Question

A survey of 436 workers showed that 192 of them said that it was seriously unethical to monitor employee e-mail. When 121 senior-level bosses were surveyed, 40 said that it was seriously unethical to monitor employee e-mail. Use a 0.05 significance level to test the claim that for those saying that monitoring e-mail is seriously unethical, the proportion of employee is greater than the proportion of bosses.

a) Write the claim and opposite in symbolic form.

b) Identify the Null and Alternate hypotheses in symbolic form

c) Identify the significance level.

d) find the test statistic and the p-value.

e) State the decision.

f) State the conclusion.

Answer #1

C) A random survey of 436 workers showed that 192 of them said
that it is unethical to monitor employee email. When 121
senior-level bosses are surveyed, 40 say that it is unethical to
monitor employee email. Use a 0.05 confidence level to test that
claim that the proportion of workers is higher than the proportion
of senior-level bosses who believe that it is unethical to monitor
employee email.25. Use this to construct a 90% C. I. Interpret your
results....

A survey of 500 workers showed that 330 of them said that it was
seriously unethical to monitor employee e-mail. Use a 5%
significance level to test the claim that the proportion of
employees who say that monitoring e-mail is seriously unethical is
different from 60%. What is the DECISION?
Select one:
a. fail to reject the claim that the proportion of employees who
say that monitoring e-mail is seriously unethical is equal to
60%
b. reject the claim that...

In a study of 1228 randomly selected medical malpractice
lawsuits, it was found that 70% of them were dropped or dismissed.
Use a 0.01 significance level to test the claim that more than 50%
of medical malpractice lawsuits are dropped or dismissed.
a) Write the claim and opposite in symbolic form.
b) Identify the Null and Alternate hypotheses in symbolic
form
c) Identify the significance level.
d) find the test statistic and the p-value.
e) State the decision.
f) State...

In a random sample of 360 women, 65% favored stricter gun
control laws. In a random sample of 220 men, 60% favored stricter
gun control laws. Test the claim that the proportion of women
favoring stricter gun control laws is higher than the proportion of
men favoring stricter gun control.
a) Write the claim and its opposite in symbolic form using the
proper notation.
b) Identify the Null and the Alternative hypotheses using
symbolic form.
c) Identify the significance level....

In a study of hypertension, it was found that 26% of the 150
selected men 20 years and older suffer from hypertension (high
blood pressure) and 31.5% of the 150 selected women are
hypertensive. Test the claim that the percentage of men with
hypertension is lower than the percentage of women with
hypertension.
a) Write the claim and opposite in symbolic form.
b) Identify the Null and Alternate hypotheses in symbolic
form
c) Identify the significance level.
d) find the...

Smartphone Users. A Ring Central survey of 380
smartphone users showed that 152 of them said that theirsmartphone
is the only thing they could not live without. Use a 0.01
significance level to test the claim thatfewer than half of
smartphone users identify the smartphone as the only thing they
could not live without

In a survey of 155 senior executives, 45.8% said that the most
common job interview mistake is to have little or no knowledge of
the company. Use a 0.01
significance level to test the claim that in the population of
all senior executives, 45% say that the most common job interview
mistake is to have little or no knowledge of the company. Identify
the null hypothesis, alternative hypothesis, test statistic,
P-value, conclusion about the null hypothesis, and final
conclusion that...

In clinical tests of the drug Lipitor, 800 patients were treated
with 10 mg doses of Lipitor, and 16 of those patients experienced
flu symptoms (based on data from Parke-Davis). Use a 0.01
significance level to test the claim that the proportion of treated
patients who experienced flu symptoms is greater than 0.019 (0.019
is the rate of flu symptoms for patients not given the
treatments).
a) State the claim in words.
b) State the null and alternative hypothesis in...

A poll surveyed 341 video gamers, and 109 of them said that they
prefer playing games on a console, rather than a computer or
hand-held device. An executive at a game console manufacturing
company claims that the proportion of gamers who prefer consoles
differs from 30%. Does the poll provide convincing evidence that
the claim is true? Use the α=0.10 level of significance and the
P-value method with the TI-84 Plus calculator
a. state null and alternative hypothesis. what tail...

Game consoles: A poll surveyed
341
video gamers, and
72
of them said that they prefer playing games on a console, rather
than a computer or hand-held device. An executive at a game console
manufacturing company claims that the proportion of gamers who
prefer consoles differs from
26%
. Does the poll provide convincing evidence that the claim is
true? Use the
=α0.05
level of significance and the
P
-value method with the TI-84 Plus calculator.
Part 1 of 4...

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