Question

Assume that a simple random sample has been selected from a normally distributed population and test the given claim.

Use either the traditional method or P –value method as indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) or P -value, and state the final conclusion that addresses the original claim. A researcher wants to test the claim that convicted burglars on average of 18.7 months in jail. She takes a random sample of 11 such casas from court files and find that ?̅ = 21.2 months and s = 7.4 months. Test the claim that µ = 18.7 months at the 0.05 significance level. Hint: identify the null and alternative hypotheses, test statistic, critical value(s) or P-values, and state the final conclusion that addresses the original claim.

Answer #1

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Use
either the traditional method or P-value method as indicated.
Identify the null and alternative hypotheses, test statistic,
critical value(s) or P-value (or range of P-values) as appropriate,
and state the final conclusion that addresses the original claim. A
test of sobriety involves measuring the subject's motor skills.
Twenty randomly selected sober subjects take the test and produce a
mean score...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Use
either the traditional method or P-value method as indicated.
Identify the null and alternative hypotheses, test statistic,
critical value(s) or P-value (or range of P-values) as appropriate,
and state the final conclusion that addresses the original claim. A
public bus company official claims that the mean waiting time for
bus number 14 during peak hours is less than 10 minutes....

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Use
either the traditional method or P-value method as indicated.
Identify the null and alternative hypotheses, test statistic,
critical value(s) or P-value (or range of P-values) as appropriate,
and state the final conclusion that addresses the original claim.
36) In tests of a computer component, it is found that the mean
time between failures is 520 hours. A modification is made...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Use
either the traditional method or P-value method as indicated.
Identify the null and alternative hypotheses, test statistic,
critical value(s) or P-value (or range of P-values) as appropriate
and state the conclusion that addresses the original claim.
2) A light-bulb manufacturer advertises that the average life
for its light bulbs is 900 hours. A random sample of 15 of its
light...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative hypotheses, test statistic, critical
value(s), and state the final conclusion that addresses the
original claim. A simple random sample of pages from a dictionary
is obtained. Listed below are the numbers of words defined on those
pages. Given that this dictionary has 1459 pages with defined
words, the claim that there are more than 70,000 defined...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative? hypotheses, test? statistic, critical?
value(s), and state the final conclusion that addresses the
original claim. A simple random sample of pages from a dictionary
is obtained. Listed below are the numbers of words defined on those
pages. Given that this dictionary has 1459 pages with defined?
words, the claim that there are more than? 70,000 defined...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim.
Test
the given claim. Identify the null hypotheses, alternative
hypothesis, test statistic, P-value,
critical value(s), conclusion about the null hypothesis, and final
conclusion for the
original claim. Try both ways the P-valued method and traditional
method.
Data Set 14 in Appendix B lists measured reading levels for 12
pages randomly
selected from J. K. Rowling’s Harry Potter and the Sorcerer’s
Stone....

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative? hypotheses, test? statistic, critical?
value(s), and state the final conclusion that addresses the
original claim.
A simple random sample of pages from a dictionary is obtained.
Listed below are the numbers of words defined on those pages. Given
that this dictionary has 1459 pages with defined? words, the claim
that there are more than? 70,000 defined...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative hypotheses, test statistic, P-value, and
state the final conclusion that addresses the original claim. A
simple random sample of 25 filtered 100 mm cigarettes is obtained,
and the tar content of each cigarette is measured. The sample has a
mean of 19.0mg and a standard deviation of 3.45 mg. Use a 0.05
significance level to test...

Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Identify
the null and alternative hypotheses, test statistic, P-value, and
state the final conclusion that addresses the original claim. A
coin mint has a specification that a particular coin has a mean
weight of 2.5 g. A sample of 36 coins was collected. Those coins
have a mean weight of 2.49427 g and a standard deviation of 0.01141
g. Use a...

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