Question

H 0 : p = 0.52

H 1 : p < 0.52

Your sample consists of 147 subjects, with 69 successes. Calculate the test statistic, rounded to 2 decimal places

Answer #1

Population proportion value is =0.52

x=69

n=147

Estimate for sample proportion =0.4694

Z test statistic formula for proportion

1.
H 0 : p = 0.73
H 1 : p ≠ 0.73
Your sample consists of 83 subjects, with 59 successes.
Calculate the test statistic, rounded to 2 decimal places z
=_________________
2.
Testing:
H0:μ=27.5
H1:μ<27.5
Your sample consists of 22 subjects, with a mean of 26.1 and
standard deviation of 4.55.
Calculate the test statistic, rounded to 2 decimal places.
t=__________

Testing: H 0 : μ = 31.685 H 1 : μ ≠ 31.685 Your sample consists
of 46 subjects, with a mean of 32.2 and standard deviation of 2.03.
Calculate the test statistic, rounded to 2 decimal places. t
=______

Testing:
H0:p=0.5369H0
H1:p≠0.5369
Your sample consists of 93 subjects, with 49 successes. Calculate
the test statistic, rounded to 2 decimal places
z=

H0:p=0.69H0:p=0.69
H1:p<0.69H1:p<0.69
Your sample consists of 129 subjects, with 95 successes. Calculate
the test statistic, rounded to 2 decimal places
z=

Testing:
H0:p=0.81H0:p=0.81
H1:p≠0.81H1:p≠0.81
Your sample consists of 115 subjects, with 88 successes. Calculate
the test statistic, rounded to 2 decimal places
z=____

T-Distribution Hypothesis Test Testing: H 0 : μ = 6.76 H 1 : μ
> 6.76 Your sample consists of 40 subjects, with a mean of 7.2
and standard deviation of 2.48. Calculate the test statistic,
rounded to 2 decimal places. t =

1)
H0:p=0.54H0:p=0.54
H1:p<0.54H1:p<0.54
Your sample consists of 88 subjects, with 47 successes. Calculate
the test statistic, rounded to 2 decimal places
z=
2) A well-known brokerage firm executive claimed that
at least 43 % of investors are currently confident of meeting their
investment goals. An XYZ Investor Optimism Survey, conducted over a
two week period, found that out of 106 randomly selected people, 41
of them said they are confident of meeting their goals.
Suppose you are have the following null...

Testing: H0:μ= 38.375 H1: μ> 38.375 Your sample consists of
40 subjects, with a mean of 39.9 and a sample standard deviation
(s) of 4.65. Calculate the test statistic, rounded to 2 decimal
places. t=?

In a hypothesis test with hypotheses H 0 : μ ≤ 45 and H 1 : μ
> 45 , a random sample of 69 elements selected from the
population produced a mean of 47.3. Assume that σ = 7.3, and that
the test is to be made at the 2.5% significance level. What is the
critical value of z? -1.96 1.96 -1.65 1.65 What is the value of the
test statistic, z, rounded to three decimal places? What is...

Testing:
H0:μ=6.915
H1:μ≠6.915
Your sample consists of 101 subjects, with a mean of 6.6 and
standard deviation of 3.77.
Calculate the test statistic, rounded to 2 decimal places.
t=_______________

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