2 years ago

HELP ME ASAP i really really really really need help

Social Studies

1 answer:

umka2103 [35]2 years ago

3 0

What is the question?

You might be interested in

Which of the following Civil War battles in Georgia was one of the biggest victories for the Confederacy?

Andre45 [30]

Chickamauga Campaign, 1863

4 0

2 years ago

A survey asked 26 adults how many years of education they had. The sample mean was 13.03 with a standard deviation of 3.22. It i

yulyashka [42]

Answer: (11.95, 14.11)

Explanation:

Let x be a random variable that represent the number of years of education.

Given: Sample size : n= 26

Sample mean : $\overline{x}=13.03$

Sample standard deviation : s = 3.22

Significance level : $\alpha=100\%-90\%=10\%=0.1$

Degree of freedom: df = n-1 = 25

Critical t-value for $\alpha=0.1$ and df = 25 will be

$t_{\alpha/2, df}=t_{0.05,25}=1.7081$

90% confidence interval for mean:

$\overline{x}\pm t_{\alpha/2,df}\dfrac{s}{\sqrt{n}}\\\\=13.03\pm (1.7081)\dfrac{3.22}{\sqrt{26}}\\\\=13.03\pm (1.7081)\dfrac{3.22}{5.09902}\\\\=13.03\pm 1.08\\\\=(13.03-1.08,\ 13.03+1.08)\\\\ =(11.95,\ 14.11)$

A 90% confidence interval for the mean number of years of education = (11.95, 14.11)

5 0

2 years ago

The climate in Japan and the Koreas is controlled primarily by ____________.

Anestetic [448]

Artic Winds

have a nice day!

8 0

3 years ago

What water problem do you think is most critical in your community? Why?

vladimir2022 [97]

I think the most critical water problem in my community is the dirty water in different rivers and people are trying to drink in them since not a lot of people have much money to buy water

4 0

2 years ago

Read 2 more answers

Why do paleolithic female figurines vastly outnumber those representing males?.

navik [9.2K]

Answer:

Females played a central role in the culture.

8 0

1 year ago