1. Researchers are interested in knowing the population proportion of people in Los Angeles County who have Covid-19 antibodies. A random sample of 8023 Los Angeles County residents found that 1430 have Covid-19 antibodies. a) Determine the minimum sample size needed to estimate, with 99% confidence, the population proportion of Los Angeles County residents who have Covid-19 antibodies if the estimate must be accurate within 1% of the population proportion.

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Q: how do I plug in the numbers? That is the part I am stuggling with.

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Q: Is there a handwritten one? I can't read this formula.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.