Question

The drug Lipitor is meant to reduce total cholesterol. In
clinical trials, 111 out of 123 patients taking 10mg of Lipitor
daily complained of flu-like symptoms. A patient advocacy group
claims that the proportion of patients taking Lipitor who
experience flu-like symptoms is larger than 80%. Use a 0.005
significance level to test the claim.

Claim: Select an answer p = 0.8 u < 0.8 u ≤ 0.8 p > 0.8 u ≠
0.8 p < 0.8 p ≤ 0.8 u = 0.8 p ≥ 0.8 p ≠ 0.8 u ≥ 0.8 u >
0.8 which corresponds to Select an answer H0: p ≤ 0.8
H0: p = 0.8 H0: p ≠ 0.8 H1: p ≠ 0.8 H1: p > 0.8 H1: p < 0.8
H0: u ≥ 0.8

Opposite: Select an answer u = 0.8 p < 0.8 u ≤ 0.8 p ≥ 0.8 u
> 0.8 u ≥ 0.8 u < 0.8 p > 0.8 p ≠ 0.8 u ≠ 0.8 p ≤ 0.8 p =
0.8 which corresponds to Select an answer H0: p ≠ 0.8
H0: u ≥ 0.8 H0: p ≤ 0.8 H1: p > 0.8 H0: p = 0.8 H1: p < 0.8
H1: p ≠ 0.8

The test is: Select an answer two-tailed right-tailed
left-tailed

The test statistic is: Select an answer 2.84 3.02 2.62 3.31
3.15

The p-value is: Select an answer 0.0044 0.0013 0.0023 0.0008
0.0005

Based on this we: Select an answer Fail to reject the null
hypothesis Reject the null hypothesis

**Conclusion** There Select an answer does does
not appear to be enough evidence to support the claim
that the proportion of patients taking Lipitor who experience
flu-like symptoms is larger than 80%.

Answer #1

Lipitor is a drug used to control cholesterol. In clinical
trials of Lipitor, 420 subjects were treated with Lipitor and 740
subjects were given a placebo. Among those treated with Lipitor,
181 developed infections. Among those given a placebo, 274
developed infections. Test the claim that the rate of infection for
those treated with Lipitor was more than rate of infection for
those given a placebo. at the .05 significance level.
Claim: Select an answer u 1≠u 2 u 1...

In a clinical trial of Lipitor, a common drug used to lower
cholesterol, 863 patients were given a treatment of 10-mg
Atorvastatin tablets. Among them, 19 patients experienced flu
symptoms and 844 patients did not.
a) Estimate the probability that a patient taking the drug will
experience flu symptoms.
b) Is this unusual for a patient taking the drug to experience
flu symptoms? Explain.
c) If you know that the probability of flu symptoms for a person
not receiving any...

In a clinical trial, 26 out of 866 patients taking a
prescription drug daily complained of flulike symptoms. Suppose
that it is known that 2.7% of patients taking competing drugs
complain of flulike symptoms. Is there sufficient evidence to
conclude that more than 2.7% of this drug's users experience
flulike symptoms as a side effect at the alpha equals 0.1 level of
significance?
Because np0 (1 – p0) = ____ ____ 10, the sample size is ________
5% of the...

NBC claims that viewers spend a daily average of 98.8 minutes
watching their content. An advertiser wants to verify this and
conducts a poll of 33 random viewers who claim to watch NBC. The
poll showed that this group spends a daily average of 88.9 minutes
watching NBC with a standard deviation of 20.7 minutes. Use a 0.005
significance level to test the claim that the daily average amount
of time NBC viewers watch NBC is less than 98.8 minutes,...

According to a survey conducted by the Association for Dressings
and Sauces, 70% of American adults eat salad once a week. A
nutritionist suspects that this percentage is not accurate. She
conducts a survey of 234 American adults and finds that 150 of them
eat salad once a week. Use a 0.1 significance level to test the
claim that the proportion of American adults who eat salad once a
week is different from 70%.
Hint: When you calculate ˆpp^, round...

In a clinical trial, 25 out of 881 patients taking a
prescription drug complained of flulike symptoms. Suppose that it
is know that 2.6% of patients taking competing drugs complain of
flulike symptoms. Is there sufficient evidence to conclude that
more than 2.6% of this drug's users experience flulike symptoms as
a side effect at the (alpha) a=0.1 level of significance?
1) What are the null and alternative hypotheses?
2) What is the test statistic?
3) What is the P-value?...

The below data shows the amount of time (in seconds) that
animated Disney movies showed the use of tobacco and alcohol. Test
the claim that the mean difference in time of tobacco use vs.
alcohol use is equal to zero at the 0.05 significance level.
You may want to use a spreadsheet to help you solve this
problem
Tobacco
Alcohol
64.1
66.9
35.6
47.4
29.3
48.4
46.5
47.2
65.7
92.9
62.7
90.1
63.4
84
48.9
51.7
43.7
66.7
49.5
55.2...

In a clinical trial, 18 out of 868 patients taking a
prescription drug daily complained of flulike symptoms. Suppose
that it is known that 1.7% of patients taking competing drugs
complain of flulike symptoms. Is there sufficient evidence to
conclude that more than 1.7% of this drug's users experience
flulike symptoms as a side effect at the α=0.01 level of
significance?
Because np 0 (1 minus p 0) = ▼ < ≠ > = 10, the sample size
is ▼...

The numbers of online applications from simple random samples of
college applications for 2004 and for the 2009 were taken. In 2004,
out of 336 applications, 131 of them were completed online. In
2009, out of 379 applications, 125 of them were completed online.
Test the claim that the proportion of online applications in 2009
was equal to than the proportion of online applications in 2004 at
the .10 significance level.
Claim: Select an answer p 1 ≤ p 2...

In a clinical trial, 28 out of 878 patients taking a
prescription drug daily complained of flulike symptoms. Suppose
that it is known that 2.7% of patients taking competing drugs
complain of flulike symptoms. Is there sufficient evidence to
conclude that more than 2.7% of this drug's users experience
flulike symptoms as a side effect at the alpha equals 0.1 level of
significance? Because np 0 left parenthesis 1 minus p 0 right
parenthesisequals nothing ▼ 10, the sample size...

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