A soccer ball manufacturer wants to estimate the mean circumference of soccer balls. The sample mean is inches from a sample size . Find the % confidence interval. Assume a population standard deviation of inch.

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Ответ:

blanca04fp

01.10.2021

Mathematics

Step-by-step explanation:

$4\cdot \:5-10-2\left(1-2\right)+5$

$\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}$

$=4\cdot \:5-10-2\left(-1\right)+5$

$=20-10-2\left(-1\right)+5$

$=20-10-\left(-2\right)+5$

20-10=10

$=10-\left(-2\right)+5$

$-\left(-2\right)=+2$

=10+2+5

10+2=12

=12+5

12+5=17

=17

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