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We know many types of data fall into a normal distribution with most of the observations falling toward the middle. However, sometimes data are outliers or data that are very different - larger or smaller - from the rest of the members of the sample. Think of an example in the real world of an outlier and discuss its effect.
Make (a) a frequency table, (b) a histogram, and (c) a frequency polygon. Then describe the general shape of the distribution.
1. what information does calculating standard deviation provide? how is the z-score related to standard deviation?2.
Find the probability that a standard normal random variable will assume a value between: Find a z such that 70% of the area is above that value.
(12,50), (6, 36), (20,60), (5,24), (38,70), (3,24), (8, 42), (20,65), (10, 40), (15, 60). Your best guess of the correlation coefficient between the two variables is?
Interpret the meaning of the slopes of the given multiple regression equation
What is the probability that of the last 100 new juvenile delinquents put on probation, 30 or more will commit another crime?
Explain the chi-square test of homogeneity and show the formula for the test statistics for the test of homogeneity. Describe a sign and test and show the six steps of the test-of-hypothesis procedure.
question researchers at a food company are interested in how a new spaghetti sauce made from green tomatoes and green
the monthly growth of the height of trees in montana has a mean of 47.5 and a standard deviation of 11.6. assume a
a newspaper article reported that the typical american family spent an average of 81 for halloween candy and costumes
an automobile mileage study tested the following hypotheses.hypothesish0ugtor equal to 25 mpgconclusionmanufacturers
The average salary of a group of sales people is $32,500 with a standard deviation of $2,500. Answer the following: How much would a salesperson make if he/she is 2 standard deviations above the mean?
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