According to a research firm, in U.S., the mean amount spent by a family of four on food per month is $500 with a standard deviation of $75. Assuming that the food costs are normally distributed, what is the probability that a randomly selected family of four spends less than $480 per month? (Round your answer to 4 decimal places.)
Answer to relevant QuestionsThe mean amount spent by a family of four on food per month in U.S. is unknown, but we assume that the distribution of the food costs is normal. A research firm selected 100 families and found that the mean amount is $500 ...A 750-1,000 original word response with APA format, In-text citations, references (A minimum of two scholarly sources and two internet sources) to the following (Turnitin used by school): Describe the sociological forces ...The game of blackjack (sometimes called “21”) is a popular casino game. The goal is to have a hand with a value of 21 or as close to 21 as possible without exceeding 21. The player and the dealer are each dealt 2 cards ...A coin that is balanced should come up heads half the time in the long run. A coin is tossed 4040 times and gives 2085 heads. Is the coin biased? Use Alpha = .05. (State the Hypothesis Scenario, calculate the test statistics ...Mergers and slow periods in the economy often result in layoffs at many firms. Many employees count on two or three months of severance pay to carry them over to the next job. However, job searches can sometimes take longer ...
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