Answer:
3.06
Step-by-step explanation:
The correct answer is - 3.06
Reason -
For sample A :
mean, 
= 8.05
Standard deviation, 
= 1.36
Size, 
= 50
For sample B :
mean, 
= 7.26
Standard deviation, 
= 1.06
Size, 
= 38
Now,
- = 8.05 - 7.26 = 0.79
Standard deviation error, SE = √(²/ + ²/) = 0.2580
Now,
Z-statistic = ( - )/ SE
= 0.79/0.2580
= 3.06
⇒Z-statistic = 3.06
Hi there!
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I believe your answer is:
Keep in mind that this is APPROXIMATE.
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Here’s why:
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Hope this helps you. I apologize if it’s incorrect.
Answer:
2rs
Step-by-step explanation:
simplify- 2*7r^2s^2/7rs
r^2 divided by r^1=r^(2-1)=r^1=r
s^2 divided by s^1=s^(2-1)=s^1=s
canceling out 7 as it appears on both sides of the fraction line
Answer:
x= 12
Step-by-step explanation:
have a great day
good luck on your assignment
Answer:
x = 16
Step-by-step explanation:
they are equal angles
Please mark brainliest :)
