Question

see data set 7 in appendix B. use 0.05 significance level to test the claim that the mean of the differences is greater than 0 sec, so that more time is devoted to showing tobacco than alcohol. for animated children's movies, how much time should be spent showing the use of tobacco and alcohol? tobacco use(sec):176,51,0,299,74,2,23,205,6,155. alcohol use(sec):88,33,113,51,0,3,46,73,5,74

Answer #1

Difference data ( Tobacco - Alcohol ) :

88, 18, -113 , 248 , 74, -1, -23 , 132 , 1 , 81

Assume that you plan to use a significance level of ΅= 0.05 to
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of successes to find the z test statistic for the hypothesis
test.8)8)Information about movie ticket sales was printed in a
movie magazine. Out of fifty PG-ratedmovies, 41% had ticket sales
in excess of $3,000,000. Out of thirty-five R-rated movies,
17%grossed over $3,000,000.A)z =3.763B)z =2.352C)z =7.291D)z
=4.704
Assume that you plan to use a significance level...

A data set of samples is given below. Use a 0.05 significance
level to test the claim that the samples are from a population with
a mean that is less than 0.065.
1. Write Ho (null) and H1 (alternative) and indicate which is
being tested
2. Describe the statistical test chosen
Data Set
0.066
0.059
0.058
0.058
0.076
0.082
0.053
0.053
0.072
0.076
0.066
0.084
0.05
0.051
0.068
0.065
0.084
0.078
0.082
0.056
0.066
0.081
0.08
0.053
0.068
0.06
0.077...

Refer to the accompanying data set. Use a 0.05 significance
level to test the claim that the sample of home voltages and the
sample of generator voltages are from populations with the same
mean. If there is a statistically significant difference, does
that difference have practical significance?
Let μ1 be the population mean home voltage and let
μ2 be the population mean generator voltage. What are
the null and alternative hypotheses?
Calculate the test statistic.
t = ____ (Round to...

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selection, the proportion of baby girls is less less than 0.5.
Assume that sample data consists of 78 girls in 169 births, so the
sample statistic of 6/13 results in a z score that is 1 standard
deviation below 0. Complete parts (a) through (h) below.

Use a 0.05 significance level to test the claim that IQ scores
of people with low lead levels vary more than IQ scores of people
with high lead levels. Use the following statistics:
Low Lead Level: n=78, x=92.88462, s=15.34451
High Lead Level: n=21, x=86,90476, s=8.988352
a)Write down the claim
b) Write down the null hypothesis and the alternative
hypothesis. Indicate which one is the claim.
c) Draw the probability distribution curve. Write down the
testing statistic and the P-Value on...

Using a significance level of 0.05, test the claim that the
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You wish to test the following claim a significance level of α =
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n = 160 in which there are 26 successful observations. What is the
test statistic for this sample? test statistic = Round to 3 decimal
places. What is the p-value for this sample? P-value = Use
Technology Round to 4 decimal places. The p-value is... less than...

Assume that the significance level is alpha equals 0.05. Use the
given information to find the? P-value and the critical? value(s).
The test statistic of z = -1.07 is obtained when testing the claim
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You wish to test the following claim (Ha) at a significance
level of α-0.05. Ho: u = 65.4 Ha: u > 65.4 you believe the
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and a standard deviation of SD =7.2. what is the p-value for this
sample? the p-value is less than or greater than α? This p-value
leads to a decision to... reject the null accept...

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level of α=0.05α=0.05. For the context of this problem,
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represents a pre-test and the second data set represents a
post-test. (Each row represents the pre and post test scores for an
individual. Be careful when you enter your data and specify what
your μ1μ1 and μ2μ2 are so that the differences are computed
correctly.)
Ho:μd=0Ho:μd=0
Ha:μd≠0Ha:μd≠0
You believe the population of difference scores...

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