Z=-4. z+6/3=2(z/4); cancel out the 2 on the right side[2/1*z/4---2z/4---z/2]. z+6/3=z/2; cancel out the denominator of 2 on the right side[z/2*2=z \\\ 2(z+6/3)=2z+12/3=2z+4]~~I know its alot, huh? Sry...~~ z=2z+4; subtract both sides by 2z[-z=4; divide by -1; z=-4] I hope that helped.
Answer:
777
Step-by-step explanation:kkk
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Answer:
Hello, I am having difficulties understanding thsi question, could youplease help me out so I can help you out?
Step-by-step explanation:
<h2>Thank you! </h2><h2>-Brainly User</h2>
Answer: (0.5496, 0.5754)
Step-by-step explanation:
The confidence interval for population proportion (p) is given by :-
, where
= Sample proportion , n= sample size , z*= Critical z-value.
Let p be the proportion of all college students who are in favor of banning Hawaiian shirt.
Given, A random sample of 4000 college students yielded 2250 who are in favor of banning Hawaiian shirts.
i.e. n=4000

z-value for 90% confidence level is 1.645
Now , 90% confidence interval for p would be :


Hence, the required 90% interval = (0.5496, 0.5754)