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Planning to study for your statistics examination with a group of classmates, one of whom you particularly want to impress. This student has volunteered to use Microsoft Excel to get the needed summary information, tables, and charts for a data set containing several types of variables assigned by the instructors for study purposes. This student comes over to you with the printout and exclaims: "I've got it all: the means, the medians, the standard deviations, the box-and-whisker plots, the pie charts--for all of our variables! The problem is, some of the output looks weird...like the box-and-whisker lots for gender and for major area of study....and the pie charts for grade point average and for height. Also, I can't understand why Professor Krehbiel said we can't get the descriptive stats for some of the variables. I got them for everything! See: the mean for height is 68.23, the mean for grade point average is 2.76, the mean for gender is 1.50, and the mean for major area of study is 4.33."
Boris races his bicycle for 264 feet . A wheel of his bicycle turns 44 times as the bicycle travels this distance. What is the diameter of the wheel?
A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 1 in every one thousand. State the null hypothesis and the alternative hypothesis for a test of significance.
Simple Probability, Sample Spaces, Events, A couple has three children, assume the likelihood of a boy is the same as a girl:
What amount of time will the salvage value be $1200 After what amount of time will the salvage value be half the original value?
Discuss the implications of the Sarbanes Oxley Act on the accounting profession. Imagine that Congress was concerned about the Act and has asked you to provide your professional accounting opinion on the following issues.
a bacteria culture grows according to the formula n t -4t2 40t 25 where n is the number of bacteria after t minutes
State at least two hypotheses you might use, specifically stating the null & alternate hypotheses & the type errors that might occur.
Consider the k-out-of-n system (info on the system: A system consists of n independent components. Each component functions with probability p
You want to create a mileage grid showing the distance between every pair of the 50 U.S. state capitals. How many numbers will you have to compute?
What are the break even values? In other words, how many boxes of golf balls must they sell to break even?
a rectangular playground is to be fenced and divided into two by another fence parrallel to one side of the play ground. 216 feet of fencing is used.find the dimensions of the playground that maximixe the total enclosed area.
The proprtion of US households that own a DVD player can be represented by the logistic model function 0 .9 P (t ) = . Let t = 0 represent the year 2000. 1 + 6e 0.32t a. When will the proportion of households reach 0.6 (60%)? B. When will the prop..
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