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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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the diagram below has a cake is divided at a cake sale, if all the slices are sold at a total of $2500 would be collected. how m
Anarel [89]

Answer:

I am pretty sure $750

Step-by-step explanation:

Since there are 10 slices of cake, you would have to divded the cost ($2,500) by 10 to find out the cost per slice (you would get $250). Since we are finding the cost of 3 slices, you would mulitply 250 by 3, then you get your answer

4 0
2 years ago
A rich woman deposits a whole number of dollars x in her bank. The next time she deposits y dollars (still a whole number). Each
grin007 [14]

Answer:

x = 12

y = 22

Total amount = $2596

Step-by-step explanation:

First let's find the value of each deposit until the 10th in relation to x and y:

1st: x

2nd: y

3rd: x + y

4th: x + 2y

5th: 2x + 3y

6th: 3x + 5y

7th: 5x + 8y

8th: 8x + 13y

9th: 13x + 21y

10th: 21x + 34y

Now, we can write a system with two equations and two variables:

2x + 3y = 90

21x + 34y = 1000

From the first equation: x = (90 - 3y)/2

Using this value of x in the second equation, we have:

21*(90 - 3y)/2 + 34y = 1000

945 - 31.5y + 34y = 1000

2.5y = 55

y = 22

Now we can find x:

x = (90 - 3*22)/2 = 12

Now, summing all the deposits, we have a total of 55x + 88y, which is equal to 55*12 + 88*22 = $2596

5 0
3 years ago
The Bengals football team scored 2 touchdowns for 6 points each, one extra point, and 3 field goals for 3 points each. The Raven
Yanka [14]

bangles scored 22 pts but don't know how much the ravens scored


4 0
3 years ago
The sum of a number and 3 is 8
Doss [256]

Answer:

5

Step-by-step explanation:

5 0
2 years ago
a star athlete at a local college scored 640 points during the 31 basketball games she played in the 2004 regular season what wa
Varvara68 [4.7K]

Answer:

20.65 points.

Step-by-step explanation:  

We have been given that a star athlete at a local college scored 640 points during the 31 basketball games. We are asked to find the average number of points she scored per game.

To find the average number of points scored per game by player we will divide total number scored by the total number of games.

\text{Average number of points scored per game}=\frac{640}{31}

\text{Average number of points scored per game}=20.645161290322580\approx 20.65

Therefore, the average number of points scored per game by the player is 20.65 points.

7 0
3 years ago
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