Answer:
<h2>x = -1 or x = 6</h2>
Step-by-step explanation:
Answer: a) 683 b) 1067
Step-by-step explanation:
The confidence interval for population proportion is given by :-
a) Given : Significance level :
Critical value :
Margin of error :
Formula to calculate the sample size needed for interval estimate of population proportion :-
Hence, the required sample size would be 683 .
b) If no estimate of the sample proportion is available then the formula to calculate sample size will be :-
Hence, the required sample size would be 1067 .
✅
<u>Step-by-step explanation</u>:-
<u>To verify</u>:-
Hence verified. ✔
1a. Answer:
<u>Step-by-step explanation:</u>
6.013 is 6 and 13 thousandths
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1b. Answer: x
<u>Step-by-step explanation:</u>
Answer:
Critical points are: 2 , -2 and 3.
Step-by-step explanation:
We have been given the expression:
We will factorize the given expression:
Using
Critical point are those values of an expression when it is equal to zero
Hence, the critical points are: 2,-2 and -3.