A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. He wants to construct the 90%90% confidence interval with a maximum error of 0.190.19 reproductions per hour. Assuming that the mean is 5.55.5 reproductions and the variance is known to be 5.765.76, what is the minimum sample size required for the estimate? Round your answer up to the next integer.
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. He wants to construct the 90%90% confidence interval with a maximum error of 0.190.19 reproductions per hour. Assuming that the mean is 5.55.5 reproductions and the variance is known to be 5.765.76, what is the minimum
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