Question: Hypothesis testing A study carried out in March 2019 estimated that the average expenditure in household food in Puerto Rico was $ 1,350. A similar
Hypothesis testing A study carried out in March 2019 estimated that the average expenditure in household food in Puerto Rico was $ 1,350. A similar study carried out by the students of the Statistics course, as a result of the pandemic of COVID-19 in the month of March 2020, with a random sample of 81 people who They work, found an average of $ 1,482 and a standard deviation of $ 576. Yet significance level (alpha) of 2% we can conclude that the average expenditure on food in the month of March 2020.
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