Question
We want to conduct a hypothesis of the claim. That the population mean daily profit of a convenience store is more than 480 dollars. So,
We want to conduct a hypothesis of the claim. That the population mean daily profit of a convenience store is more than 480 dollars. So, we record the daily profit for a sample of days.
The sample has a mean of 489 dollars and a standard deviation of 80 dollars.
a). z=
t=
It is unclear which test statistic to use
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Intro Stats
Authors: Richard D. De Veaux, Paul F. Velleman, David E. Bock
3rd edition
321533283, 321533289, 9780321463708, 9780321503848, 9780321503800, 9780321499431, 9780321499417, 978-0321500458
