Mathematics, 12.04.2021 20:00 KnMcdonaldk93906
Here are the tips of 25 randomly selected patrons, measured in percent of total bill. 20.8 18.7 19.9 20.6 21.9 23.4 22.8 24.9 22.2 20.3 24.9 22.3 27.0 20.4 22.2 24.0 21.1 22.1 22.0 22.7 19.1 20.6 22.3 22.0 29.4 The standard deviation of tips is known to be 2.5. a) What is the 94% confidence interval for the mean tip of patrons if the distribution of tips is approximately Normal? b) What is the 98% confidence interval for the mean tip of patrons if the distribution of tips is unknown?
Answers: 1
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1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.
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Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .
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Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.
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Here are the tips of 25 randomly selected patrons, measured in percent of total bill. 20.8 18.7 19.9...
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