Question: Analyzing the most recent data, Marina's manager Dr. Stein found out that in 2018 the anti-cancer prescription drug claims submitted by Healthy Life clients contained

  1. Analyzing the most recent data, Marina's manager Dr. Stein found out that in 2018 the anti-cancer prescription drug claims submitted by Healthy Life clients contained amounts considerably greater than he anticipated. Specifically, he asked Marina to check whether patients with Oncotype DX scores over 30 claimed, on average, more or less than $1000 in 2018. Using the systematic sampling method Marina selected 60 patients from this category (see the Major Assignment Data file). Please help Marina to test the claim that the population mean annual amount of the anti-cancer prescription drug claims was $1000 in 2018. Use a 0.01 level of significance. Also construct a 99% confidence interval for the mean claims amount.

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