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
valina [46]
3 years ago
7

PLEASE HELP ME IM BEGGING I also need the work shown

Mathematics
1 answer:
attashe74 [19]3 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
60. The distance between two stars increases at a rate
madreJ [45]
It is equal to 9.461 x 10 km
5 0
3 years ago
Please answer, the best answer gets brainliest
puteri [66]

Answer:

Median is 18.

Mean is 22.

Step-by-step explanation:

Median has to be ordered from least to greatest:

1, 9, 17, 18, 25, 41, 43

then the median is the number in the middle, which is 18.

Mean is the sum of all the numbers, divided by 7 (because there are 7 numbers given)

25+18+9+1+43+17+41= 154

154/7 = 22

8 0
3 years ago
Read 2 more answers
Find the percent of change from $40 to $50.
andrezito [222]

Answer:

125%

Step-by-step explanation:

so you are increasing by $10, and $10 is 25% of $40, so the percent change is 125%

3 0
3 years ago
Read 2 more answers
This use how many this answer
babunello [35]
11/8 would be your answer

3 0
3 years ago
A teacher was interested in finding out whether a special study program would increase the scores of students on a national exam
bija089 [108]

Answer:

Check the explanation

Step-by-step explanation:

Going by the first attached image below we reject H_o against  H_1 if obs.T > t_{\alpha /2;n-1}

here obs.T=1.879

\therefore obs.T \ngtr 2.447=t_{0.025;6}

we accept H_o:\mu _{1}=\mu_{2} at 5% level of significance.

i.e there is no sufficient evidence to indicate that the special study program is more effective at 5% level of significance.

1.

this problem is simillar to the previous one except the alternative hypothesis.

Let X_i's denote the bonuses given by female managers and Y_i's denote the bonuses given by male managers.

we assume that X_i \sim N(\mu _{1},\sigma _{1}^{2}) Y_i \sim N(\mu _{2},\sigma _{2}^{2}) independently

We want to test H_0:\mu_{1}=\mu_{2} vs H_1:\mu_{1}\neq \mu_{2}

define D_i=X_i-Y_i , i=1(1)8

now D_i\sim N(\mu _{1}-\mu _{2}=\mu _{D},\sigma _{1}^{2}+\sigma _{2}^{2}=\sigma _{D}^{2}) , i=1(1)8

the hypothesis becomes

H_0:\mu_{D}=0 vs H_1:\mu_{D}\neq 0

in the third attached image, we use the same test statistic as before

i.e at 5% level of significance there is not enough evidence to indicate a difference in average bonuses .

3 0
3 years ago
Other questions:
  • Which of the following is the sine ratio
    7·2 answers
  • HELP...Cant figure it out
    13·1 answer
  • (3×10)+(4×1)+(5× <br> 10<br> 1<br> ​ )+(5× <br> 100<br> 1<br> ​ )+(6× <br> 1000<br> 1<br> ​ )
    8·1 answer
  • 7. Simplify this what’s the answer?
    15·1 answer
  • Please I need help with one and 2 questions
    12·1 answer
  • What is the LCD for 5/6 and 3/10? (Those are fractions)
    14·2 answers
  • List two equivalent numbers to 0.50
    6·1 answer
  • Explain or show that the point (5,−4) is a solution to this system of equations:
    13·1 answer
  • What is the correct standard form for 30+2+0.1+0.005<br><br>​
    10·1 answer
  • Naika took out a $29,300 5 year Federal Loan with an interest rate of 3.22%. She will
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!