Mathematics, 05.05.2020 09:15, iva60
A manufacturer of floor mops would like his product to last 700 hours, on the average. He hopes the mean number of hours is not a lot less than 700 (people will not continue to buy his product) or a lot more than 700 (people would seldom have to buy the product). However, the manufacturer has reason to believe the mean may have changed. A random sample of 48 items shows that XĂ = 675 and s = 77 hours.
a- complete the test at the 5% level of significance.
b- what type of error may have been made?
c- what is the probability of committing this error?
Answers: 2
Mathematics, 21.06.2019 16:00, isabelsmhl
To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet
Answers: 2
Mathematics, 21.06.2019 20:30, oliwia0765
Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x
Answers: 2
A manufacturer of floor mops would like his product to last 700 hours, on the average. He hopes the...
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