Answer:
31
Step-by-step explanation:
31
The answer will be 23 bcd. Hope it’s helps
combine your like terms and get x by its self
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 = 