Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The Root Mean Squared Error is best described as a measure of what?Correct. As the name implies, the root mean squared error is a measure of the "average" prediction error for all points in the sample. Average is in quotes because it is in fact, a measure of the variability or dispersion of prediction errors, but it is commonly interpreted as a average.correct answerThe "average" amount of error expected in predictionsThe number of cases that have a non-zero residualThe strength of the correlation between X and YThe sum of prediction error for all points in the sampleThe sum of residuals for all points in the sample Calculate standard error of mean and make an inference about the accuracy of the mean by analyzing problem 4.164 in Statistics for Business and Economics.2.164 Suppose a random sample of n = 25 measurements is selected from a population with mean μ and standard deviation σ. For each of the following values of μ and σ, give the values of μx¯ and σx¯.a. μ = 10, σ = 3b. μ = 100, σ = 25c. μ = 20, σ = 40d. μ = 10, σ = 1003. Calculate the variance and standard deviation for samples with the following statisticsRound to the nearest thousandth. I need answers for B and C.n=11, ∑x²=87, ∑x=22 Answer: Variance: 4.300Standard Deviation: 2.074b. n=41, ∑x²=367, ∑x=90c. n=20, ∑x²=16, ∑x=15
Determine the rejection region for the hypothesis Ho : mean D= 0 if H a : mean D > 0. Use a = 0.01. z>
Which statement about re-expressing data is not true? I. Unimodal distributions that are skewed to the right will be made more symmetric by taking the square root of the variable.
Assume the wages are normally distributed with a standard deviation of $0.45. If a worker at this car wash is selected at random, what is the probability that the worker earns more than $6.75?
Compare a three-month moving average forecast with an exponential smoothing fore-cast for a = 0.2. Which provides the better forecasts using MSE as the measure of model accuracy?
If a customer did not default on a loan, what is the probability that the rating system would have classified the applicant in the reject category?
Discuss why sampling is essential to many research designs, and why, if done correctly may be more accurate than attempting census measurement.
Let C be a circle enclosing the distinct points z1,z2,...zn. Let p(z)=(z-z1)(z-z2)...(z-zn) be the polynomial of degree n with roots at these points.
The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart.
In general how is the magnitude of the standard error of estimate related to the value of correlation?
When constructing your decision tree, you can reuse the EMV for the outcome after the decision to not hire the consulting team.
In a graduating class of 753 high school seniors, what is the probability that 15 or more will live beyond their 90th birthday?
Suppose 12% of these workers work more than 48 hours. Based on this percentage, what is the standard deviation of number of hours worked per week for those workers.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd