Mathematics, 15.11.2019 20:31 10040813
Atoy manufacturer wants to know how many new toys children buy each year. assume a previous study found the standard deviation to be 1.5. she thinks the mean is 6.9 toys per year. what is the minimum sample size required to ensure that the estimate has an error of at most 0.11 at the 80% level of confidence? round your answer up to the next integer.
Answers: 1
Mathematics, 21.06.2019 16:30
Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?
Answers: 3
Mathematics, 21.06.2019 19:30
Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts
Answers: 2
Mathematics, 21.06.2019 23:00
Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza
Answers: 2
Atoy manufacturer wants to know how many new toys children buy each year. assume a previous study fo...
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