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Construct a data frame to test a new classification algorithm when the null hypothesis is true. The data frame should contain "microarray data" from 5 genes monitored across 10 patients. Since this is the null hypothesis, the numbers should be all random. Construct a data frame containing 50 numbers from a random normal distribution. Label the first 5 samples with "cancer" and the remaining 5 samples with "healthy."
State three advantages for using related samples in behavioral research. Describe in words what the degrees of freedom are for a related-samples t test.
As the purchasing agent of your company you are deciding what type of Xerox machine to buy for your company. You have narrowed your choices to brand X and brand Y.
Please discuss an application of ANOVA that might be undertaken in a workplace. What are the 3 or more treatments? What is the response variable?
annual pay an employment information service claims the mean annual pay for the full-time male workers over age 25 and
Let TA, TB, and Tc be the failure times of components A, B, and C. Assume these are independent exponential random variables with rates a, ß, and ?.
a process for manufacturing an electronic component yields items of which 2 are defective. a quality control plan is to
The assumption of independent error terms in regression analysis is often violated when using time series data and is called the problem of Autocorrelation.
Graduation rates. One of the factors used to evaluate undergraduate programs is the proportion of incoming students who graduate.
Would the correlation be greater, smaller, or about the same if you calculated the correlation between the weights of individual men and their heights (rounded to the nearest inch)? Explain your answer
suppose that a population is known to be normally distributed with mean 2000 and standard deviation 230. if a random
A child has six blocks, three of which are red and three of which are green. How many patterns can she make by placing them all in a line?
What is the probability of exactly three heads when you flip a coin five times? What is the probability of three or more heads when you flip a coin five times?
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