A very honest and conscientious advertising committee wishes to make an accurate ad about the speed of service at "Harley's Hamburger House." They take a random sample of 25 orders for burgers and record the speed of service in order to set up the 95% CI. (table required). Set us the confidence interval but don't complete the calculations. Here are the data: Mean time = 50 sec; SE = 5 seconds.
What will be an ideal response?
Correct Answer:
95% CI: 50 ± 2.064 (5)
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What will be an ideal response?