3 years ago

Need the answers for 4-8

Mathematics

1 answer:

Fed [463]3 years ago

6 0

Answer:

hope this helps you out ask me if you need more help

You might be interested in

What is the slope of the line that passes through the points (10, 5)<br> and (9, 5) ?

V125BC [204]

Answer:

Step-by-step explanation:

Y2-y1/x2-x1

5-5/9-10 =0/-1. Slope is 0

4 0

2 years ago

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:

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

5 0

3 years ago

If x+9.8=14.7, what is the value of 8(x-3.7?

yulyashka [42]

First find X by subtracting 9.8 from 14.7
X should equal 4.9
than fill in the equation for x
8(4.9-3.7)
you then subtract in the parenthasis
getting the answer of 1.2
finally multiply 1.2x8
Your final answer is 9.6

3 0

3 years ago

In the right triangle shown, what is the value of x (to the nearest tenth)?

AVprozaik [17]

23.7 because you multiply

4 0

3 years ago

Read 2 more answers

The watch at Macys is $400. The store is having a sale and everything is 30% off. What is the discount amount?

sweet-ann [11.9K]

The answer would be $280.00 and that’s just simple as that :)

3 0

2 years ago

Read 2 more answers