Mathematics: What does x equal to?

What does x equal to? - id8078540, carcon2019

vaehcollier

04.02.2022

27.3

Step-by-step explanation:

x = (36.4 x (49 - 28))/21 = 27.3

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googoomylizard

24.01.2023

Point estimate = 0.25

Step-by-step explanation:

Complete question

Calculate the point estimate

Solution

Let A represents the number of adult males who smoke cigarettes

Calculation of 95% confidence interval for proportion of adult males who smoke cigarettes

$p-z_\alpha \frac{p(1-p)}{n}$ , $p+z_\alpha \frac{p(1-p)}{n}$

$p-z_\alpha \frac{p(1-p)}{n} = 0.22\\p+z_\alpha \frac{p(1-p)}{n} = 0.28$

Point estimate

Adding the above given equations we get -

2 * p = 0.50

p = 0.25

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