Mathematics, 24.07.2020 14:01, jayzie1728
An employee at an automobile factory wants to know the true diameter of car rotors for a specific make and model of car. (Assume that the rotors are normally distributed.) Taking a sample of 10 rotors, the mean of the rotors is 22.3 inches. a) If it is known that the population standard deviation of these rotors is .2 inches, find a 98% confidence interval for the true diameter of the rotors
Answers: 1
Mathematics, 21.06.2019 21:30, amesha62
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, haleysmith8608
In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.
Answers: 1
Mathematics, 22.06.2019 02:00, dontcareanyonemo
Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?
Answers: 1
Mathematics, 22.06.2019 03:30, bar23cardenine01
How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge
Answers: 3
An employee at an automobile factory wants to know the true diameter of car rotors for a specific ma...
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