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Sleep deprivation and reaction times. Sleep deprivation experienced by physicians during residency training and the possible negative consequences are of concern to many in the health care community. One study of 33 resident anesthesiologists compared their changes from baseline in reaction times on four tasks.5 Under baseline conditions, the physicians reported getting an average of 7.04 hours of sleep. While on duty, however, the average was 1.66 hours. For each of the tasks the researchers reported a statistically signi?cant increase in the reaction time when the residents were working in a state of sleep deprivation.
(a) If each task is analyzed separately as the researchers did in their report, what is the appropriate statistical method to use? Explain your answer.
(b) Is it appropriate to use a one-way ANOVA with I = 4 to analyze these data? Explain why or why not. a 10-point scale with 1 indicating total lack of importance and 10 indicating very high importance. The following table summarizes these results:
Class
Freshman
n
724
Mean score
7.6
Sophomore
536
Junior
593
7.5
Senior
437
7.3
(a) To compare the mean scores across classes, what are the degrees of freedom for the ANOVA F statistic?
(b) The MSG = 11.806. If sp = 2.16, what is the F statistic?
(c) Give an approximate (from a table) or exact (from software) P-value. What do you conclude?
Why was/were the firms investigated for antitrust behavior - Identify some of the costs (pecuniary and nonpecuniary) associated with the antitrust behavior
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much has been made of the fact that people dont consistently act with scientific rationality. what is meant by
answer the next question on the basis of the following production possibilities data for landia and scandia landia
Using the aggre- gate demand-aggregate supply model, illustrate an econ- omy with an expansionary gap. If the government is to close the gap by changing government purchases, should it increase or decrease those purchases? In the long run, what ha..
address a professional meeting and explain microeconomics macroeconomics and their differences. please answer the
You can analyze your data and display it in a histogram (a column chart that displays frequency data) by using the Histogram tool of the Analysis ToolPak. This data analysis add-in (add-in: A supplemental program that adds custom commands or custom f..
Supply-side inflation is caused by
Ann McCutcheon is hired as a consultant to a firm producing ball bearings. This firm sells in two distinct markets, each of which is completely sealed off from the other. What price should managers charge in each market?
Analyze the economic impact of contracting, governance and organizational form within organizations
If the government were to make university attendance mandatory and subsidize tuition costs with tax dollars, how might this affect a nation's economic growth?
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