Mathematics, 27.12.2019 09:31 ashleyzamarripa08
Sean has a collection of. one tenth of the coins are from europe. thirty-two hundreds are from asia. the rest are from africa. write a decimal to show the total part of the coins are from europe or asia.
Answers: 1
Mathematics, 22.06.2019 03:40, NorbxrtThaG
Abottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. the water bottling company’s specifications state that the standard deviation of the amount of water is equal to 0.02 gallon. a random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.995 gallon a. construct a 99% confidence interval estimate for the popula-tion mean amount of water included in a 1-gallon bottle. b. on the basis of these results, do you think that the distributor has a right to complain to the water bottling company? why? c. must you assume that the population amount of water per bottle is normally distributed here? explain. d. construct a 95% confidence interval estimate. how does this change your answer to (b)?
Answers: 2
Mathematics, 22.06.2019 04:20, Derrick253
1. suppose that scores on a knowledge test are normally distributed with a mean of 71 and a standard deviation of 6. a. label the curve: show the mean and the value at each standard deviation: b. if angelica scored a 76 on the test, what is her z-score? (draw her score on the curve above and label) c. what percent of students did angelica score higher than? how can you tell? d. if 185 students took the test, how many students scored higher than angelica?
Answers: 3
Sean has a collection of. one tenth of the coins are from europe. thirty-two hundreds are from asia....
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