Mathematics, 24.12.2019 01:31 lordcaos066
Elly and drew work together to collect data to estimate the percentage of their classmates who own a particular brand of shoe. using the same data, elly will construct a 90 percent confidence interval and drew will construct a 99 percent confidence interval. which of the following statements is true? a. the midpoint of elly's interval will be greater than the midpoint of drew's interval. b. the midpoint of elly's interval will be less than the midpoint of drew's interval. c. the width of elly's interval will be greater than the width of drew's interval. d. the width of elly's interval will be less than the width of drew's interval. e. the width of elly's interval will be equal to the width of drew's interval
Answers: 3
Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
Mathematics, 21.06.2019 22:00
Which of the following graphs could represent a cubic function?
Answers: 1
Elly and drew work together to collect data to estimate the percentage of their classmates who own a...
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