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3 years ago

The answer is B. 12

Mathematics

2 answers:

KengaRu [80]3 years ago

6 0

Answer:

Step-by-step explanation:

frosja888 [35]3 years ago

6 0

Answer:

Good for u

Step-by-step explanation:

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Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final c

Black_prince [1.1K]

Answer:

The test statistic value Z = 4.64 > 1.96 at 0.05 level of significance

Null hypothesis is rejected

Alternative hypothesis is accepted

Test the claim that the proportion of all children in the town who suffer not from asthma is 11%

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 167

Given data In a sample of 167 children selected randomly from one town, it is found that 37 of them suffer from asthma.

Sample proportion

$p^{-} = \frac{x}{n} = \frac{37}{167} = 0.2215$

Given Population proportion 'P' = 11% = 0.11

Step(ii) :-

Null Hypothesis : H₀ : p = 11

Alternative Hypothesis H₁: p≠11

Test statistic

$Z = \frac{p^{-} -P }{\sqrt{\frac{P Q}{n} } }$

$Z = \frac{0.2215 -0.11 }{\sqrt{\frac{0.11 X 0.89}{167} } }$

Z = 4.64

step(iii)

Critical value Z = 1.96

The calculated value Z = 4.64 > 1.96 at 0.05 level of significance

Null hypothesis is rejected

Alternative hypothesis is accepted

Conclusion:-

Test the claim that the proportion of all children in the town who suffer not from asthma is 11%

4 0

3 years ago

Double the sum of x and 5

jolli1 [7]

Answer:

2(x+5) = 2x+10

Step-by-step explanation:

2(x+5)

= 2*x + 2*5

= 2x+10

6 0

3 years ago

Please help will give brainliest! Write a linear inequality that represents the graph

muminat

Y is greater than or equal to five

4 0

3 years ago

5. Lauren has $50 to spend at the Strawberry Festival. She spends $ 10 on admission and $12 on strawberry shortcake. She wants t

olga55 [171]

For this case we have that Lauren's initial amount of money was $ 50, if he spends $10 and $12 on admission and strawberry pie respectively we have:

$50 - ($10 + $12) = $50- $22 = $28

That is, she has $ 28 left

n: Let the variable that represents the amount of games Lauren can play.

Then, it must be fulfilled that:

$0.75n \leq28\\n \leq \frac {28} {0.75}\\n \leq37.33$

Thus, Lauren can play 37 times the game (at most)

ANswer:

$n \leq37.33$

Thus, Lauren can play 37 times the game (at most)

4 0

3 years ago

How do you finish this graph?

KengaRu [80]

The slope is $m=\dfrac{\Delta y}{\Delta x}$

We have slope m = 3.

$m=3=\dfrac{3}{1}$

3 > 0 - up 3 units

1 > 0 - right 1 unit

Answer in attachment.

8 0

3 years ago