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An investigater wants to estimate caffeinne intake in high school students, how many students would be required to ensure that a 95%confidence interval for the mean cofee intake (measure in mg)is within 15mg of the true mean? Assume the standard deviation in coffee intake is 68mg.
How many students whould be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 5 percentage points of the true proportion with 95% confidence?
Know someone who is prone to anger? Nature has a way to calm such people: they get heart disease more often. Several observational studies have discovered.
Construct a scatterplot for the data. What type of relationship, linear or curvilinear, appears to exist between failure time and solder temperature?
In a large clinical trial of 500 patients treated with a new drug, 40 reported sideeffects how many patients would need to be sampled to estimate the desired proportion to within a margin of error of 1%, using 98% confidence?
What is the cumulative incidence of CVD over 10 years? What is the prevalence of CVD at baseline? What is the prevalence of CVD at 10 years?
how much less wrinkling? you found that the hylite process results in significantly greater wrinkle resistance thatn
What is the probability of under running the POE?
In which of the following circumstances would you allow collecting personal information without the subjects' consent?
If the cars meet and couple together, determine the speed of both cars just after the coupling. Find the difference between the total kinetic energy before and after coupling has occurred, and explain qualitatively what happened to this energy.
comparing continuous distributionsthe lifetime of one of dotcoms electronic equipment has a mean of 400 hours and
What is the probability that the option will be exercised?
Provide SPSS output for the selected test and (where specified) write up the results in APA format as you would for a journal article.
Why is Nixon referred to in your text as the "accidental liberal"? Is that a good or a bad label?
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