Lemons tastes sour to some people. this sourness is inherited through the tas2r38 gene. about 65% of the population has this gene. you want to estimate the proportion of americans who have this gene. how large a sample must you test, with a 2% margin of error and 99% confidence, to estimate the proportion of people who carry the tas2r388 gene?

We are given:

Margin of error

Confidence level = 0.99

We need to find the sample size to estimate the proportion of people who carry the TAS2R388 gene.

The formula for finding the sample size is:

Where:

is the critical value at 0.01 significance level.

Therefore, the required sample size is:

Therefore, the required sample size is 3774

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step-by-step explanation:

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n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9