Javon is in a 28% tax bracket for his federal income tax. If the amount of money that he paid
for federal income tax was $23,520, what was
his taxable income? (See Example 3.)

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Ответ:

Mynameismath

23.06.2021

Mathematics

Option D) $13.755 \pm 1.245$

Step-by-step explanation:

The table is attached in the question.

We are given the following in the question:

Population mean, μ = 15 hours per week

Sample mean = 13.755 hours per week

Degree of freedom = 25

Standard error = 0.707

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 15\text{ hours per week}\\H_A: \mu \neq 15\text{ hours per week}$

95% confidence interval:

$\bar{x} \pm t_{critical}\text{Standard error}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 25 and}~\alpha_{0.05} = \pm 1.761$

$13.755 \pm 1.761(0.707) = 13.755 \pm 1.245 = (1.9052 ,4.3952)$

Thus, the correct answer is

Option D) $13.755 \pm 1.245$

A new article reported that college students who have part-time jobs work an average of 15 hour per

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Javon is in a 28% tax bracket for his federal income tax. If the amount of money that he paid for federal income tax was $23,520, what was his taxable income? (See Example 3.)