Question: hypothesis testing QUESTION TWO (8 marks) It is claimed that a vacuum cleaner uses an average of 46kwh per year. If a random sample of

hypothesis testing

QUESTION TWO (8 marks) It is claimed that a vacuum cleaner uses an average of 46kwh per year. If a random sample of 34 homes included in a planned study indicates that vacuum cleaners use an average of 42 kwh per year with a standard deviation of 11.9kwh, does this suggest that at the 0.05 level of significance that vacuum cleaners use, on average, ess than 46kwh annually? Assume the population of kwh to be normal

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