Step-by-step explanation:
a. The point estimate is the mean, 47 days.
b. The margin of error is the critical value times the standard error.
At 31 degrees of freedom and 98% confidence, t = 2.453.
The margin of error is therefore:
MoE = 2.453 × 10.2 / √32
MoE = 4.42
c. The confidence interval is:
CI = 47 ± 4.42
CI = (42.58, 51.42)
d. We can conclude with 98% confidence that the true mean is between 42.58 days and 51.42 days.
e. We can reduce the margin of error by either increasing the sample size, or using a lower confidence level.
Answer:
3196
Step-by-step explanation:
A. You Add all the blocks.
B. Then you multiply 17 x your answer then you get your answer.
Answer: $2,700
Step-by-step explanation:
$18,000 times 5% = 900
900 times 3 is 2,700
Therefore your answer will be 2,700
