Mathematics, 29.04.2021 18:00 aria0826
The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day. They would like the estimate to have a maximum error of 0.11 gallons. A previous study found that for an average family the standard deviation is 2.3 gallons and the mean is 19.9 gallons per day. If they are using a 80% level of confidence, how large of a sample is required to estimate the mean usage of water
Answers: 3
Mathematics, 21.06.2019 20:00
You are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).
Answers: 1
Mathematics, 21.06.2019 22:00
If my mom gets $13.05 an hour, and she works from 3: 30 to 10: 45 in the morning, how much money does my mom make?
Answers: 1
Mathematics, 21.06.2019 22:30
Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell
Answers: 1
The water works commission needs to know the mean household usage of water by the residents of a sma...
Mathematics, 16.10.2019 01:10