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Home/ Questions/Consider the following sample of observations on coating thickness for low-viscosity paint
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ptntuto
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ptntuto
Asked: April 11, 20222022-04-11T19:27:34+00:00 2022-04-11T19:27:34+00:00In: Statistics-And-Probability

Consider the following sample of observations on coating thickness for low-viscosity paint

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Consider the following sample of observations on coating thickness for low-viscosity paint. 1.09 0.85 0.88 0.88...

Consider the following sample of observations on coating thickness for low-viscosity paint.
  0.85         0.88         0.88        1.04     1.09       1.14      1.29        1.31
  1.39          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.) 
(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 u and o.] (Round your answer to four decimal places.) 
(d) Estimate P(X < 1.5), i.e., the proportion of all thickness values less than 1.5. (Hint: If you knew the values of u and o, 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.)
Revelant knowledge
Normal distributionis also referred to in the form of the Gaussian distribution is a probabilistic distributed that’s symmetric with respect to the mean, indicating that data close to average are much more prevalent in frequency than data further away from that mean.
normal distribution
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    Mason Brown
    2022-04-12T00:14:01+00:00Added an answer on April 12, 2022 at 12:14 am

    Consider the following sample of observations on coating thickness for low-viscosity paint. 1.09 0.85 0.88 0.88...Consider the following sample of observations on coating thickness for low-viscosity paint. 1.09 0.85 0.88 0.88...

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