Answer:
Step-by-step explanation:
- 2396 × 78 + 2396 × 22 =
- 2396 × (78 + 22) =
- 2396 × 100 =
- 239600
I hope this helps answer your question.
The solution for this problem is:
The x-bar or the mean is = 150Confidence level is 80%sample size is 36
E = t*s/sqrt(n)= 1.3062*40/sqrt(36)=1.3062 * 6.66667= 8.708
An 80% Confidence Interval is: 150-8.708 < u < 150+8.708Or141.3 < u < 158.7 is the confidence interval
Step-by-step explanation:
8% = 0.08
60 * (1 + 0.08) = $64.80