It’s B
Just did it
It’s correct
Answer:
95% confidence level should be used for a confidence interval.
The given confidence interval contains the value of 85 sec, so there is not sufficient evidence to support the claim that the mean is greater than 85 sec.
Step-by-step explanation:
0.05 significance level
1 - 0.05 = 0.95
0.95*100% = 95%
This means that a 95% confidence level should be used for a confidence interval.
Confidence interval is found to be −1.8 sec<μ<213.5 sec, what should we conclude about the claim?
Contains the value of 85 sec, thus there is not sufficient evidence to support the claim that the mean is greater than 85 sec.
Answer:
Step-by-step explanation:y–3=½(x+2)
Multiply through by the denominator (2).
2×y–2×3=½(x+2)×2
2y–6=1(x+2) because the denominator (2) will cancel the other 2 multiplying it
2y–6=x+2
2y=x+2+6
2y=x+8
---. -----
2. 2
•°•y=x+8
-----. Or y=x+4
2
Answer:
1. n=10
2. n=35
3. n=6
4. n=0 ? not sure for this one. two variables in the proportion
5. n=36
Step-by-step explanation:
set each set of proportion equal to each other and do cross multiplication
hope this helps !
how are you ?
Answer:
I think the answer is 7×2+8
7×2=14+8=22.
