This answer is 272 I know because I did it vertically
40.8 because u take 15 percent of 48 and subtract it from 48
7.2 - 48 = 40.8
Answer:
y=6x+21
Step-by-step explanation:
simply 3x2+6x+15
Y= mx +b ; x is the slope and y is the y-intercept.
So in this case, our equation will be y= 3x + 19 :)
Answer: 
Step-by-step explanation:
Given : Sample size : 
Sample mean : 
Standard deviation : 
Significance level : 
Critical value : 
Formula to find the confidence interval for population mean :-

Hence, a 95% confidence interval for the population mean = 