Mathematics, 29.10.2020 16:40, cicimarie2018
Hadleigh babysat last weekend. She earns $15 an hour plus an additional $25. If she made a total of $130, how long did she babysat for?
Answers: 3
Mathematics, 21.06.2019 22:10, carsondelane13
Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.
Answers: 2
Mathematics, 21.06.2019 23:00, sugar1014
According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.
Answers: 1
Hadleigh babysat last weekend. She earns $15 an hour plus an additional $25. If she made a total of...
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