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Consumers spent an average of $15 on a meal at restaurant. Assume that the amount spent on a restaurant meal is normally distributed and that the standard deviation is $2.
a. What is the probability that a randomly selected person spent more than $17?
b. What is the probability that a randomly selected person spent between $12 and $14?
c. What is the upper bound for the lowest 15% of the amounts spend?
d. Between what two values will the middle 80% of the amounts spent fall?
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Test the significant difference between Chi-square for attributes
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a local outdoor equipment store is being sold. the buyers are trying to estimate the percentage of items that are
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