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* =
⇒
Answers: 1
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Mathematics, 22.06.2019 01:10, onlymyworld27
To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%
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The focus of a parabola is (-4,-5) and its directrix is y=-1 find the equation
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