In general, when people diet they typically lose 10 lbs. (?σ = 2). A random sample of 16 people on the keto diet lost 15 lbs. Do people on the keto diet lose more or less weight than people on diets in general?   2.Which of the following are assumptions of the Z-test? a) The sample was randomly selected b) The distribution of weight loss in the population is normal c) Weight loss is scalar d) Weight loss is a bimodal distribution

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