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2 years ago

Four equals the difference of eight and a number and the result is divided by four

Mathematics

1 answer:

Lemur [1.5K]2 years ago

3 0

Answer:

(8-n=4)/4 click brainliest please and click thanks

Step-by-step explanation:

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Suppose that at a state college, a random sample of 41 students is drawn, and each of the 41 students in the sample is asked to

ra1l [238]

Answer:

The confidence interval for 90% confidence would be narrower than the 95% confidence

Step-by-step explanation:

From the question we are told that

The sample size is n = 41

For a 95% confidence the level of significance is $\alpha = [100 - 95]\% = 0.05$ and

the critical value of $\frac{\alpha }{2}$ is $Z_{\frac{\alpha }{2} } =Z_{\frac{0.05 }{2} }= 1.96$

For a 90% confidence the level of significance is $\alpha = [100 - 90]\% = 0.10$ and

the critical value of $\frac{\alpha }{2}$ is $Z_{\frac{\alpha }{2} } =Z_{\frac{0.10 }{2} }= 1.645$

So we see with decreasing confidence level the critical value decrease

Now the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

given that other values are constant and only $Z_{\frac{\alpha }{2} }$ is varying we have that

$E\ \ \alpha \ \ Z_{\frac{\alpha }{2} }$

Hence for reducing confidence level the margin of error will be reducing

The confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

Now looking at the above formula and information that we have deduced so far we can infer that as the confidence level reduces , the critical value reduces, the margin of error reduces and the confidence interval becomes narrower

3 0

2 years ago

Whats the commisson of 660 in 10%

Sholpan [36]

Answer:

0,10×660=66

660-66= 594

6 0

3 years ago

Jalisas mother bought 24 cookies at the grocery store. There are 6 people in jalisas family. After dinner they ate some of the c

viva [34]

The family ate 7 eights of the cookies.

5 0

3 years ago

Help me please ......

Alja [10]

$2\frac{3}{4}*2=\frac{2*4+3}{4}*2=\frac{11}{4}*2=\frac{22}{4}= 5\frac{2}{4}=5\frac{1}{2}$

7 0

3 years ago

The graph of the function is shown <br><br> which function is represented by the graph?

natta225 [31]

Answer:

Y intersect and X intersect

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2 years ago