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ZanzabumX [31]
3 years ago
11

Help me plzzzzzzzzzzzz

Mathematics
1 answer:
AleksAgata [21]3 years ago
5 0
I think the answer is 19.5
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uppose a new production method will be implemented if a hypothesis test supports the conclusion that the new method reduces the
True [87]

Tn the given situation, the appro[riate null hypotheses and alternative hypotheses are: H₀: μ₁ ≥ μ₂a and H₁: μ₁ < μ₂

<h3>What are alternative hypotheses?</h3>

An assertion used in statistical inference experiments is known as the alternative hypothesis.

It is indicated by Ha or H1 and runs counter to the null hypothesis.

Another way to put it is that it is only a different option from the null.

An alternative theory in hypothesis testing is a claim that the researcher is testing.

The initial assertion that forms the null hypothesis frequently rests on research from the past or expert knowledge.

According to the alternative hypothesis, a population parameter is either less, larger, or different from the value predicted by the null hypothesis.

So, the new production method supposedly lowers the mean operating cost per hour.

The following are the hypothesis when comparing the average production costs of the new production method (μ₁) with the old production method (μ₂):

H₀: μ₁ ≥ μ₂

H₁: μ₁ < μ₂

Therefore, in the given situation, the appro[riate null hypotheses and alternative hypotheses are: H₀: μ₁ ≥ μ₂a and H₁: μ₁ < μ₂

Know more about alternative hypotheses here:

brainly.com/question/13045159

#SPJ4

7 0
2 years ago
Please solve each algebraically : a) 5w= 30 b) 3x - 5 = 16 c) 10 - t = 17 d) n/5 = 18 e 4w -12 =2w + 3 THANK YOU!
alina1380 [7]

Answer:

w=6, x=7, t=7, n=90, w=15/2

Step-by-step explanation:

a) 5w = 30

30/5 = 6

w=6

b) 3x-5=16

Add 5 to each side.

3x+5=16+5

3x=21

21/3=7

x=7

c) 10-t=17

10-t=17

17-10-7

-t=-7

Negative and a negative is a positive.

t=7

d) n/5 = 18

n=18 * 5

n=90

e.) 4w-12=2w+3

4w=2w+3+12

4w=2w+15

4w−2w=15

2w=15

w= 15/2

4 0
3 years ago
Wolfrich lived in Portugal and Brazil for a total period of 14 months in order to learn Portuguese.
bezimeni [28]

Answer:

だよ

Step-by-step explanation:


6 0
4 years ago
What is 5x – 9 + 2x – 4 = 9.4
Vsevolod [243]
Simplifying
5x + -9 = 38

Reorder the terms:
-9 + 5x = 38

Solving
-9 + 5x = 38

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + 5x = 38 + 9

Combine like terms: -9 + 9 = 0
0 + 5x = 38 + 9
5x = 38 + 9

Combine like terms: 38 + 9 = 47
5x = 47

Divide each side by '5'.
x = 9.4

Simplifying
x = 9.4
5 0
3 years ago
Read 2 more answers
David spent 1/3 of his money on books. He spent another 1/6 of it on stationery and $50 on a radio. If he had $100 left, how muc
horsena [70]

Answer:

You have to work backwards here

so if you had 100 dollars left and u spent 50 on a radio

100+50=150

Then You spent a 1/6 of it on stationery

So you mustve had 5/6 money left or 150 dollars

so you multiply that to find that

5/6=150/x

5x=900

x=180

so add 30 dolalrs to 150 and you have 180.

the you spent a third

you repeat the same process

the you have ur ANSWER

5 0
3 years ago
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