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2 years ago

What is the sales tax on a suit priced at $784 if the sales tax is 7%?

Mathematics

1 answer:

ira [324]2 years ago

4 0

Answer:

838.88

Step-by-step explanation:

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A software company decided to conduct a survey on customer satisfaction. Out of 564 customers who participated in the online sur

nikklg [1K]

Answer:

$z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8$

$p_v =2*P(z$

Step-by-step explanation:

Information given

n=564 represent the sample selected

X=51 represent the number of people who rated the overall services as poor

$\hat p=\frac{51}{564}=0.0904$ estimated proportion of people who rated the overall services as poor

$p_o=0.1$ is the value to compare

z would represent the statistic

Hypothsis to analyze

We want to analyze if the proportion of customers who would rate the overall car rental services as poor is 0.1, so then the system of hypothesis are:

Null hypothesis: $p=0.1$

Alternative hypothesis: $p \neq 0.1$

The statistic for a one z test for a proportion is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing the info given we got:

$z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8$

And the p value since we have a bilateral test is given b:

$p_v =2*P(z$

3 0

3 years ago

He statement: 4 – 3+5 = –6 +8+4. This is a mathemati

kotegsom [21]

Answer:

nope

Step-by-step explanation:

7 0

3 years ago

Solve the equation | z - 12 = 9

MariettaO [177]

Answer:

Step-by-step explanation:

21-12=9

4 0

2 years ago

Read 2 more answers

Solve the equation. x² =96 A 4/6 B 16/6 C 9 D 9,-9

alexgriva [62]

Answer:

x = ± 4 $\sqrt{6}$

Step-by-step explanation:

Given

x² = 96 ( take the square root of both sides )

x = ± $\sqrt{96}$ = ± $\sqrt{16(6)}$ = $\sqrt{16}$ × $\sqrt{6}$ = ± 4 $\sqrt{6}$

3 0

3 years ago

What is the value of m? (m is a whole number)

yuradex [85]

m is equal to 3. Need I say more?

6 0

3 years ago