Mathematics, 06.10.2019 18:00 supchef
The cost of a lamp has increased by 30% to £65. work out the original price
Answers: 2
Mathematics, 21.06.2019 23:00
During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss
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Mathematics, 22.06.2019 04:00
Which function has an inverse that is also a function? a. g(x) = 2x-3 b. k(x) = -9x2 c. f(x) |x+2| d. w(x) = -20
Answers: 1
Mathematics, 22.06.2019 04:30
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
The cost of a lamp has increased by 30% to £65. work out the original price...
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