Mathematics, 25.11.2021 07:10 yannie16
A hospital director believes that more than 25 % of the test tubes contain errors and feels an audit is
required. A sample of 360 tubes found 108 errors. Is there sufficient evidence at the 0.05 level to
substantiate the hospital director's claim?
State the null and alternative hypotheses for the above scenario.
Answers: 3
Mathematics, 21.06.2019 19:00
What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)
Answers: 2
Mathematics, 21.06.2019 20:30
Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
Answers: 1
A hospital director believes that more than 25 % of the test tubes contain errors and feels an audit...
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