Answer:
below
Step-by-step explanation:
p = 2( a + b)
p = 2(24 +16)
p =80 in
p semicircle
=πr
= 3.142 *8
= 25.136
p of figure
p =80 +25.136
p=105.136 in
We will make a proportion:
67 : 33 = 100 : x
67 x = 33*100
67 x= 3300
x= 3300/97= 49.2537
Round to the nearest tenth:
Answer: 49.3%.
The answer is y ≤ 8
put dot/closed circle on 8 then draw an arrow to the left all the way till 3 or pass 3 ←-----------------
Slimplify 2-2/3 to 4/3
1/2*2-6*4/3
slimplify 1/2*2 to 1
1-6*4/3
slimplify 6*4/3 to 24/3
1-24/3
slimplify 24/3 to 8
1-8
slimplify
-7
The observed value of z (test statistic) is greater than 1.96 (the test statistic does fall into the rejection region), so Reject H₀ .
p₁ = the proportion of the non-smoker population who reply "yes"
p₂ = the proportion of the smoker population who reply "yes," then we are interested in testing the null hypothesis
H₀: p₁ = p₂
Alternate hypothesis:
Hₐ: p₁≠p₂
That implies then that the test statistic for testing:
H₀ : p1 = p2
Hₐ : p1 ≠ p2. (Two – tailed)
n1 = 605, y1 = 351
p1 = y1 / n1
= 351/605
≈ 0.58
n2 = 195, y2 = 41.
p2 = y2/n2
= 41 / 195
≈0.21
p = y1 + y2 / n1 + n2
= 351 + 41 / 605 + 195
= 392 / 800
= 0.49
The test statistic is

z =
= 8.988
critical region for α = 0.01
z = 2.576
The observed value of z (test statistic) is greater than 1.96 (the test statistic does fall into the rejection region),
so Reject H₀ .
To learn more about hypothesis testing from the given link
brainly.com/question/4232174
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