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According to AARP, in 2008, 49% of all annual expenditure on restaurant food was by Americans...

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Statistics

  1. According to AARP, in 2008, 49% of all annual expenditure onrestaurant food was by Americans age 50+. In fact AARP claims theaverage annual expenditure for Americans age 50+ on restaurant foodin 2008 was $1960. Suppose a 2015 study randomly sampled 42Americans age 50+ and found an average annual expenditure onrestaurant food of $2145 with a standard deviation of $600. Isthere reason to believe that the average annual expenditure forAmericans age 50+ on restaurant food has increased since 2008 atα=.025?

    For the hypothesis stated above, what is the decision?

    a.

    Reject H0 because the test statistic is to the rightof the positive critical value

    b.

    Fail to reject H0 because the test statistic is tothe right of the positive critical value

    c.

    Fail to reject H0 because P-value > α

    d.

    None of the answers is correct

    e.

    Reject H0 because P-value > α

Answer & Explanation Solved by verified expert
4.1 Ratings (483 Votes)
Step 1Ho Ha Null hypothesis states that the average annual expenditure foramericans age 50 on resturant food is 1960Step 2n 42sample    See Answer
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