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zalisa [80]
3 years ago
15

A researcher reports that the average salary of assistant professors is more than $42,000. A sample of 30 assistant professors h

as a mean salary of $43,260. At α = 0.01 test the claim that assistant professors earn more than $42,000 a year. A standard deviation of the population is $5230. Traditional Method.
(a) Identify the null and alternative hypotheses for this test.
(b) Identify the test statistic for this hypothesis test
(c) Accept or Reject the claim
Mathematics
1 answer:
alexira [117]3 years ago
4 0

Here I couldn't do this on Brainly but I made seperate pdf and did

Download pdf
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Answer two questions about Systems AAA and BBB: System AAA \text{\quad}start text, end text System BBB \begin{cases}x-7y=-3\\\\4
MrRa [10]

Answer:

B: swap the order of the equations

(Yes) they have the same solution

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
I need help plzzzzzzzzz help me​
andrew11 [14]

Answer:

Which do you need help with?

1. -6 is 4 units from -2 in the negative direction.

2. A. and D

Step-by-step explanation:

When adding negative numbers the negative will be more, but if you are adding positive and negative numbers, whichever sign (+ or -) has the bigger number then that is the sign of the answer.

Additive inverses are when two numbers are added together to equal zero. Therefore if you have -3+3, it would be an additive inverse.

Hope this helps.

5 0
3 years ago
Which choices are equivalent to the expression below?<br> Check all that apply.
gavmur [86]
There’s no answer choices..
5 0
2 years ago
Please help im struggling and it’s due in 30 minutes
MAXImum [283]
I know this is not an answer but if your having trouble with this there is a website called Desmos all you do is type in the equation for the graph and it gives you the answer
6 0
3 years ago
What are the measures of the angles in the triangle? (6x + 10) (x + 17) (4x - 34)​
REY [17]

I'm not quite sure these are right. You might wanna check with a classmate or something first.

Step-by-step explanation:

(6x + 10) + (x + 17) + (4x - 34) = 180

11x - 7 = 180

11x = 173

x = 15.73 (answer had repeating decimal so i rounded up in the hundredths place)

(6x + 10)

6 (15.73) + 10

94.38 + 10

104.38

(x + 17)

(15.73) + 17

32.73

(4x - 34)

4(15.73) - 34

62.92 - 34

28.92

7 0
3 years ago
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