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The measure of forecast accuracy that is not influenced by the measurement scale of the time series data is:
a. the mean absolute deviation (MAD).
b. the mean square error (MSE).
c. the root mean square error (RMSE).
d. the mean absolute percentage error (MAPE).
Choosing the appropriate the sampling design for the given data
Z score on comparison distribution for sample score and your conclusion. Suppose that all population are normally distributed.
Calculated test statistic, decision about the null hypothesis interpretation of results, and a list of references consulted.
To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.
Regression equation to predict the dependent variable using multiple regression analysis:
Change the frequencies to percentages - is there a group more likely to get high salaries.
A human factors psychologist studied three computer keyboard designs.
Robinson & Associates performs employment screening for large companies in southern California. It usually follows two-step process. First potential applicants are given a test that covers basic knowledge and intelligence. If applicants score b..
Assuming the population is large, which sample size will give the smallest standard deviation to the statistic and select the numbers for the first five to be interviewed.
According to Advertising Age, average base salary for women working as copywriters in advertising firms is higher than average base salary for men. The average base salary for women is $67,000 and the average base salary for men is $65,500 (Workin..
What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?
Create the corresponding decision tree and make recommendations.
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