Mathematics, 12.03.2020 18:25 OlamideO3
11. Use the given information to find the minimum sample size required to estimate an
unknown population mean p.
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How many commuters must be randomly selected to estimate the mean driving time of Chicago
commuters? We want 98% confidence that the sample mean is within 4 minutes of the population
mean, and the population standard deviation is known to be 12 minutes.
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Answers: 1
Mathematics, 21.06.2019 19:30
The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?
Answers: 1
Mathematics, 21.06.2019 23:30
If a runner who runs at a constant speed of p miles per hour runs a mile in exactly p minutes what is the integer closest to the value p
Answers: 2
Mathematics, 22.06.2019 00:30
Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?
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
11. Use the given information to find the minimum sample size required to estimate an
unknown...
unknown...
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