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The distribution of income in some Third World countries is considered wedge shaped (many very poor people, very few middle income people, and even fewer wealthy people). Suppose we pick a country with a wedge shaped distribution. Let the average salary be $3,000 per year with a standard deviation of $6,000. We randomly survey 1,000 residents of that country.
Give the distribution of X. (Round your numerical values to two decimal places.)
X ~_______(________,___________)
What are the coefficients of the equations? Plot the experimental data along with the curves predicted by the linear regression analyses, and find the value of y at your data point using the three curve fitting schemes.
A car dealership has 6red,12silver, and 5black cars on the lot. Ten cars are randomly chosen to be displayed in front of the dealership. Complete parts (a) through (c) below.
Explain each sampling technique discussed in the "Visual Learner: Statistics" in your own words, and give examples of when each technique would be appropriate.
Reports indicate that graduating seniors in a local high school have an average (m) reading comprehension score of 72.55 with a standard deviation
The probability of each. If the answer cannot be calculated, enter zero (0) as your answer. Round to 4 decimal places otherwise. YES, you need, therefore, to look at the 5th decimal place.
the e-mail usage for two different plants of a large company was compared at level of significance 0.05. a sample of
Construct a 99% confidence interval for the proportion of customers favoring underground installation.
The makers of the Plus 20 Hard card, a plug-in hard disk unit on a PC board, have recently done a marketing research study in which they asked two independently
A fisheries biologist who had to estimate the number of prawns in two aquaculture ponds chose three locations at random within each pond and deployed
This is an Excel sheet that calculates both probabilities and percentiles for any normal or standard normal probability distribution. Replaces normal probability tables.
explain how measure of central tendency and measure of dispersion are complementary to each other to describe the
A concessionaire for the local ballpark has made a table of conditional values for the different alternatives also states of nature
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