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A factory's worker productivity is normally distributed. One worker (worker 1) produces an average of 75 units per day with a standard deviation of 20. Another worker (worker 2) produces at an average rate of 65 per day with a standard deviation of 21. What is the productivity that during one week (5 working days) worker 1 will produce more than worker 2?
Test for population mean
Find the ninety-five percent confidence interval for the standard deviation of the ounces of coffee that a machine dispenses in 12-oiince cups. Suppose the variable & normally distributed.
Among U.S. cities with a population of more than 250,000 the mean one-way commute to work is 24.3 minutes. The longest one-way travel time is New York City, where the mean time is 37.9 minutes.
Write the equation of a line perpendicular to the given line but passing through the given point.
How much will the preferred stockholders and the common stockholders receive each year?
Either use the p-value approach to hypothesis testing or use the significance level approach with α = .05.
In word format - Calculate the mean, median, and mode for the following populations of number.
At a certain rate of simple interest $1,000 will accumulate to $1110 after a certain period of time. Find the accumulated value of $500 at a rate of simple interest three fourths as great over twice as long a period of time.
How far is Jared's school from the grocery store? Round the answer to the nearest tenth.
Find the instantaneous velocity when t = 1. Please show me all the steps, explain to me what instantaneous velocity is and how it is calculated (formula).
Justin had $33 before spending b dollars on jeans. How much money remains?
In a survey of 502 human resource professional, each was asked about the importance of the appearance of a job applicant. The survey subjects were randomly selected by pollsters from a reputable market research firm.
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