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2 years ago

9

Suppose you want to estimate the population mean with 95% confidence with a margin of error of 2. If the estimate of the populat

ion standard deviation is 8, what sample size is required

1 answer:

Sever21 [200]2 years ago

5 0

The sample size required is 62.

Here,

From the formula,

n=((1.96*8)/2)^2=62

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Determine whether the data described below are qualitative or quantitative and explain why. The types of movies (drama comma com

Lana71 [14]

Answer:

C. The data are qualitative because they don't measure or count anything.

Step-by-step explanation:

Quantitative data is about numbers or counts. For example, the number of children of a couple is an example of quantitative data.

Qualitative data is about characteristics, when they don't count or measure anything. For example, if my favorite kind of movie is comedy, for example, it is an example of qualitative data. There are no counts or measurements.

So the correct answer is:

C. The data are qualitative because they don't measure or count anything.

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3 years ago

Solve for x : ax+v=3(x-c)

never [62]

Answer:

$x=\frac{3c+v}{a-3}$

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

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4 years ago

Read 2 more answers

Write the coordinates for the given dilation

Olegator [25]

<u>Answer:</u>

D $_o$ of Y = (-3/2, -1)

<u>Step-by-step explanation:</u>

We are given three points on the graph:

X (4, 0)

Y (3, 2)

Z (2, 2)

and the scale factor of dilation which is $-\frac{1}{2}$ .

Given that, we are to find the coordinates of Y after dilation. To find that, we will multiply the coordinates of the point Y with the scale factor.

Y = $(-\frac{1}{2}$ × $3$ , (-\frac{1}{2}[/tex] × $2)$

Y = $(-\frac{3}{2} , -1)$

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3 years ago

The vertices of triangle DEF are D(0,0), E(0,7), and F(6,3). find the coordiantes of the orthocenter of triangle DEF

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3 years ago

I need help on the question up here

vovangra [49]

2x + 4a = 10

2x = 10 - 4a

x = 5 - 2a

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3 years ago