3 years ago

I report if u guess. A 98% confidence interval for a proportion is found to be (0.32, 0.38). What is the sample proportion?

Mathematics

1 answer:

JulsSmile [24]3 years ago

4 0

Answer:

Step-by-step explanation:

Sample proportional is right at the centre of the interval

p = (0.32+0 38)/2

0.7/2

0.35

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%7Bx%7D%205%7D" id="TexFormula1" title="\frac{1}{\sqrt{x} 5}" alt="\fr

murzikaleks [220]

Answer:

$\frac{ \sqrt{5x} }{5x}$

Step-by-step explanation:

$\frac{1}{ \sqrt{x5} }$

$= \frac{1}{ \sqrt{5x} }$

$= \frac{1}{ \sqrt{5x} } \times \frac{ \sqrt{5x} }{ \sqrt{5x} }$

$= \frac{1 \sqrt{5x} }{ \sqrt{5x \sqrt{5x} } }$

$= \frac{\sqrt{5x} }{ \sqrt{5x \sqrt{5x} } }$

$= \frac{ \sqrt{5x} }{5x}$

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3 years ago

Can someone tell me the answer to this question

pshichka [43]

A can be the correct option
hoping it is right

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3 years ago

What is the formula for area of a rectangle?

Vedmedyk [2.9K]

Answer:

length × width=Area

I hope this helps

3 0

3 years ago

Three-fourths was subtracted from a number, and then 5/4 was added to the result. The sum was -7.

Rasek [7]

Hi there!

Let's start by replacing "a number" by the letter "x" so that we can do an equation and isolate "x" to find your answer :

(x - $\frac{3}{4}$ ) + $\frac{5}{4}$ = -7

subtract $\frac{5}{4}$ on each side of the equation

x - $\frac{3}{4}$ = -8.25

add $\frac{3}{4}$ on each side of the equation

x = -7.5

-7.5 - 3/4 = -8.25

-8.25 + 5/4 = <u>-7</u>

So your answer is : Three-fourths was subtracted from -7.5, and then 5/4 was added to the result. The sum was -7.

There you go! I really hope this helped, if there's anything just let me know! :)

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3 years ago

A football coach set a goal of keeping opposing teams to an average of less than 200 yard. of total offense each game. After thr

faust18 [17]

(701+y)/(3+1)<200

(701+y)/4<200

701+y<800

y<99

So the most yards they can allow in the next game is 98 yards

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3 years ago