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sleet_krkn [62]
3 years ago
6

The median salary for a chiropractor in the United States is $81,500 per year, according to the U.S. Department of Labor. A grou

p of recent graduates believe this amount is too low. In a random sample of 205 chiropractors who recently graduated, 170 began with a salary of more than $81,500 and five earned a salary of exactly $81,500. State the null hypotheses and alternate hypotheses.
Mathematics
1 answer:
dsp733 years ago
7 0

Answer:

attached

Step-by-step explanation:

attached

Download docx
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What is the area of the shaded region?​
IRINA_888 [86]
20 because of the whole is 40 and the shaded part is by 20 you just take half of 40 and you get 20
3 0
3 years ago
A weather forecaster says the temperature will be about-5C “give or take” 10 degrees. What is the greatest possible temperature?
IRINA_888 [86]

The greatest possible temperature is 5^{\circ} \mathrm{C} and least possible temperature is -15^{\circ} \mathrm{C}

<u>Solution:</u>

Given that according to weather forecaster the temperature will be about -5 degree celsius given or take 10 degree”

Need to determine greatest possible temperature and least possible temperature.

Give and take in given statement means a temperature can go up by 10 degrees and can go down by 10 degrees

So greatest possible temperature will be -5^{\circ} \mathrm{C}+10^{\circ} \mathrm{C}=5^{\circ} \mathrm{C}

Least possible temperature will be -5^{\circ} \mathrm{C}-10^{\circ} \mathrm{C}=-15^{\circ} \mathrm{C}

Hence according to weather forecaster, greatest possible temperature = 5^{\circ} \mathrm{C} and least possible temperature = -15^{\circ} \mathrm{C}

4 0
3 years ago
an employee makes $14.41 per hour but is getting a 7.5% increase. what is his new wage per hour to the nearest cent​
givi [52]
To calculate the employee raise, we multiply how much he is making by the percent of his raise.

Raise= 14.41*7.5%

Change to decimal 14.41*.075

Raise=.75

His raise is $10.80
3 0
3 years ago
Read 2 more answers
Ariel sold bags of gourmet popcorn for the school fundraiser. She sold 30 bags in two weeks, raising $112.50 for the school. How
creativ13 [48]

Answer:

3.75 dollars

Step-by-step explanation:

If 30 bags of popcorn = 112.50

Then what would one bag equal?

First start off by putting money/bags

\frac{112.50}{30}

Then solve.

112.50/30 = 3.75

Your answer is 3.75.

Hope this is correct, and hope it helps ^_^

4 0
3 years ago
Read 2 more answers
What is the domain of y=cot x?
MissTica

We have to find the domain of y = cotx

We know that cotx = cos x / sinx

And also when sinx becomes zero cotx becomes undefined

And again we know that value of cosx and sinx can be between -1 to 1

But value of cotx can lie in between -∞ to +∞

Just for example cot30 is cos30 / sin30

= √3/2/1/2 = √3

Therefore domain of cotx is x

x ∈ R , x ≠ πn for any integer n

5 0
3 years ago
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