The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a standard deviation of 7 ounces. 35 randomly selected people are surveyed. Round all answers to 4 decimal places where possible.What is the probability that one randomly selected person drinks between 16.9 and 17.3 ounces of coffee per day?For the 35 people, find the probability that the average coffee consumption is between 16.9 and 17.3 ounces of coffee per day.Can you show me how to do this on a ti84

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Asked Dec 2, 2019
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The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a standard deviation of 7 ounces. 35 randomly selected people are surveyed. Round all answers to 4 decimal places where possible.

What is the probability that one randomly selected person drinks between 16.9 and 17.3 ounces of coffee per day?

For the 35 people, find the probability that the average coffee consumption is between 16.9 and 17.3 ounces of coffee per day.

Can you show me how to do this on a ti84

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Expert Answer

Step 1

The probability that one randomly selected person drinks between 16.9 and 17.3 ounces of coffee per day is 0.02279, which is obtained by using below steps

  • Press 2nd VARS
  • Se...
TEXAS INSTRUMENTS
TI-83 Plus
normalcdf (16.9,1
7.3,17,7)
0227913715
saTPLO SET PFORMAT CALC
WNDOR
200N
TRACE
Ya
GRAPH
QUIT
INS
MODE
2nd
DEL
A-LOCK
LINK
uST
X18n
ALPHA
STAT
ANGAE DRAW
TEST
DISTR
MATH
PRGM
APPS
VARS
CLFAR
cos4 TAN
VATR
x4
SIN
TAN
cOs
10
LOG
X
LN
L3
LT
RCL
MEM
STO
ANS
OFF
ON
ENTER
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TEXAS INSTRUMENTS TI-83 Plus normalcdf (16.9,1 7.3,17,7) 0227913715 saTPLO SET PFORMAT CALC WNDOR 200N TRACE Ya GRAPH QUIT INS MODE 2nd DEL A-LOCK LINK uST X18n ALPHA STAT ANGAE DRAW TEST DISTR MATH PRGM APPS VARS CLFAR cos4 TAN VATR x4 SIN TAN cOs 10 LOG X LN L3 LT RCL MEM STO ANS OFF ON ENTER

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