Answer: 1692
Step-by-step explanation:
Formula to find the sample size :
Given : Confidence level : 
⇒ significance level =
z-value for 90% confidence interval (using z-table)=
Prior estimate of the population proportion (p) of customers who keep up with regular vehicle maintenance is unknown.
Let we take p= 0.5
Margin of error : E= 2%=0.02
Now, the required sample size will be :
Simplify , we get
Hence, the required sample size = 1692
Answer:
50
Step-by-step explanation:
10x5=50
Answer:
100
Step-by-step explanation:
103.37 and after rounding off to nearest tenth it becomes 100
Answer:
The coordinates of point B are (-3,2)
Step-by-step explanation:
we know that
The formula to calculate the midpoint between two points is equal to
we have
substitute
Find the value of x_2
we have that
Find the value of y_2
we have that
therefore
The coordinates of point B are (-3,2)
whip out a calculator punch in the numbers and yell at them to read the answer
