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Flauer [41]
2 years ago
7

How do I find the answer?

Mathematics
1 answer:
grin007 [14]2 years ago
3 0

Answer:

Step-by-step explanation:

87*

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The owners of an industrial plant want to determine which of two types of fuel (gas or electricity) will produce more useful ene
madreJ [45]

Answer:

d. H0: (\mu_e - \mu_g) = 0 vs. Ha: (\mu_e - \mu_g) \neq 0

Step-by-step explanation:

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

On this case the Management try to determine if there is a difference in the average investment/quad between using electricity and using gas. So this needs to be on the alternative hypothesis. And the complement of the alternative hypothesis would be on the null hypothesis.  

Null hypothesis :\mu_e = \mu_g

Alternative hypothesis: \mu_e \neq \mu_g

Or equivalently:

Null hypothesis :\mu_e - \mu_g = 0

Alternative hypothesis: \mu_e - \mu_g \neq 0

Other important thing is that on the alternative hypothesis we never can have the symbol equal.  

So on this case the best options is:

d. H0: (\mu_e - \mu_g) = 0 vs. Ha: (\mu_e - \mu_g) \neq 0

7 0
3 years ago
Michael is measuring fabric for quilts for his family she needs 3.4 meters of fabric she has 24.7 cm of fabric how much more cen
const2013 [10]

Answer: 315.3 cm / 3.153 meters

Step-by-step explanation:

3,4 meters = 340 cm

340 cm - 24.7 cm = 315.3 cm

4 0
3 years ago
Find the price-demand equation for a particular brand television when the demand is 20 TVs per week at $150 per TV, given that t
Alina [70]

Answer:

~150=50e^{-0.01()20}

~p(100)=\$127.7

Step-by-step explanation:

From the question we are told that:

Price of 20TVs per week P_{20}=\$150

Marginal price-demand function p'(x)=-0.5e-0.01x

Generally the The Marginal price function is mathematically given by

  p'(x)=-0.5e^{-0.01x}  

  p(x)=\int-0.5e^{-0.01x}  

  p(x)=50e^{-0.001x}+C  

Therefore the equation when the demand is 20 TVs per week at $150 per TV

150=50e^{-0.01()20}

Giving

p(x)=50e^{-0.01x}+150-50e^{-0.01(20)}

Therefore the Price when the demand is 100 TVs per week

p(100)=50e^{-0.01(100)}+150-50e^{-0.01(20)}

p(100)=\$127.7

7 0
2 years ago
Find the least common denominator for these two rational expressions.
lbvjy [14]
\frac{y}{y^{2}-1},\ \frac{y}{y^{2}-8y+7}
=\frac{y}{(y-1)(y+1)},\ \frac{y}{(y-1)(y-7)}
=\frac{y(y-7)}{(y-1)(y+1)(y-7)},\ \frac{y(y+1)}{(y-1)(y+1)(y-7)}

So the common denominator is (y-1)(y+1)(y-7)
8 0
3 years ago
Denies is a semester who is making men’s ties fo an event. She uses 3/4 of a yard of fabric per tie. Denies bought 12 yards of f
DiKsa [7]

Answer:

I think they can make 16 ties

8 0
2 years ago
Read 2 more answers
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