Question
A survey showed that among 785 randomly selected subjects who completed four years of college, 144...
A survey showed that among 785 randomly selected subjects who completed four years of college, 144 of them are smokers. Use a 0.01 significance level to test the claim that the rate of smoking among those with four years of college is less than the 27% rate for the general population.
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
one sample showed that among 780 randomly selected students who completed four years of college 20%...
one sample showed that among 780 randomly selected students who
completed four years of college 20% smoke. Use a=0.02 significance
level to test the claim that the rate of smoking among those four
years of college is less than 27% rate for the general
population
A recent survey of 200 randomly selected households showed that 8 had a single male as...
A recent survey of 200 randomly selected households showed that
8 had a single male as the head of household. Forty years ago, a
survey of 200 randomly selected households showed that 6 had a
single male as the head of household. Use a 0.05 significance level
to test the claim that the proportion has changed. Find the
P-value.
In a survey of randomly selected subjects, the mean age of 40 respondents is 36.4 years,...
In a survey of randomly selected subjects, the mean age of 40
respondents is 36.4 years, and the sample standard deviation of all
ages is known to be 10.1 years. Construct a 95% confidence interval
estimate of the mean age of the population from which the sample
was selected.
In a study of cell phone use an internet survey was randomly emailed to 5000 subjects....
In a study of cell phone use an internet survey was randomly
emailed to 5000 subjects. From the surveys emailed out, 717 were
returned. Use a 0.01 significance level to test the claim that the
return rate is less than
15%.0__________________________________________AHH
Determine the Test Criteria: z =
____________________________
Calculate out the Test Statistic: z =
__________________________
Decision: ______________________________________________
In a survey, 500 men and 500 women were randomly selected. Among the men, 52 had...
In a survey, 500 men and 500 women were randomly selected. Among
the men, 52 had been ticketed for speeding within the last year,
whereas 27 of the women had been ticketed for speeding during the
same period (based on data from R. H. Bruskin Associates).
(a) At the 0.01 significance level, test the claim that women
have lower rate of speeding tickets.
Original claim is made by the Answer hypothesis.
Original claim is: pwomen - pmenAnswer
0.
Test statistic:...
Among drivers who have had a car crash in the last year, 250 were randomly selected...
Among drivers who have had a car crash in the last year, 250
were randomly selected and categorized by age, with the results
listed in the table below.
Age
Under 25
25-44
45-64
Over 64
Drivers
97
62
38
53
If all ages have the same crash rate, we would expect (because
of the age distribution of licensed drivers) the given categories
to have 16%, 44%, 27%, 13% of the subjects, respectively. At the
0.025 significance level, test the claim...
1) A sample of cereal boxes is randomly selected and the sugar contents (grams of sugar...
1) A sample of cereal boxes is randomly selected and the sugar
contents (grams of sugar per gram of cereal) are recorded. Those
amounts are summarized with these statistics: n = 16, ?̅ = 0.295g,
s = 0.168g. Use a 0.05 significance level to test the claim that
the mean of all cereals is less than 0.3g.
Section 7-6 Problem
Testing a Claim about a Standard Deviation
a ) Use a 0.05 significance level to test the claim that heights...
Among 2200 randomly selected adult male passengers 1884 wear seat belts. Among 2280 randomly selected adult...
Among 2200 randomly selected adult male passengers 1884 wear
seat belts. Among 2280 randomly selected adult female passengers
1999 wear seat belts. Use a 0.05 significance level to test the
claim that the rate of male passengers who wear seat belts is lower
than the rate of female passengers who wear seat belts.
H0: p1____p2 For Q35 (circle one: equal to, less than, greater
than, not equal to)
H1: p1____ p2 For Q36 (circle one: equal to, less than, greater...
In order to investigate the difference between mean job tenure in years among workers who have...
In order to investigate the difference between mean job tenure
in years among workers who have a college
degree and
those who do not, random samples of each type of worker were
taken. A random sample of 16
workers
with a college degree had a mean of 5.7 years with a standard
deviation of 1.3. A random sample
of 21
workers without a college degree had a mean of 5.0 years with a
standard deviation of 1.5. Use an
significance
level to test...
A survey of 1,570 randomly selected adults showed that 541 of them have heard of a...
A survey of 1,570 randomly selected adults showed that 541 of
them have heard of a new electronic reader. The accompanying
technology display results from a test of the claim that 34% of
adults have heard of the new electronic reader. Use the normal
distribution as an approximation to the binomial distribution, and
assume a 0.01 significance level to complete parts (a) through
(e).
a. Is the test two-tailed, left-tailed, or right-tailed?
Right tailed test
Left-tailed test
Two-tailed test
b....
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 22 minutes ago
asked 25 minutes ago
asked 26 minutes ago
asked 34 minutes ago
asked 42 minutes ago
asked 46 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago