Mathematics, 15.11.2019 21:31 katherinelondon4002
The national football league (nfl) polls fans to develop a rating for each football game. each game is rated on a scale from 0 (forgettable) to 100 (memorable). the fan ratings for a random sample of 12 games follow. 57 62 87 74 73 72 19 58 81 78 83 73
a. develop a point estimate of mean fan rating for the population of nfl games (to 2 decimals).
b. develop a point estimate of the standard deviation for the population of nfl games (to 4 decimals).
Answers: 1
Mathematics, 20.06.2019 18:04
Drag each scenario to show whether the final result will be greater than the original value, less than the original value, or the same as the original value. 1. a 25% decrease followed by a 50% increase 2. a 20% decrease followed by a 25% increase
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Chose the graph below that represents the following system of inequality’s
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Mathematics, 22.06.2019 03:50
Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.
Answers: 3
Mathematics, 22.06.2019 07:00
What classification best describes 5x+10y+15z=60 2x+4y+6z=60 x+2y+3z=60
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The national football league (nfl) polls fans to develop a rating for each football game. each game...
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