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PilotLPTM [1.2K]
3 years ago
15

Determine which of these quantities DOES combine to make 0. A) Buying 24 pencils and giving 22 pencils away B) Losing $20.00 and

then finding $25.00 in your coat pocket C) Gaining 12 yards on one play and then losing 8 yards on the next play D) Picking up 12 kids for a party and then dropping 12 kids off at the pool
Mathematics
1 answer:
EleoNora [17]3 years ago
6 0

D) Picking up 12 kids for a party and then dropping 12 kids off at the pool

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Suppose that in a random selection of 100 colored​ candies, 24​% of them are blue. The candy company claims that the percentage
LuckyWell [14K]

Answer:

We conclude that the percentage of blue candies is equal to 23​% at 0.01 significance level.

Step-by-step explanation:

We are given that in a random selection of 100 colored​ candies, 24​% of them are blue.

The candy company claims that the percentage of blue candies is equal to 23​%.

<u><em>Let p = percentage of blue candies.</em></u>

So, Null Hypothesis, H_0 : p = 23%      {means that the percentage of blue candies is equal to 23​%}

Alternate Hypothesis, H_A : p \neq 23%      {means that the percentage of blue candies is different from 23​%}

The test statistics that would be used here <u>One-sample z proportion test statistics</u>;

                              T.S. =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n}}  }  ~ N(0,1)

where, \hat p = sample proportion of blue colored candies = 24%

           n = sample of colored​ candies = 100

So, <em><u>test statistics</u></em>  =  \frac{0.24-0.23}{\sqrt{\frac{0.24(1-0.24)}{100}}  }

                               =  0.234

The value of z test statistics is 0.234.

<u>Now, at 0.01 significance level the z table gives critical values of -2.5758 and 2.5758 for two-tailed test.</u>

<em>Since our test statistics lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which </em><u><em>we fail to reject our null hypothesis.</em></u>

<em />

Therefore, we conclude that the percentage of blue candies is equal to 23​%.

6 0
3 years ago
Please help!?<br><br> Evaluate the expression 5V - 6w when v= 4 and w= 2.
Rudik [331]

Answer:

8

Step-by-step explanation:

5V-6W

V=4.    W=2.  

5(4)-6(2)

20-6(2)

20-12=

8

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3 years ago
Quizz<br><br>the multiple word order of "qenl" is...​
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Answer:

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5 0
3 years ago
Example: Find the circumference of the circle with a radius of 5 inches. Solution: Step 1: Write down the formula: IC = 2tr Step
GREYUIT [131]

Answer:

1. The circumference of any circle equals two times its radius multiplied by pi (π, approximately 3.14). We can also say it equals pi times its diameter.

Thank you

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3 years ago
(2x+9y-4) - (+5y+2)
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2x+9y-4-5y-2       2x+4y-6
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