Everyone needs to cut costs, even those planning a wedding, according to the July 8, 2009,...

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Everyone needs to cut costs, even those planning a wedding, according to the July 8, 2009,...

Everyone needs to cut costs, even those planning a wedding, according to the July 8, 2009, USA

Today article “Today’s bride is ‘definitely the opposite of bridezilla.” The article quoted the average wedding gown cost, based on information from ‘The Knot Real Wedding Survey of 2008’, as $1032. Assume that the cost of wedding gowns is normally distributed with a standard deviation of $550.

a) What is the probability that a bride-to-be, randomly selected from the population, spent over $1200?

b) What is the probability that the mean cost of wedding gowns for a sample of 20 randomly selected brides-to-be is over $800?

math Statistics-And-Probability

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