Hi I have two true or false questions. In general, increasing the confidence level will narrow the confidence interval, and decreasing the confidence level widens the interval?

The upper limit of the 95% confidence interval for the population proportion p, given that n = 300; and f$hat{p}f$ = 0.10 is approximately 0.1339?

Use math slover program and you will find the answer for this questions faster

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

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for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.