Mathematics, 16.03.2020 19:24 black99girl
A survey conducted by the American Automobile Association showed that a family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and a sample standard deviation of $75.50. a. Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to 2 decimals). ( , ) b. Based on the confidence interval from part (a), does it appear that the population mean amount spent per day by families visiting Niagara Falls differs from the mean reported by the American Automobile Association
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, 22.06.2019 04:30
The motion of a weight that hangs from a spring is represented by the equation h=8sin(2pi/3t). it models the weight’s height above or below the rest position as a function of time. approximately when will the object be 3 inches above the rest position?
Answers: 1
Mathematics, 22.06.2019 04:30
The function f(x) = 1/6(2/5)x is reflected across the y-axis to create the function g(x). which ordered pair is on g(x)? a. (-3, 4/375) b. (-2, 25/24) c. (2, 2/75) d. (3, -125/48)
Answers: 2
A survey conducted by the American Automobile Association showed that a family of four spends an ave...
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