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garik1379 [7]
3 years ago
13

Help a fellow dumb student

Mathematics
1 answer:
kkurt [141]3 years ago
4 0

answers on on paper I did, good luck with literal equations I know they suck, just know to use inverse operations and these problems are basically normal problems replaced with variables instead.

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Melissa and Brian are at the base of a mountain. Melissa hikes to
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67 meters because if you use the triangle congruent method with the altitude at 65 degrees you should get the right answer
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To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun
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Answer:

We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 31.7 milligrams

Sample mean, \bar{x} = 28.5 milligrams

Sample size, n = 9

Alpha, α = 0.05

Sample standard deviation, s =  2.8 milligrams

First, we design the null and the alternate hypothesis

H_{0}: \mu = 31.7\text{ milligrams}\\H_A: \mu < 31.7\text{ milligrams}

We use One-tailed t test to perform this hypothesis.

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t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

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Now, t_{critical} \text{ at 0.05 level of significance, 8 degree of freedom } = -1.860

Since,                  

t_{stat} < t_{critical}

We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

3 0
4 years ago
As a salesperson, you are paid $50 per week plus $2 per sale. This week you want your pay to be at least $100. What is the minim
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Let s represent the number of sales, and t the total pay
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so set t to 100, and solve for s

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Answer:

122

Step-by-step explanation:

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122

Used remainder theorem

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3 years ago
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lions [1.4K]
That’s answer is A)-3,4) because you reflect as follows
6 0
3 years ago
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