1. In a study 5% of patients taking Clarinex-D reported having insomnia. If 240 users of Clarinex-D are selected, how ma
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1. In a study 5% of patients taking Clarinex-D reported having insomnia. If 240 users of Clarinex-D are selected, how ma
1. In a study 5% of patients taking Clarinex-D reported having insomnia. If 240 users of Clarinex-D are selected, how many would be expected to experience insomnia? Would 20 people experiencing insomnia be unusual? 2. GE manufactures a Crystal Clear 60-watt light bulb and advertises that it will last 1500 hours. Suppose the lifetimes of the bulbs are approximately normally distributed, with a mean of 1500 hours and a standard deviation of 58 hours. What proportion of the bulbs will last less than 1500 hours?
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