1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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
You might be interested in
Can someone help me
jeka57 [31]
Number one is really easy just set it up in proportions. 420 over x and 7 hours over 24 cause you know there 24 hours in a day and then cross division and simplify. I think.
8 0
4 years ago
1.
ratelena [41]
Amount Financed: $2,650
Finance Charge: $484.69
Number of Payments: 36

(Finance Charge)/(Amount Financed)*100$=($484.69)/($2,650)*100$
(Finance Charge)/(Amount Financed)*100$=(0.1829)*100$
(Finance Charge)/(Amount Financed)*100$=$18.29

In the row of number of Payments 36, we look for:
(Finance Charge)/(Amount Financed)*100$=$18.29, and we see to which annual porcentage rate it corresponds in the first row

Answer: 11.25% 

7 0
3 years ago
6x + 3 (2x) - 7 - 2³ Please include th steps to solving it.
Alchen [17]

Answer:

24x-15

Step-by-step explanation:

Let's do this together with a step-by-step explanation!

First we need to make sure we remember that there are appropriate ways on how to solve these. LIKE PEMDAS.

6x + 3 (2x) - 7 - 2³

Let's multiply the 3 and 2x together.

6x + 6x - 7 - 2³

Now let's do the exponent

6x + 6x - 7 - 8

Now let's add everything together! But remember only common variables can be added together.

24x - 15 is the answer.

You can no longer break anything down.

I really hope this helped you!

4 0
3 years ago
Read 2 more answers
Last season, two running backs on the Steelers
DerKrebs [107]

Answer:

Step-by-step explanation:

Last season two running backs on the Steelers football team rushed a combined total of 1550 yards.  One rushed 4 times as many yards as the other.  Let x and y represent the number of yards each individual player rushed. this is the equation that was used

         x + y = 1550

         y  = 4x

7 0
3 years ago
Why are these triangles similar?​
nataly862011 [7]

Answer SAS

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Solve for the given variable:<br><br> A = P (1 + rt) for t
    8·1 answer
  • I gave 3 packs of baseball cards to my friends. Each friend got 1/3 of a pack. How many friends got baseball cards
    14·1 answer
  • The marching band at your school has 1.5 times as many trumpets as flutes. Which statement is true? these are the answers.
    9·2 answers
  • What does the combine place value strategy make it easier to find the difference
    6·1 answer
  • Suppose f(π/3) = 3 and f '(π/3) = −7,
    14·1 answer
  • ANSWER NOW FOR A LOT OF POINTS!
    14·1 answer
  • Solve -1.2x+2.5=0.8x+6.5<br>x=2<br>O<br>x=-4 0​
    7·1 answer
  • 1/3 (x + 3)<br> I need a answer fast please
    9·2 answers
  • Question 9 of 10
    6·1 answer
  • An angle measures 66.4º more than the measure of its complementary angle. What is the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!