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timama [110]
3 years ago
5

Helllpppp meee fastttt!!!!!! Plzzzzzzz!

Mathematics
1 answer:
serg [7]3 years ago
8 0

Answer:(A) 6/15 9/25

(B) yes they are proportional cause both there highest factors are 3

Step-by-step explanation: Because both there highest factors are 3


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Suppose that we are testing a coin to see if it is fair, so our hypotheses are: H0: p = 0.5 vs Ha: p ≠ 0.5. In each of (a) and (
aleksley [76]

Answer:

H_0: p = 0.5\\H_a: p \neq 0.5

a. We get 56 heads out of 100 tosses.

We will use one sample proportion test  

x = 56

n = 100

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{56}{100}

\widehat{p}=0.56

Formula of test statistic =\frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}

                                       =\frac{0.56-0.5}{\sqrt{\frac{0.5(1-0.5)}{100}}}

                                       =1.2

refer the z table for p value

p value = 0.8849

a.  We get 560 heads out of 1000 tosses.

We will use one sample proportion test  

x = 560

n = 1000

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{560}{1000}

\widehat{p}=0.56

Formula of test statistic =\frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}

                                       =\frac{0.56-0.5}{\sqrt{\frac{0.5(1-0.5)}{1000}}}

                                       =3.794

refer the z table for p value

p value = .000148

p value of part B is less than Part A because part B have 10 times the number the tosses.

6 0
3 years ago
A bike path is 6 <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B4%7D%20" id="TexFormula1" title=" \frac{3}{4} " alt=" \fr
Alecsey [184]
3/4*6 *3/4
3/4*6*3/4
3/4*6*3/4

5 0
3 years ago
Please help this a big part of my grade I will give brainliest o
olga_2 [115]

Answer: ok what is it

Step-by-step explanation:

8 0
3 years ago
Plz help its math <br> do 1 pick anything
zhenek [66]

Answer:

-3

Step-by-step explanation:

30/(-2)-(-3)(4)

BIDMAS

-15 - (-3)(4)

-15 - -12

-15+12

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7 0
2 years ago
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The circumference of a circle is 28 times3.14. What is the radius
mylen [45]
Hi there, the formula of a circle is C=πr. So, r=C/2π=28/2*π=4.45634, Therefore, the answer is 4.45634
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3 years ago
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