Answer:
x =7/ 3
Step-by-step explanation:
5x+ 22= 2x+ 29
⇔5x - 2x= 29 - 22
⇔3x = 7
⇔x = 7/3
Answer:
( 11.7 , 12.7 )
Step-by-step explanation:
The provided information is:
Sample mean =
Standard deviation =
Sample size = n = 49
Significance level =
Thus, the 95% confidence interval is: