Explore BrainMass

Explore BrainMass

    Finding probability of household purchases of ground coffee

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    During 2001, 61.3% of US households purchased ground coffee.These households spent an average of $36.16 on ground coffee during the year. Consider the annual ground coffee expenditures for households purchasing ground coffee, assuming that these expenditures are approximately distributed as a normal random variable with a mean of $36.16 and a standard deviation of $10.00

    a. Find the probability that the household spent less than $25.00
    b. Find the probability that a household spent more than $50.00
    c. Find the probability that a household spent more than $75.00
    d. What proportion of the households spent between $30 and $40
    e. 99% of the households spent less than what amount?
    f. 80% of the households spent more than what amount?
    g. Do you think that the assumption that the distribution of these expenditures is approximated by a normal distribution is valid. Explain.

    © BrainMass Inc. brainmass.com June 3, 2020, 9:29 pm ad1c9bdddf
    https://brainmass.com/statistics/probability/probability-184389

    Solution Summary

    The solution examines the probability of different amounts of spending in the United States on household ground coffee.

    $2.19

    ADVERTISEMENT