...
A 0.1 significance
level is used for...

A random sample of 831 births included 431 boys. Use a 0.01
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The test statistic for this hypothesis test is
(Round to two decimal places as needed.)
Identify the P-value for this hypothesis test.
The P-value for this hypothesis test is
(Round to three decimal places as needed.)

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a. Using a significance level of α = 0.01, find
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b. Should we reject Ho or should we fail to
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a. The critical value(s) is/are z =
(Round to two decimal places as needed. Use a comma to separate
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P-values= ___
(Round to four decimal places as needed.)
The critical value(s) is/are z=_____
(Round to two decimal places as needed. Use a comma to separate
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