Question
In: Statistics and Probability
A researcher fails to find a significant difference in mean blood pressure in 36 matched pairs....
A researcher fails to find a significant difference in mean blood pressure in 36 matched pairs. The test was carried out with a power of 85%. Assuming that this study was well designed and carried out properly, do you believe that there really is no significant difference in blood pressure? Explain your answer.
I just really need this question explained to me in words I can understand. I have zero statistics background. Thanks
Solutions
orchestra answered 1 year agoRelated Solutions
A researcher fails to find a significant difference in mean blood pressure in 36 matched pairs....
A researcher fails to find a significant difference in mean
blood pressure in 36 matched pairs. The test was carried out with a
power of 85%. Assuming that this study was well designed and
carried out properly, do you believe that there really is no
significant difference in blood pressure? Explain your answer.
A researcher fails to find a significant difference in mean blood pressure in 36 matched pairs....
A researcher fails to find a significant difference in mean
blood pressure in 36 matched pairs. The test was carried out with a
power of 85%. Assuming that this study was well designed
and carried out properly, do you believe that there really is no
significant difference in blood pressure? Explain your
answer.
A researcher fails to find a significant difference in mean blood pressure in 36 matched pairs....
A researcher fails to find a significant difference in mean
blood pressure in 36 matched pairs. The test was carried out with a
power of 85%. Assuming that this study was well designed
and carried out properly, do you believe that there really is no
significant difference in blood pressure? Explain your
answer.
Use the Wilcoxon matched-pairs signed rank test to determine whether there is a significant difference between...
Use the Wilcoxon matched-pairs signed rank test to determine
whether there is a significant difference between the related
populations represented by the data below. Assume a 5% level of
significance and (differences = before - after).
Before After
5.6 6.4
1.3 1.5
4.7 4.6
3.8 4.3
2.4 2.1
5.5 6.0
5.1 5.2
4.6 4.5
3.7 4.5
What is the value of T-?
What is the value of T+?
What is the test statistic, T?
Using the table of Critical Values, what is the critical value for
this study?
A researcher wants to determine if there is a significant difference in the mean cost of...
A researcher wants to determine if there is a significant
difference in the mean cost of a meal in the world's most expensive
restaurants. A survey of 100 people in the most expensive
restaurant in the world in Tokyo, Japan produced an average cost
per person of $277 and a standard deviation of $35. A survey of 100
people in the second most expensive restaurant located in Toronto,
Canada produced an average cost per person of $213 with a standard...
difference between a repeated measures design and a matched pairs design?
difference between a repeated measures design and a matched
pairs design?
What is the difference between a Matched Pairs hypothesis test and the Goodness of Fit hypothesis...
What is the difference between a Matched Pairs hypothesis test
and the Goodness of Fit hypothesis test. How do we know when to use
the correct test?
Explain the difference between a matched pairs experimental design and a randomized ex- perimental design. How...
Explain the difference between a matched pairs experimental
design and a randomized ex- perimental design. How does this
difference affect the statistical tests that we perform on the data
gathered?
A medical researcher is investigating the effect of drinking coffee on systolic blood pressure. The researcher...
A medical researcher is investigating the effect of drinking
coffee on systolic blood pressure. The researcher assumes the
average systolic blood pressure is 120 mmHg. For a random sample of
200 patients, the researcher takes two measurements of systolic
blood pressure. The first systolic blood pressure measurement is
taken during a week when the patients drink no coffee, and the
second systolic blood pressure measurement is taken during a week
when the patients drink at least two cups of coffee....
For a random sample of 36 data pairs, the sample mean of the differences was 0.8....
For a random sample of 36 data pairs, the sample mean of the
differences was 0.8. The sample standard deviation of the
differences was 2. Test the claim that the population mean of the
differences is different than 0 using alpha at .05.
State the null and alternative hypotheses (.5 points)
What is the formula you will use? (.5 points)
Identify all variables and corresponding values from the
formula. Calculate the test statistic. (2 points)
Sketch the distribution, label the...
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