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A researcher wanted to know if students who do not plan to apply for financial aid had more variability in SAT math test than those who plan to do so. The summarized results are as follows:
Do not plan to apply for finanial aid Plan to apply for financial aid
n= 35 38
s= 123.1 119.4
Do students who do not plan to apply for financial aid have a higher standard deviation on the math SAT than students who plan to apply for financial aid at the alpha = 0.01 level of significance? (Assume normality)
Calcualte F* = (Round to 2 decimal places)?
p-value (symbol) (value)?
Decision (Enter R for reject Ho and F for fail to reject Ho)?
1.the st. paul pioneer press has assigned its one remaining reporter to write an article about gasoline prices in the
let x1...x25 be a random sample from a normal distribution with mean mu and variance 100. the null hypothesis h0 mu50
Determine whether the sampling method is independent or dependent for the following example. A researcher wants to know whether the newly issued "state" quarters have a mean weight that is different from "traditional" quarters.
What percent of the Fords traveled 62.000 miles or less during the year?
in a human factor experimental project it has been determined that the reaction time of a pilot to a visual stimulus is
1 you are given the following payoff tyable in units of thouands of dollars for a decision analysis problem without
A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial, they wish to determine whether there is a difference between the effectiveness for women and for men. At = .05, what is the test v..
a write paragraph about the observed effectb state the theory you are working withc write out the predicted value
Under what circumatances do you use a one-sided confidence interval instead of a 2 sided confidence interval?
Data shows the average GPA of students at a school is 2.9. The GPA of a random sample of 16 biology students is 3.1 (with sample standard deviation= 1.2)
An old saying in golf is "you drive for show and you putt for dough." The point is that good putting is more important than long driving for shooting low scores and hence winning money.
Recognizing that the hike to the campsite is a long one, a limit of 35 pounds has been set as the maximum total weight of the items to be carried. Formulate this as a LP problem to maximize the total utility of items carried.
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