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Question: Mistake. A clerk entering salary data into a company spreadsheet accidentally put an extra "0" in the boss's salary, listing it as $2,000,000 instead of $200,000. Explain how this error will affect these summary statistics for the company payroll:
a) measures of center: median and mean.
b) measures of spread: range, IQR, and standard deviation.
With reference to Exercise 42, test at the 0.02 level of significance whether it is reasonable to assume that the two populations sampled have equal variances.
researcher seth b. young measured the walking speed of travelers in san francisco international airport and cleveland
only 3 reported that their health was excellent. Find the probability that when 13 adults are randomly selected, 3 or fewer are in excellent health.
the following regression model has been computed based on a sample of twenty observations 34.2 19.3x. the first
the life in hours of a 75-watt light bulb is known to be normally distributed with s25 hours. a random sample of 20
Carry out a hypothesis test to see if our belief can be supported. State the null hypothesis and the alternative hypothesis that we would use for this test.
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
Visit a local business in your community. If it is not possible to visit, then choose a business you are familiar with. Identify the hazards within the occupancy and what type of fire protection system (FPS)would address the fire potential contain..
Test the hypothesis that the observations come from a population having a Poisson distribution with mean .3.
suppose that you were trying to determine if the population proportion of americans that currently believe that nuclear
1. a researcher examines the records of all registered voters in one city and finds that 43 are registered democrats.
The ancient Greeks thought that the most pleasing shape for a rectangle was one for which the ratio of the length to the width was 8 to 5, the golden ration.
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