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1. If the leaf is the hundredths digit, what is the stem for the number 34.679?
2. Consider the values 5.134, 5.532, 5.869, 5.809, 5.268, 5.495, 5.142, 5.483, 5.329, 5.149, 5.240, 5.823. If the leaf is taken to be the tenths digit, why would this make an uninteresting stem-and-leaf display?
How many cars must be randomly selected and tested in order to estimate the mean braking distance of registered cars in the United States.
With standard deviation of 15. Test hypothesis that Mrs. Smith and Mrs. Jones are equally effective teachers. Use 0.10 level of significance.
What research study includes repeated observations over a period of time? What type of research uses focus groups or small studies to get a "feel" for the problem?
Simple! (Takes about 25 minutes to answer.) In a study evaluating "Why minority males graduate American high-schools at lower rates than their counterparts", the following is needed:
a random sample of 16 csn students is taken. the average age in the sample was 27 years with a standard deviation of 4
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your findings to state whether or not the given r represents a significant linear correlation. use a significance level of 0.05. r = 0.434 n=..
Explain why the relative frequency of distribution for the sample does not provide a correct estimate of the distribution of households trip frequency that one would have obtained from a random sample of households.
licence plates in florida have the form a12bcd. that is a letter followed by two digits followed by three more
The table below summarizes results from an experiment in which subjects were classified as diabetic or nondiabetic and then given a treatment. After the treatment, they were again classified as diabetic or nondiabetic. Which combinations of before..
A cumulative frequency distribution is constructed from a frequency distribution by replacing each frequency with the sum of the frequency of the given class and the frequencies of all classes above it, and representing each class by its upper cla..
Your paper should in 500- 600 words 1) summarize the statistical methods that the researchers used in their article and 2) evaluate those statistical methods. Were the techniques they picked (correlation, hypothesis testing, regression, for exampl..
How heavy does a box have to be in order for the box to be labeled overweight?
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