Models Such as Moving Average,exponential Smoothing,and Linear Trend Use Only

question 57

Multiple Choice

Models such as moving average,exponential smoothing,and linear trend use only:

• A) future values of Y to forecast previous values of Y
• B) previous values of Y to forecast future values of Y
• C) multiple explanatory variables (not just values of Y)to forecast future values of Y
• D) ratio-to-moving-average methods

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Definitions:

Test Statistic

A value calculated from sample data during a hypothesis test. It is used to decide whether to reject the null hypothesis.

P-value

The likelihood of achieving equally extreme or more extreme test results than those observed, with the presupposition that the null hypothesis is correct.

Confidence Interval Estimate

A range of values, derived from sample data, that is likely to contain the value of an unknown population parameter, expressed with a certain level of confidence.

Proportion of Defectives

The fraction or percentage of items in a batch or production that are considered defective or fail to meet quality standards.