Toby wants to know the average price of new cars at a particular dealearship. He randomly selects a sample of 37 cars and finds that the average price to be $23400$23400 with a standard deviation of $880$880. What is the 90% confidence interval for the mean price of cars at this particular dealership?a.) Which distribution table will be used to find the critical value and why? Z-table because the population standard deviation is known t-table because the population standard deviation is unknown t-table because the population standard deviation is known Z-table because the population standard deviation is unknown b.) With 90% confidence, we can say the true population mean price of cars at this dealership is between $ and $ . Round to the nearest dollar

Toby wants to know the average price of new cars at a particular dealearship. He randomly selects a sample of 37 cars and finds that the average price to be $23400$23400 with a standard deviation...

Toby wants to know the average price of new cars at a particular dealearship. He randomly selects a sample of 37 cars and finds that the average price to be $23400$23400 with a standard deviation of $880$880. What is the 90% confidence interval for the mean price of cars at this particular dealership?

a.) Which distribution table will be used to find the critical value and why?

Z-table because the population standard deviation is known

t-table because the population standard deviation is unknown

t-table because the population standard deviation is known

Z-table because the population standard deviation is unknown

b.) With 90% confidence, we can say the true population mean price of cars at this dealership is between $ and $ .

Round to the nearest dollar

Jun 08, 2022

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Toby wants to know the average price of new cars at a particular dealearship. He randomly selects a sample of 37 cars and finds that the average price to be $23400$23400 with a standard deviation...

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