Answers: 2
Mathematics, 22.06.2019 04:30, RichardKing2376
Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t. inv.2t to find the value of t for the interval calculation.
Answers: 1
Mathematics, 22.06.2019 06:00, lakenyahar
Robert is replacing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other is 5.7 feet. the sod costs y dollars per square foot.
Answers: 2
Mathematics, 22.06.2019 09:30, kiki8734
Point a is located at (? 5, 2) on a coordinate grid. point a is translated 1 unit to the left and 5 units down to create point a'. which measurement is closest to the distance between point a and point a' in units? a) 4.7 units b) 4.9 units c) 5.1 units d) 5.3 units
Answers: 2
How can you make this into a fraction 0.33...
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