3 years ago

4.185 divided by 0.93

1 answer:

Lunna [17]3 years ago

4 0

In think the answer is 4.5

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erik [133]

15 divided by 2 is 7.5

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Sliva [168]

16 feet is the area

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4 years ago

bogdanovich [222]

Answer:

The 95% confidence interval is $(150\pm 8.8)$ .

Step-by-step explanation:

The information provided is:

$\bar x=150\\\sigma = 20\\n=20$

The critical value for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

Compute the margin of error as follows:

$MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

$=1.96\times\frac{20}{\sqrt{20}}\\\\=1.96\times 4.47214\\\\=8.7653944\\\\\approx 8.8$

Then the 95% confidence interval is:

$CI=\bar x\pm MOE$

$=150\pm 8.8$

Thus, the 95% confidence interval is $(150\pm 8.8)$ .

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Ber [7]

29 = 13 + 4x
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x = 4

The number is 4

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4 years ago

mina [271]

- 4 -(12)Step-by-step explanation:

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