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lisabon 2012 [21]
2 years ago
10

PLEASE HELP!!

Mathematics
1 answer:
pogonyaev2 years ago
4 0

Answer:

Work shown below!

Step-by-step explanation:

\sqrt{-18}=\sqrt{18i^{2} }  =\sqrt{2*9i^{2} }=3i\sqrt{2}

2\sqrt{-16} =2\sqrt{16i^{2} } =4i*2=8i

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Answer:

13:08 Military Time

Step-by-step explanation:

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2 years ago
Which of the following represents a Type I error for the null and alternative hypotheses H0:μ≤$3,200 and Ha:μ>$3,200, where μ
Nuetrik [128]

Answer:

Option a) Type I error would occur if we reject null hypothesis and conclude that the average amount is greater than $3,200 when in fact the average amount is $3,200 or less.        

Step-by-step explanation:

We are given the following information in the question:

H_{0}: \mu \leq \$3,200\\H_A: \mu > \$3,200

where μ is the average amount of money in a savings account for a person aged 30 to 40.

Type I error:

  • Type I error is also known as a “false positive” and is the error of rejecting a null  hypothesis when it is actually true.
  • In other words, this is the error of accepting an  alternative hypothesis when the results can be  attributed by null hypothesis.
  • A type I error occurs during the hypothesis testing process when a null hypothesis is rejected, even though it is correct and should not be rejected.

Thus, in the above hypothesis type  error will occur when we reject the null hypothesis even when it is true.

Option a) Type I error would occur if we reject null hypothesis and conclude that the average amount is greater than $3,200 when in fact the average amount is $3,200 or less.

3 0
3 years ago
Find the slope of a line through the following pair of points:
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3 years ago
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Step-by-step explanation:

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2 years ago
The radius of a cylinder is 7.8*10^-4 m. The height of the cylinder is 3.4*10^-2 m. What is the volume? Write in scientific nota
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Answer:

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume of cylinder = πr^2h

Where

π is a constant whose value is 3.14.

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h represents the height of the cylinder.

From the information given,

The radius of a cylinder is 7.8*10^-4 m.

The height of the cylinder is 3.4*10^-2.

Therefore,

Volume of cylinder =

3.14 × (7.8*10^-4)^2 × 3.4*10^-2

= 3.14 × 60.8*10^-8 × 3.4*10^-2

= 649.52784 × 10^- 10 m^2

3 0
3 years ago
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