Question

A 0.05 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 different from 0.5.
Assume that sample data consists of 55 girls in 100 births, so the
sample statistic of 11/20 (Fraction)

results in a z score that is 1 standard deviation above 0. Complete
parts (a) through (h) below.

A. Identify the Null hypothesis and alternative

B. What is the value of alpha?

C. What is the sampling distribution?

Normal Distribution, Student (t) distribution, or x^2

D. Is the test two tailed, left tailed or right tailed?

E. What is the value of the test statistic?

F. What is the P-Value?

G. What are the critical values? (round to three decimal places)

H. What is the area of the critical region? Round to two decimal places

Answer #1

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 different from 0.5.
Assume that sample data consists of 45 girls in 81 births, so the
sample statistic of 5/9 results in a z score that is 1 standard
deviation below 0. Complete parts (a) through (h) below.
a. Identify the null hypothesis and the
alternative hypothesis.
b. What is the...

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...

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...

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 0.05 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 less than 0.5.
Assume that sample data consists of 78 girls in 169 births, so the
sample statistic of 6/13 results in a z score that is 1 standard
deviation below 0. Complete parts (a) through (h) below.

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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...

Conduct the following test at the ?=0.05 level of significance
by determining (a) the null and the alternative hypothesis, (b) the
test statistic, and (c) the critical value. Assuming that the
samples were obtained independently using simple random
sampling.
Test whether p1?p2. Sample data are x1=28?, n1=255?,
x2=36 and n2=302.
(a) Determine the null and alternative hypothesis. Choose the
correct answer below.
( ) Ho:p1=p2 versus H1:p1?p2
( ) Ho:p1=p2 versus H1:p1>p2
( ) Ho:p1=p2 versus H1:p1
(b)...

Conduct a test at the alphaαequals=0.05 level of significance by
determining (a) the null and alternative hypotheses, (b) the
test statistic, and (c) the P-value. Assume the samples were
obtained independently from a large population using simple random
sampling.
Test whether p1>p2. The sample data are x1=128, n1=246,
x2=134,n2=312.
(b) Determine the test statistic.
z0=
(Round to two decimal places as needed.)
(c) The P-value depends on the type of hypothesis test. The
hypothesis test H0: p1=p2 versus H1: p1>p2...

You wish to test the following claim ( H a ) at a significance
level of α = 0.05 . H o : p 1 = p 2 H a : p 1 ≠ p 2 You obtain
63.1% successes in a sample of size n 1 = 203 from the first
population. You obtain 80.9% successes in a sample of size n 2 =
230 from the second population. For this test, you should NOT use
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You wish to test the following claim ( H a ) at a significance
level of α = 0.002 . H o : p 1 = p 2 H a : p 1 < p 2 You obtain
83 successes in a sample of size n 1 = 611 from the first
population. You obtain 116 successes in a sample of size n 2 = 625
from the second population. Use the normal distribution as an
approximation for the binomial...

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