Question
In: Statistics and Probability
In a random sample of 65 teenage males, 42 were found to be overweight. a) Construct...
In a random sample of 65 teenage males, 42 were found to be
overweight.
a) Construct then state a 90% confidence interval from this sample
result for the true proportion of teenage males that are
overweight.
b) Interpret your interval in this context.
c) From your interval, are significantly less than 80% of teenage
males? Explain briefly.
Solutions
orchestra answered 1 year agoRelated Solutions
In a random sample of 43 teenage males it was found that the amount of soda...
In a random sample of 43 teenage males it was found that the
amount of soda they consumed daily had a mean of 33.42 ounces with
a standard deviation of 9.98 ounces. At the 1% level of
significance can it be shown that teenage males consume a mean of
less than 36 ounces of soda per day?
(a) State and test appropriate hypotheses. State
conclusions.
(b) Find the p-value of the test in (a).
4. Nationally, the unemployment rate for teenage males is 18%. A random sample of 323 teenage...
4. Nationally, the unemployment rate
for teenage males is 18%. A random sample of 323 teenage males in
your area reveals an unemployment rate of 21.7%. Are our local
teens more likely to be unemployed? (20%) This question
is an example of statistical research using hypothesis
testing. You will need to use the 5 step model of
hypothesis testing to test for significance at a=.01.
State assumptions
State the null hypothesis and the alternative
hypothesis
State the appropriate hypothesis test...
In a random sample of 65 professional actors, it was found that 43 were extroverts. (a)...
In a random sample of 65 professional actors, it was found that
43 were extroverts.
(a) Let p represent the proportion of all actors who
are extroverts. Find a point estimate for p. (Round your
answer to four decimal places.)
(b) Find a 95% confidence interval for p. (Round your
answers to two decimal places.)
lower limit
upper limit
9. In a random sample of males, it was found that 25 write with their left...
9. In a random sample of males, it was found that 25 write with
their left hands and 223 do not. In a random sample of females, it
was found that 74 write with their left hands and 436 do not. Use a
0.01 significance level to test the claim that the rate of
left-handedness among males is less than that among females.
Complete parts (a) through (c) below.
a. Test the claim using a hypothesis test.
Consider the first...
In a random sample of males, it was found that 25 write with their left hands...
In a random sample of males, it was found that 25 write with
their left hands and 223 do not. In a random sample of females, it
was found that 68 write with their left hands and 442 do not. Use a
0.01 significance level to test the claim that the rate of
left-handedness among males is less than that among females.
Complete parts (a) through (c) below.
(a.) Test the claim using a hypothesis test.
Consider the first sample...
In a random sample of males, it was found that 26 write with their left hands...
In a random sample of males, it was found that 26 write with
their left hands and 213 do not. In a random sample of females, it
was found that 64 write with their left hands and 464 do not. Use a
0.01 significance level to test the claim that the rate of
left-handedness among males is less than that among females.
Complete parts (a) through (c) below.
a. Test the claim using a hypothesis test.
Consider the first sample...
In a random sample of males, it was found that 26 write with their left hands...
In a random sample of males, it was found that 26 write with
their left hands and 216 do not. In a random sample of females, it
was found that 64 write with their left hands and 455 do not. Use a
0.01 significance level to test the claim that the rate of
left-handedness among males is less than that among females.
Complete parts (a) through (c) below.
a. Test the claim using a hypothesis test.
b. Identify the test...
In a random sample of males, it was found that 27 write with their left hands...
In a random sample of males, it was found that 27 write with
their left hands and 223 do not. In a random sample of females, it
was found that 72 write with their left hands and 464 do not. Use a
0.01 significance level to test the claim that the rate of
left-handedness among males is less than that among females.
Complete parts (a) through (b) below.
a) Identify the test statistic. Z= ___
b) Identify the P-value =...
In a random sample of males, it was found that 26 write with their left hands...
In a random sample of males, it was found that 26 write with
their left hands and 217 do not. In a random sample of females, it
was found that 61 write with their left hands and 438 do not. Use a
0.01 significance level to test the claim that the rate of
left-handedness among males is less than that among females. Find
the test statistic Z to two or more decimals and the P-value to
three or more.
In a random sample of males, it was found that 23 write with their left hands...
In a random sample of males, it was found that 23 write with
their left hands and 217 do not. In a random sample of females, it
was found that 65 write with their left hands and 455 do not. We
want to use a 0.01 significance level to test the claim that the
rate of left-handedness among males is less than that among
females. Test the claim using a hypothesis test.
Group of answer choices
A.P value=0.0926; fail to...
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