Mathematics, 05.03.2021 07:50 Jtblack2720
One year consumers spent an average of $22 on a meal at a resturant Assume that the amount spent on a resturant 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 $25?
P(X> 525)=(Round to four decimal places as needed)
b. What is the probability that a randomly selected person spent between $8 and $19?
P(S8
c. Between what two values will the middle 95% of the amounts of cash spent fall?
The middle 95% of the amounts of cash spent will fall between X=$and X = 5
(Round to the nearest cent as needed.)
Answers: 1
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Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.
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One year consumers spent an average of $22 on a meal at a resturant Assume that the amount spent on...
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