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forsale [732]
2 years ago
14

Need help with geometry

Mathematics
1 answer:
chubhunter [2.5K]2 years ago
3 0

Answer:

20 degrees, 50 degrees, 80 degrees, 75 degrees, 60 degrees

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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
What is the value of this expression 6 • [(32 - 8) divided by 4 + 2]
zalisa [80]

Answer:

48 is your answer.

Step-by-step explanation:

What you want to do is follow PEMDAS.

Parenthesis are first. You will subtract 32 and 8 to get 24.

6 x [(24)/4+2] You will then divide 24 and 4 to get 6.

6 x[6+2] you will then add 6+2 to get 8.

6 x 8 = 48 is your answer.

7 0
3 years ago
A market sells bananas for $0.69 per pound. Which expression represents the cost, in dollars, of p pounds of bananas?
worty [1.4K]

Answer:

StartFraction p over 0.69 EndFraction

69p

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How many triangles can be constructed with angles measuring 110°, 50°, and 20°?
lutik1710 [3]
The answer would be B) more than one hope this helped you!
8 0
3 years ago
Read 2 more answers
From this data, how many male, female, adult, and baby mountain goats do you predict are in the park
ICE Princess25 [194]

Answer:

See below ~

Step-by-step explanation:

<u>Part A</u>

  • Male elk = 105/450 = 7/30
  • Female elk = 120/450 = 4/15
  • Adult elk = 173/450
  • Baby elk = 52/450 = 26/225

<u>Part B</u>

  • Male elk = 7/30 = 0.233 = 23.3%
  • Female elk = 4/15 = 0.267 = 26.7%
  • Adult elk = 173/450 = 0.384 = 38.4%
  • Baby elk = 26/225 = 0.116 = 11.6%
7 0
2 years ago
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