Mathematics, 06.05.2020 02:11, hdkdkdbx
The following observations are on stopping distance (ft) of a particular truck at 20 mph under specified experi- mental conditions ("Experimental Measurement of the Stopping Performance of a Tractor-Semitrailer from Multiple Speeds," NHTSA, DOT HS 811 488, June 2011): 32.1 30.6 31.4 30.4 31.0 31.9 The cited report states that under these conditions, the maximum allowable stopping distance is 30. A normal probability plot validates the assumption that stopping distance is normally distributed.
a. Does the data suggest that true average stopping distance exceeds this maximum value? Test the appropriate hypotheses using ? 01
b. Determine the probability of a type II error when ?- .01, ? .65, and the actual value of is 31 . Repeat this for ?-32 (use either statistical software or Table A.17) of (b) 01 and ?
c. Repeat (b) using ? = .80 and compare to the results
d. What sample size would be necessary to have ? .10 when ? 31 and ? .65?
Answers: 3
Mathematics, 21.06.2019 20:00, dbn4everloved
Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?
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Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.
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Mathematics, 22.06.2019 01:30, malikbryant2002
At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.
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The following observations are on stopping distance (ft) of a particular truck at 20 mph under speci...
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