Answer:
D
Step-by-step explanation:
6*2=12
6*3=18..........
Answer:
0 in²
Step-by-step explanation:
Maybe it would help to show some lines or something shape-like.
<span>the geometric mean of 14 and 20 is 16.7332005307</span>
3/5 because you find what goes into each and simplify. 9/15 each divided by 3. 9/3=3 15/3=5 so 3/5 is your answer.
Answer:
(27.954, 30.046)
Yes
Step-by-step explanation:
Given that :
Mean (m) = 29
Standard deviation (σ) = 2.2
Sample size (n) = 17
Confidence interval (α) = 95%
Average age as claimed by the company = 28
Confidence interval formula :
Mean ± (Zcritical * σ/sqrt(n))
Zcritical at 95% = 1.96
(Zcritical * σ/sqrt(n)) = (1.96 * (2.2/sqrt(17)) = (1.96 * 0.5335783) = 1.0458136
Lower boundary = (29 - 1.0458136) = 27.954186
Upper boundary = (29 + 1.0458136) = 30.045813
(27.954, 30.046)
b. Does this result lend support to the car's company's claim?
Yes, it does, 28 falls in between the the calculated confidence interval.
