In a random sample of 100 customers in Washington, the company found that the average salewas $7.87 with a standard deviation of $1.95. There was a clear right skew to the sample data.Create and interpret a 95% confidence interval for the true average amount spent bycustomers at Sunquid in the state of Washington. Make sure to address the conditionsfor inference.“So you’re telling me that all of our customers are spending between those two amountseach time they come in? That’s fantastic!” one of the executives exclaims. There are twomajor flaws to the executive’s statement. Identify the two flaws and elaborate to theexecutive why those two things are not true.

Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…

Answered: n a random sample of 100 customers in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a random sample of 100 customers in Washington, the company found that the average sale
was $7.87 with a standard deviation of $1.95. There was a clear right skew to the sample data.

Create and interpret a 95% confidence interval for the true average amount spent by
customers at Sunquid in the state of Washington. Make sure to address the conditions
for inference.
“So you’re telling me that all of our customers are spending between those two amounts
each time they come in? That’s fantastic!” one of the executives exclaims. There are two
major flaws to the executive’s statement. Identify the two flaws and elaborate to the
executive why those two things are not true.

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