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An employee gives a pre-employment evaluation to a large group of applicants. The scores are normally distributed with a mean of 154 and a standard deviation of 21. The employer wants to interview only those applicants who score in the top 15%. What should the cut-off score be for the interviews? (Round to nearest whole number).
176
181
166
173
The summation sign is usually represented by:
Answer all of these questions using R Commander. Include all graphs, outputs from R Commander.
Perform hypothesis testing on one variable's data.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots
At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
how many chocolate chip cookies will he need to sample to estimate the mean to within 2, what is a 99% confidence interval for the average number of chips per cookie?
Using the simple test of independence (described in the lecture), decide if the events high calorie and high fiber are independent or dependent. Show your work.
Write all the possible samples of size 2 and calculate the average or median of each one.
Describe and analyze your quantitative data and Briefly address the data analysis process.
The Minitab output for the Tukey Least Significant Difference multiple comparisons is below. Which means are different and similar
Let X be the number of yes votes obtained from a random sample of 200 out of the entire voting population. What is the expected value of X if, in fact, 65% of all voters supported the dictator?
Find the probability that a randomly selected employee earns less than $5.43.
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