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koban [17]
2 years ago
11

Which type of evidence uses information gained through research? A. empirical B. statistical C. anecdotal D. analogical

Mathematics
1 answer:
Effectus [21]2 years ago
6 0
The answer is A. empirical.
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PLEASE SOMEONE HELP ME WITH THIS QUESTION I DONT GET IT ITS DUE TODAY
nadya68 [22]
-466820 sorry perdone
8 0
2 years ago
A random sample of 77 fields of corn has a mean yield of 26.226.2 bushels per acre and standard deviation of 2.322.32 bushels pe
PSYCHO15rus [73]

Answer:

Therefore the  95% confidence interval is (25,707.480 < E < 26,744.920)

Step-by-step explanation:

n = 77

mean u = 26,226.2  bushels per acre

standard deviation s = 2,322.32

let E = true mean

let A = test statistic

Find 95% Confidence Interval

so

let  A =  (u - E) *  (\sqrt{n}  / s)   be the test statistic

we want      P( average_l <  A  < average_u )  = 95%

look for  lower 2.5%  and the upper 97.5%  Because I think this is a 2-tail test

average_l =  -1.96  which corresponds to the 2.5%

average_u = 1.96

P(  -1.96  <  A  <  1.96)  =  95%

P(  -1.96  <  (u - E) *  (\sqrt{n}  / s)  <  1.96)  =  95%

Solve for the true mean E ok

E   <   u + 1.96* (s  / \sqrt{n})

from  -1.96  <  (u - E) *  (\sqrt{n}  / s)

E < 26,226.2 +  1.96*( 2,322.32 / \sqrt{77} )

E < 26,226.2 +  1.96*( 2,322.32 / \sqrt{77} )

E < 26,226.2 +  518.7197348105429466

upper bound is 26,744.9197

or

u - 1.96* (s  / \sqrt{n})  < E

26,226.2 -  518.7197348105429466  < E

25,707.48026519  < E

lower bound is 25,707.48026519

Therefore the  95% confidence interval is (25,707.480 < E < 26,744.920)

7 0
2 years ago
What is the domain of the given function?
andrezito [222]
I have no idea tbh bro
7 0
2 years ago
Triangle abc has given the area: 2.95 , angle A: 80 and side b:2. Find the requested length, c
klio [65]
Can you support your question by uploading a drawing?
7 0
3 years ago
Pls answer the question in the picture.
mr_godi [17]

Answer:

5:2

Step-by-step explanation:

3 0
3 years ago
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