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
fiasKO [112]
3 years ago
6

Please help i’ll give brainliest!!! thanks

Mathematics
2 answers:
Brut [27]3 years ago
7 0
I think school is designed to help poor because it’s for free
dalvyx [7]3 years ago
3 0

Answer:

Tang instituted government - funded <u>social programs </u>, which were designed to help the poor .

hope it is helpful to you.

You might be interested in
The dot plots below show the weights of the players of two teams: Based on visual inspection of the dot plots, which team appear
zloy xaker [14]
Team c it has more of its players weighing more than 126
6 0
3 years ago
Read 2 more answers
A triangle with area 195 square inches has a height that is one less than four times the base. Find the base and the height of t
Savatey [412]

Answer:

base = 85 square inches

Step-by-step explanation:

hienght 39 square inches plz give me the brailiest

5 0
3 years ago
Read 2 more answers
Question 5. We have 5-year statistics of average amount of wheat crop (tons) harvested from 1 km2 per year, the results are as f
tino4ka555 [31]

Answer:

a) t=\frac{524.6-550}{\frac{27.682}{\sqrt{5}}}=-2.052    

p_v =P(t_{(4)}    

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis.  

We can say that at 5% of significance the true mean is not significantly different from 550.

b) The 95% confidence interval would be given (490.184;559.016).  

We are confident at 95% that the true mean is between (490.184;559.016).

Step-by-step explanation:

Part a

Data given and notation  

560, 525, 496, 543, 499

The mean and sample deviation can be calculated from the following formulas:

\bar X =\frac{\sum_{i=1}^n x_i}{n}

s=\sqrt{\frac{\sum_{i=1}^n (x_i -\bar X)}{n-1}}

\bar X=524.6 represent the sample mean  

s=27.682 represent the sample standard deviation  

n=5 sample size  

\mu_o =550 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the population mean is equal to 550, the system of hypothesis are:

Null hypothesis:\mu = 550  

Alternative hypothesis:\mu \neq 550  

Since we don't know the population deviation, is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

t test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic  

We can replace in formula (1) the info given like this:  

t=\frac{524.6-550}{\frac{27.682}{\sqrt{5}}}=-2.052  

P-value  

We need to calculate the degrees of freedom first given by:  

df=n-1=5-1=4  

Since is a one-side left tailed test the p value would given by:  

p_v =P(t_{(4)}  

Conclusion  

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis.  

We can say that at 5% of significance the true mean is not significantly different from 550.

Part b

The confidence interval for a proportion is given by this formula  

\bar X \pm t_{\alpha/2} \frac{s}{\sqrt{n}}  

The degrees of freedom are 4 from part a

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.  

t_{\alpha/2}=2.78  

And replacing into the confidence interval formula we got:  

524.6 - 2.78 \frac{27.682}{\sqrt{5}}=490.184  

524.6 + 2.78 \frac{27.682}{\sqrt{5}}=559.016  

And the 95% confidence interval would be given (490.184;559.016).  

We are confident at 95% that the true mean is between (490.184;559.016).

4 0
3 years ago
Wing<br> Find the area of the<br> parallelogram:<br> 3 cm<br> 5 cm<br> 4.5 cm<br> A= [?] cm
Pie

Answer:

<h2>13.5 cm^2</h2>

Given,

Base(b)= 4.5 cm

Height(h)= 3 cm

Now,

Area of parallelogram= base * height

= 4.5 * 3

=13.5 cm^2

Hope this helps...

Good luck on your assignment...

7 0
3 years ago
Read 2 more answers
*falls on floor crying*❤️❤️❤️❤️
steposvetlana [31]

Answer:

-16 1/2 =16.5

-33/2 =-16.5

so the answer is = cuz -16.5=-16.5

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • If y varies inversely with x and y = 8...<br><br> the question is in the picture
    14·1 answer
  • A cable weighing 0.6 pounds per foot is attached to a small 80-pound robot, and then the robot is lowered into a 40-foot deep we
    9·1 answer
  • Please help me out!<br><br> Factor the expression.<br><br> 3x^2-14x-24
    9·1 answer
  • please please someone help my daughter with this assignment it has 3 parts please help with all 3 parts. if it helps she's in fl
    9·1 answer
  • Question is the picture:
    8·1 answer
  • 1/2x + 1/4 = 6 <br><br> PLEASE help
    8·1 answer
  • A patient was
    13·1 answer
  • X= <br>A. 100 <br>B. 50 <br>C. 25​
    9·1 answer
  • If you can’t see what it says this is what it says “ Jackson purchased a pack of game cards that was on sale for 22% off. The sa
    6·1 answer
  • In the statement
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!