# Question: The impact of a television commercial measured in terms of

The impact of a television commercial, measured in terms of excess sales volume over a given period, is believed to be approximately normally distributed with mean 50,000 and variance 9,000,000. Find 0.99 probability bounds on the volume of excess sales that would result from a given airing of the commercial.

**View Solution:**## Answer to relevant Questions

A travel agency believes that the number of people who sign up for tours to Hawaii during the Christmas-New Year's holiday season is an approximately normally distributed random variable with mean 2,348 and standard ...In quality-control projects, engineers use charts where item values are plotted and compared with 3-standard-deviation bounds above and below the mean for the process. When items are found to fall outside the bounds, they ...Thirty-year fixed mortgage rates in April 2007 seemed normally distributed with mean 6.17%. The standard deviation is believed to be 0.25%. Find a bound such that the probability that the actual rate obtained will be this ...Suppose you need to sample the concentration of a chemical in a production process that goes on continuously 24 hours per day, 7 days per week. You need to generate a random sample of six observations of the process over a ...According to a recent article in Worth, the average price of a house on Marco Island, Florida, is $2.6 million. Assume that the standard deviation of the prices is $400,000. A random sample of 75 houses is taken and the ...Post your question