Question

# The data below shows age (x, in years) and weekly entertainment expenses (y, in dollars) for...

The data below shows age (x, in years) and weekly entertainment expenses (y, in dollars) for a random sample of ten adults. The least squares regression model for this data is yˆ=344.07 − 4.21x.y^=344.07 − 4.21x. Select all valid statements regarding the use of this regression model.

You must make a selection for each option. Click once to place a check mark for correct answers and click twice to place an "x" for the wrong answers.

• It is appropriate to use this model to predict average weekly entertainment expenses for a 53-year-old adult.unanswered
• It is appropriate to use this model to predict average weekly entertainment expenses for a 36-year-old adult.unanswered
• It is appropriate to use this model to predict average weekly entertainment expenses for a 19-year-old adult.unanswered
• It is appropriate to use this model to predict average weekly entertainment expenses for a 65-year-old adult.unanswered
 Age Entertainment expenses 21 242 23 265 27 275 30 192 33 215 42 98 45 164 47 128 55 159 61 85

y^=344.07 − 4.21x

as the model contain the values of 53 and 36 but not 19 and 65.

• It is appropriate to use this model to predict average weekly entertainment expenses for a 53-year-old adult. True
• It is appropriate to use this model to predict average weekly entertainment expenses for a 36-year-old adult. True
• It is appropriate to use this model to predict average weekly entertainment expenses for a 19-year-old adult. False
• It is appropriate to use this model to predict average weekly entertainment expenses for a 65-year-old adult. False

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