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2 years ago

6

Determine the sample size required to estimate the mean score on a standardized test within 4 points of the true mean with 98% c

onfidence. Assume that s = 15 based on earlier studies.

1 answer:

Darina [25.2K]2 years ago

3 0

Answer:

67

Step-by-step explanation:

You have to use fractions to show your work and I'm not going to do that but just know that it is the answer.

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Find the length of the third side. If necessary, round to the nearest<br> tenth.

WARRIOR [948]

B^2 = a^2 - c^2
b^2 = 9^2 - 5^2
b^2 = 56
b = 7.5

5 0

2 years ago

Someone please hurry and answer i will mark brainelist!!!!! or how ever you spell it

tigry1 [53]

What is the question?

3 0

3 years ago

From the start of a trail to the bird lookout point is 3 7/8 mile. From the bird lookout point to the end of the trail is anothe

Juli2301 [7.4K]

Answer:

Distance of the trail from the start to the end is $6\frac{17}{24}$ miles

Step-by-step explanation:

Distance from the start of a trail to the bird lookout point= $3\frac{7}{8}$ miles

Distance from the bird lookout point to the end of the trail = $2\frac{5}{6}$ miles

We want to find the difference of the trail from the start to the end, that is, how far is the starting point from the end point.

The distance between the start and end points

$=3\frac{7}{8}+2\frac{5}{6}\\=\frac{31}{8} +\frac{17}{6}$

$=\frac{161}{24} =6\frac{17}{24}$ miles

3 0

3 years ago

What is the Pythagorean Theorem

Vlad [161]

Answer:

see below

Step-by-step explanation:

The Pythagorean theorem is for right triangles. It uses the two legs and the hypotenuse

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

4 0

3 years ago

Someone please help thanks :))))

Sedaia [141]

Answer:

-2

Step-by-step explanation:

We can find the slope by using the slope formula

m = (y2-y1)/(x2-x1)

= (-5 - -7)/ ( -2 - -1)

= ( -5+7) / ( -2 +1)

= 2/-1

= -2

7 0

3 years ago

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