It is known that the population variance equals 484. with a.95 probability, the sample size that needs to be taken to estimate the population mean if the desired margin of error is 10 or less is

Solution: We are given:

Population variance,

Margin of error,

The formula for determining the required sample size is:

Where:

is the critical value at 0.05 significance level

Therefore the required sample size is 19

c: lkllmn.

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the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation: