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Mathematics, 16.12.2020 19:40 angiejtc0908
A store manager wants to investigate customer spending in his store. He randomly selects 30 customers and records their purchase total. He finds the mean to be $125 and the standard deviation to be $32. Construct and interpret a 95% confidence interval for the true mean purchase total for all customers.
Use this table to determine the appropriate value of t*. Enter the degrees of freedom and the value of t* (exactly as you see it written in the table).
Degrees of freedom =
⇒
t* =
⇒
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A store manager wants to investigate customer spending in his store. He randomly selects 30 customer...
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