A Food Marketing Institute found that 3 0 % of households spend more than $ 1 2 5 a week on groce

Описание к видео A Food Marketing Institute found that 3 0 % of households spend more than $ 1 2 5 a week on groce

A Food Marketing Institute found that 3 0 % of households spend more than $ 1 2 5 a week on groceries. Assume the population proportion is 0 . 3 and a simple random sample of 1 5 1 households is selected from the population. What is the probability that the sample proportion of households spending more than $ 1 2 5 a week i In an election, suppose that 6 0 % of voters support a new tax on fast food. If we poll 1 9 6 of these voters at random, the probability distribution for the proportion of the polled voters that support a new tax on fast food can be modeled by the normal distibution pictured below. Complete the boxes accurate to two decimal places.s less than 0 . 3 1 ? There is a ◻ probability

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