Question: What did Julie conclude about the data pattern of Alomega Sales? In Example 1.1, the president of Alomega, Julie Ruth, had collected data from her

What did Julie conclude about the data pattern of Alomega Sales?
In Example 1.1, the president of Alomega, Julie Ruth, had collected data from her company's operations. She found several months of sales data along with several possible predictor variables (review this situation in Example 1.1). While her analysis team was working with the data in an attempt to forecast monthly sales, she became impatient and wondered which of the predictor variables was best for this purpose.

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The autocorrelation function for sales follows Autocorrelations suggest an up and down pattern that ... View full answer

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