The highway fuel economy of a 2016 Lexas RX 350 FWD 6 cylinder351 automatic 5-speed using a normally distrībuted random variablể with a mean of u 25,25 mpg and a standard deviation of g 200mpg hium fuel is (a) What is the standard enor of X answer to 4 decimal places the mean from a tandom sample of 9 filUps by one driver? (Raund your Standard error ef X (b) Within what interval would you expect the answers to 4 decimal places.) all with 95 percent probability? (Round your The interval is from to

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The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.51 automatic 5-speed using
a normally distributed random variablte with a mean of u 25,25 mpg and a standard deviation of g=200 mpg
nium fuel is
(a) What is the standard eror of X the mean from a tandom sample of 9 fill-ups by one driver(Raund your
answer to 4 decimal places
Standard error of X
(b) Within what interval would you expect the sample mean to fall with 95 percent probability? (Round your
answers to 4 decimel places.)
The interval is from
to
Transcribed Image Text:The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.51 automatic 5-speed using a normally distributed random variablte with a mean of u 25,25 mpg and a standard deviation of g=200 mpg nium fuel is (a) What is the standard eror of X the mean from a tandom sample of 9 fill-ups by one driver(Raund your answer to 4 decimal places Standard error of X (b) Within what interval would you expect the sample mean to fall with 95 percent probability? (Round your answers to 4 decimel places.) The interval is from to
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