One year consumers spent an average of $23 on a meal at a resturant. Assume that...

One year consumers spent an average of $23 on a meal at a resturant. Assume that the amount spent on a resturant meal is normally distributed and that the standard deviation is $3.

Complete parts (a) through (c) below.

a. What is the probability that a randomly selected person spent more than $25? round to four decimal places

b. What is the probability that a randomly selected person spent between $9 and $21? round to four decimal places

c. Between what two values will the middle 95% of the amounts of cash spent fall? round to the nearest cent

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orchestra answered 1 year ago

One year consumers spent an average of $23 on a meal at a restaurant. Assume that...

One year consumers spent an average of $23 on a meal at a restaurant. Assume that the amount spent on a restaurant meal is normally distributed and that the standard deviation is $6. Complete parts (a) through (c) below. a. What is the probability that a randomly selected person spent more than $28?=0.2033 P(X>$28)=0.2033 b. What is the probability that a randomly selected person spent between $9 and $21?=0.3608 P($9<X<$21)=0.3608 c. Between what two values will the middle 95% of...

One year consumers spent an average of $23 on a meal at a restaurant. Assume that...

One year consumers spent an average of $23 on a meal at a restaurant. Assume that the amount spent on a restaurant meal is normally distributed and that the standard deviation is $6. Complete parts (a) through (c) below. a. What is the probability that a randomly selected person spent more than $28?=0.2033 P(X>$28)=0.2033 b. What is the probability that a randomly selected person spent between $9 and $21?=0.3608 P($9<X<$21)=0.3608 c. Between what two values will the middle 95% of...

One year consumers spent an average of $22 on a meal at a restaurant. Assume that...

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One year consumers spent an average of $23 on a meal at a resturant. Assume that...

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