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2 years ago

Help me y’all! Need to turn this in tonight

Mathematics

1 answer:

melomori [17]2 years ago

8 0

Answer: y = -1

Explanation: the y axis is the vertical line, the crossing line intersects at -1.

Hope this helps!

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Alja [10]

The answer would be

y=-1/5x

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2 years ago

Help me with these 2 problems

nekit [7.7K]

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2 years ago

Solve for z. 7z +4 – 9z = 8 z = [?]

ZanzabumX [31]

Answer:

Z = -2

Step-by-step explanation:

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2 years ago

Read 2 more answers

Math Geniuses, I need your help!

vesna_86 [32]

Answer:

100

Step-by-step explanation:

Since the second 4 is two decimal points away from the first 4, the answer should be 100 (two zeros)

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2 years ago

A consulting firm had predicted that 35% of the employees at a large firm would take advantage of a new company Credit Union, bu

m_a_m_a [10]

Answer:

a) 0.4770

b) 3.9945

c) z-statistics seem a large value

Step-by-step explanation:

a. Find the standard deviation of the sample proportion based on the null hypothesis

Based on the null hypothesis:

$p_{0}$ : 0.35

and the standard deviation σ = $\sqrt{p_{0} *(1-p_{0}) }$ = $\sqrt{0.35 *0.65 }$ ≈0.4770

b. Find the z statistic

z-statistic is calculated as follows:

z= $\frac{X-p_{o} }{\frac{s}{\sqrt{N} } }$ where

X is the proportion of employees in the survey who take advantage of the Credit Union ( $\frac{138}{300}=0.46$ )
$p_{0}$ is the proportion in null hypothesis (0.35)
s is the standard deviation (0.4770)
N is the sample size (300)

putting the numbers in the formula:

z= $\frac{0.46-0.35} }{\frac{0.4770}{\sqrt{300} } }$ = 3.9945

c. Does the z statistic seem like a particularly large or small value?

z-statistics seem a large value, which will cause us to reject the null hypothesis.

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3 years ago