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If the following expression (5t+5)/(2t+5)
is to make sense, the values that t can take must be restricted. State the restriction on it.
test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
Pierre has a utility function for total asset position of u(x)=ln(x), His assets currently consist of $50,000 in cash and a rare violin he inherited from a rich uncle which is valued at $100,000.
Given the following hypotheses: the true mean equals 100 (the null) and the true mean does not equal 100 (the alternate), a random sample of six resulted in the following values:
The national median sales price for new single-family homes is $230,000 (The Associated Press, March 25, 2006). Assume that the following data were obtained for sales of existing single-family homes in Houston and Boston.
If a student is randomly selected what is the possibility that the student is male and from out of state.
This is a quantitative analysis paper that looks at statistical data and evaluates the results. What are you trying to find? Where did you find your data? How did you get your data?
Based on information, compute the following: Percentage (or portion) of children who watch television less than 6.5 hours a week.
Determine whether the given value is a statistic or a parameter. A researcher determines that 42.7% of all downtown office buildings have ventilation problems. Is this a statistic or a parameter; explain your answer.
A consumer products testing group is evaluating two competing brands of tires, Brand 1 and Brand 2. Tread wear can vary considerably depending on the type of car
A sample of 50 customers resulted in a sample mean of $90. What is the probability of obtaining a sample with a sample mean smaller than $90?
A sociologist is studying the prevalence of crime in one major city. In a sample of 225 randomly selected residents, 60 say that they have been victimized by a criminal.
Briefly explain how the standard deviation influences outcome of hypothesis test. How does σ influence measures of effect size?
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