Mathematics, 05.05.2020 05:39, evazquez
The director of a radio broadcasting company wants to determine whether the mean length of commercials on his station is equal to 24 seconds. He samples 200 commercials, and finds that the average length of these commercials is 26.3 seconds, with a standard deviation of 7.2 seconds. He uses a significance level of 5%. What is the value of the test statistic?
Answers: 3
Mathematics, 21.06.2019 12:30, nikejose11
Anne is twice as old as bill, and bill is 3 years older than christie. the sum of anne s and christie s ages equal 72. find their age difference.?
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Mathematics, 21.06.2019 20:00, desereemariahha
Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?
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Find the values of the variables in the kite
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Mathematics, 21.06.2019 22:30, lorilhuff8197
Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de
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The director of a radio broadcasting company wants to determine whether the mean length of commercia...
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