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3 years ago

Describe the position of all the points on the number line that are

Mathematics

1 answer:

zimovet [89]3 years ago

3 0

A. all number greater than a will be to the RIGHT of a

b. all numbers less than a will be to the LEFT of a

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3 years ago

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If f(x) = 3x - 1 and g(x) = x + 2, find (f- g)(x).

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3 years ago

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2 years ago

What is not an acceptable form of proof

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No reason, or no evidence to support your claim/proof

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3 years ago

Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company claims that the percentage

quester [9]

Answer: a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : $H_0:p=P$

Alternate hypothesis : $H_1:p\neq P$

So, the test statistic would be

$z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252$

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

$P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219$

Hence, a) -0.2252, b) 0.8219

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3 years ago