Answer:
3
Step-by-step explanation:
Answer:
subtract 20.008 from -3.835 and you get -23.843
Step-by-step explanation:
Answer:
The lines are parallel
Step-by-step explanation:
If they have no solution that means that they never intersect which akes them parallel
Given:
Sample size, n = 40
Sample mean, xb = $6.88
Population std. deviation, σ = $1.92 (known)
Confidence interval = 90%
Assume normal distribution for the population.
The confidence interval is
(xb + 1.645*(σ/√n), xb - 1.645*(σ/√n)
= (6.88 + (1.645*1.92)/√40, 6.88 - (1.645*1.92)/√40)
= (7.38, 6.38)
Answer: The 90% confidence interval is (7.38, 6.38)
3 terms
https://youtu.be/0sq2PMQ_Nak
use that video to help you.
