Question Help v A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 147.1 seconds. Assuming drive-through times are normally distributed with a standard deviation of 34 seconds, complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 95 seconds? The probability that a randomly selected car will get through the restaurant's drive-through in less than 95 seconds is 0.0630 (Round to four decimal places as needed.) (b) What is the probability that a randomly selected car will spend more than 205 seconds in the restaurant's drive-through? The probability that a randomly selected car will spend more than 205 seconds in the restaurant's drive-through is 0.0442. (Round to four decimal places as needed.) (c) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through? The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is (Round to four decimal places as needed.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 147.1 seconds. Assuming drive-through times are normally distributed with a
standard deviation of 34 seconds, complete parts (a) through (d) below.
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
(a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 95 seconds?
The probability that a randomly selected car will get through the restaurant's drive-through in less than 95 seconds is 0.0630
(Round to four decimal places as needed.)
(b) What is the probability that a randomly selected car will spend more than 205 seconds in the restaurant's drive-through?
The probability that a randomly selected car will spend more than 205 seconds in the restaurant's drive-through is 0.0442.
(Round to four decimal places as needed.)
(c) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through?
The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is
(Round to four decimal places as needed.)
Enter your answer in the answer box and then click Check Answer.
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APR
23
W
吕口
F3
888
F4
600
6700
VIA
F5
F6
F7
F8
F9
F10
F11
F12
F2
23
$4
&
2
3
4
6
8
de
Q
E
R
Y
U
S
D
F
G
H
K
V
Transcribed Image Text:Question Help ▼ A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 147.1 seconds. Assuming drive-through times are normally distributed with a standard deviation of 34 seconds, complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 95 seconds? The probability that a randomly selected car will get through the restaurant's drive-through in less than 95 seconds is 0.0630 (Round to four decimal places as needed.) (b) What is the probability that a randomly selected car will spend more than 205 seconds in the restaurant's drive-through? The probability that a randomly selected car will spend more than 205 seconds in the restaurant's drive-through is 0.0442. (Round to four decimal places as needed.) (c) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through? The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 1 part remaining Clear All Check Answer APR 23 W 吕口 F3 888 F4 600 6700 VIA F5 F6 F7 F8 F9 F10 F11 F12 F2 23 $4 & 2 3 4 6 8 de Q E R Y U S D F G H K V
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