Mathematics, 14.12.2019 03:31 stussy44
According to a recent survey, americans get a mean of 7 hours of sleep per night. a random sample of 50 students at west virginia university revealed the mean length of time slept last night was 6 hours and 48 minutes (6.8 hours). the standard deviation of the sample was 0.9 hours.
at the 5% level of significance, is it reasonable to conclude that students at west virginia sleep less than the typical american?
Answers: 3
Mathematics, 21.06.2019 17:30
Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh
Answers: 1
Mathematics, 21.06.2019 18:30
Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?
Answers: 3
Mathematics, 21.06.2019 22:00
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
Answers: 1
According to a recent survey, americans get a mean of 7 hours of sleep per night. a random sample of...
Chemistry, 24.05.2021 23:50
English, 24.05.2021 23:50
Biology, 24.05.2021 23:50
Health, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Physics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50
Mathematics, 24.05.2021 23:50