3 years ago

PLEASE HELP ME IM GIVING 45 POINTS AND BRAINLEST!!!!! HELP NOW

Mathematics

1 answer:

kiruha [24]3 years ago

8 0

1st, 3rd,4th, and 5th should all be right

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scoray [572]

B is the correct answer

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What is the length of NA ?

vaieri [72.5K]

5x - 1 = 6x - 3
6x - 5x = -1 + 3
x = 2

LA = MA = NA = 5(2) - 1 = 10 - 1 = 9

answer is B. 9 units

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Step-by-step explanation:

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A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba

Ahat [919]

Answer:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

$\hat p=\frac{21}{100}=0.21$ estimated proportion of overfilled bags

$p_o=0.15$ is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:

Null hypothesis: $p =0.7$

Alternative hypothesis: $p > 0.15$

The statistic for this case is:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

And replacing the info given we got:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

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3 years ago

Help before I die please

mario62 [17]

Answer:

Ya no way in hell am I doing that srry :l

Step-by-step explanation:

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