Mathematics, 11.03.2020 02:39 Isaiahtate053
Consider the following sample of observations on coating thickness for low-viscosity paint.
0.82 0.88 0.88 1.04 1.09 1.17 1.29 1.31
1.33 1.49 1.59 1.62 1.65 1.71 1.76 1.83
Assume that the distribution of coating thickness is normal (a normal probability plot strongly supports this assumption).
(a) Calculate a point estimate of the mean value of coating thickness. (Round your answer to four decimal places.)
(b) Calculate a point estimate of the median of the coating thickness distribution. (Round your answer to four decimal places.)
State which estimator you used and which estimator you might have used instead. (Select all that apply.)
(c) Calculate a point estimate of the value that separates the largest 10% of all values in the thickness distribution from the remaining 90%. [Hint: Express what you are trying to estimate in terms of μ and σ.] (Round your answer to four decimal places.)
(d) Estimate P(X < 1.6), i. e., the proportion of all thickness values less than 1.6. [Hint: If you knew the values of μ and σ, you could calculate this probability. These values are not available, but they can be estimated.] (Round your answer to four decimal places.)
(e) What is the estimated standard error of the estimator that you used in part (b)? (Round your answer to four decimal places.)
Answers: 3
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Mathematics, 22.06.2019 01:40, ptanner706
Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3
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Mathematics, 22.06.2019 03:00, Sydewise9242
Define the type of sequence below. -2,0,2,4,6 a. both arithmetic and geometric b. arithmetic c. neither arithmetic nor geometric d. geometric
Answers: 3
Consider the following sample of observations on coating thickness for low-viscosity paint.
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