Question

A certain drug is used to treat asthma. In a clinical trial of the drug, 20 of 262 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 12% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below.

A. Is the test two-tailed, left-tailed, or right-tailed?

B. What is the test statistic?

Z=[ ] (Round to TWO decimal places as needed)

C. What is the P-value?

P-value= [ ] (Round to FOUR decimal places as needed)

D. What is the null hypotheses, and what do you conclude about it?

Decide weather to reject the null hypothesis.

E. What is the final conclusion?

Answer #1

A certain drug is used
to treat asthma. In a clinical trial of the drug, 20 of 262
treated subjects experienced headaches (based on data from the
manufacturer). The accompanying calculator display shows results
from a test of the claim that less than 12% of treated subjects
experienced headaches. Use the normal distribution as an
approximation to the binomial distribution and assume a 0.05
significance level to complete parts (a) through (e) below.
A. Is the test
two-tailed, left-tailed, or...

A certain drug is used
to treat asthma. In a clinical trial of the drug, 25 of 289
treated subjects experienced headaches (based on data from the
manufacturer). The accompanying calculator display shows results
from a test of the claim that less than 18% of treated subjects
experienced headaches. Use the normal distribution as an
approximation to the binomial distribution and assume a 0.01
significance level to complete parts (a) through (e) below.
A. Is the test
two-tailed, left-tailed, or...

A certain drug is used to treat asthma. In a clinical trial of
the drug, 17 of 298 treated subjects experienced headaches (based
on data from the manufacturer). The accompanying calculator
display shows results from a test of the claim that less than 88%
of treated subjects experienced headaches. Use the normal
distribution as an approximation to the binomial distribution and
assume a 0.05 significance level to complete.
What is the test statistics?
z=_ (round to two decimal places as...

A certain drug is used to treat asthma. In a clinical trial of
the drug, 20 of 265 treated subjects experienced headaches (based
on data from the manufacturer). The accompanying calculator display
shows results from a test of the claim that less than 9 % of
treated subjects experienced headaches. Use the normal distribution
as an approximate to the binomial distribution and assume a 0.05
significance level to complete parts (a) through (e) below.
a. Is the test two-tailed, left-tailed...

A certain drug is used to treat asthma. In a clinical trial of
the drug,
24
of
260
treated subjects experienced headaches (based on data from
themanufacturer). The accompanying calculator display shows
results from a test of the claim that less than
11%
of treated subjects experienced headaches. Use the normal
distribution as an approximation to the binomial distribution and
assume a
0.01
significance level to complete parts (a) through (e) below.
1-PropZTest
prop <0.11
z=-0.911758481
p=0.1809479355
ModifyingAbove p=0.0923076923
n=260...

A certain drug is used to treat asthma. In a clinical trial of
the drug, 17 of 271 treated subjects experienced headaches (based
on data from the manufacturer). The accompanying calculator
display shows results from a test of the claim that less than 10%
of treated subjects experienced headaches. Use the normal
distribution as an approximation to the binomial distribution and
assume a 0.01significance level to complete parts (a) through (e)
below. (1-PropZTest prop<0.1, z=-2.045104355, p=0.0204222855,
p^=0.0627306273, n=271) a. Is the...

A certain drug is used to treat asthma. In a clinical trial of
the drug, 26 of 285 treated subjects experienced headaches (based
on data from the manufacturer). The accompanying calculator
display shows results from a test of the claim that less than 11%
of treated subjects experienced headaches. Use the normal
distribution as an approximation to the binomial distribution and
assume a 0.01 significance level to complete parts (a) through
(e) below.
A. Is the test two-tailed, left-tailed, or...

In a clinical trial of a certain drug, 14 subjects experience
headaches among the 221 subjects treated with the drug. Construct a
99% (Wald) confidence interval estimate for the proportion of
treated subjects who experience headaches, completing parts (a)
through (d) below.
a. Find the best point estimate of the population proportion.
0.063 (Type an integer or a decimal rounded to
three decimal places as needed.)
b. Identify the value of the margin of error E. nothing (Type
an integer...

In a clinical trial of a certain drug, 28 subjects experience
headaches among the 234 subjects treated with the drug. Construct a
99% (Wald) confidence interval estimate for the proportion of
treated subjects who experience headaches, completing parts (a)
through (d) below.
a. Find the best point estimate of the population
proportion.
__ (Type an integer or a decimal rounded to three decimal
places as needed.)
b. Identify the value of the margin of error E.
__ (Type an integer...

Use R-studio to answer:
The drug Clarinex is used to treat allergic symptoms. In a clinical trial of this drug, 2.1% of the 1,655 treated subjects experienced fatigue. Of the 1,652 subjects who received placebos, 1.2% experienced fatigue (according to data from the Schering Corporation). Use a significance level of 0.05 to test the claim that the incidence of fatigue is higher among individuals who used Clarinex. Should fatigue concern those taking Clarinex?

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