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A box of 1717 parts contains 77 that are defective. A worker picks parts one at a time and attempts to install them. Find the probability of each outcome in (a) through (d).
(a) The first two chosen are both good. (Round to four decimal places as needed.)
(b) At least one of the first three is good. (Round to four decimal places as needed.)
(c) The first four picked are all good. (Round to four decimal places as needed.)
(d) The worker has to pick five parts to find one that is good. (Round to four decimal places as needed.)
Create a correlation table for the variables in our data set. Reviewing the data levels from week 1, what variables can be used in a Pearson's Correlation table (which is what Excel produces)
Discuss the shape of the distribution of the price of new house
1. For a given N, the interval that bounds the population mean at the 99% confidence level is ____ that which bounds the population mean at the 95% confidence level. A. equal to B. greater than C. less than D. can't be determined
The portfolio assets are inverted in the Dow Jones fund
The text tells us that a Pearson correlation coefficient is a measure of the strength and direction of a linear relationship between two variables. A scatter plot provides a visual representation of the relationship. Do not take examples from text.
Consider a class in which there are 40 students enrolled. (In what follows, ignore February 29th)John is a student in this class. What is the probability that at least one other student in the class has John's birthday (Day and month, but not necessa..
A Gallup Poll used telephone interviews to survey a sample of 1025 U.S. residents over the age of 18 regarding their use of credit cards. The poll reported that 76% of Americans said that they had at least one credit card. Give the 95% margin of erro..
A Gallup poll conducted during May 20 - 22, 2005, asked 1006 Americans, "During the past year, about how many books, either hardcover or paperback, did you read either all or part of the way through?" Results of the survey indicated that the me..
Do a literature review on the use of Poisson
Describe the four patterns typically found in time series data. What is meant by the expression "decomposition" with regard to forecasting? Briefly describe the process.
What are the variance and standard deviation?
Independent-Samples t Test with SPSS In your research, you may find that you must compare the means of two samples related to one particular variable. For example, you may have population samples from two ethnic groups that you wish to compare agains..
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