Exercises 1.A survey in NCR finds the average commute time of employees on one way is 30 minutes. The Makati Chamber of Commerce feels that in their city, it is longer, and they want to publicize this. They randomly select 28 commuters and finds the average is 35 minutes with a standard deviation of 6 minutes. At a = 0.05, are they correct? JO018 "Property of ST

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A: Mean=M=268, Standard deviation=S=15 , Length=X=318

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A: Given that

Q: A surveyfound that women's heights are normally distributed with mean 63.8 in and standard deviation…

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A: Note:-Hey there! As per our policy we can answer only 1 ques at a time. Please make a new request…

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Q: A survey found that women's heights are normally distributed with mean 63.1 in. and standard…

A:

Q: A survey found that women's heights are normally distributed with mean 63.8 in and standard…

A: Refer Standard normal table/Z-table to find the probability of z=6.75 & z=-2.42. Therefore,…

Q: A survey found that women's heights are normally distributed with mean 63.9 in and standard…

A:

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A: Given: μ=45.8 minutesσ=3.6 minutes include only the top 20% of the racers

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Q: A survey found that​ women's heights are normally distributed with mean 63.9 in and standard…

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A: It is given that  Mean, μ = 149.7 Standard deviation, σ = 8.2 Recommended overall GRE score, X = 153

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.