Answer:
Step-by-step explanation:
Given that:
The sample size = 150
The sample mean = 70.69
The standard deviation = 29.60
The sample mean is equal to the point estimate of the population = 70.69
At 99% confidence interval level is:
∝ = 1 - 0.99
∝ = 0.01
The critical value:

The Margin of error = 

= 2.58 × 2.4168
≅ 6.235
At 99% confidence interval; the estimate of the population mean lies within the interval:
= 
= 70.69 - 6.235 < μ < 70.69 + 6.235
= 64.455 < μ < 76.925
= (64.455
, 76.925
)
Answer:
4
Step-by-step explanation:
y^2-7y-8
-4^2-7(-4)-8
−16−(7)(−4)−8
−16−(−28)−8
12−8
4
If you have a graphing calculator you’d want to use log and it will pretty much give you the answer
What is the mode of 5, 12, 11, 5, 6, 19, 5, 7, 8, 6, 5, 11, 8?<br><br>
8<br>
5<br>
11
Alinara [238K]
The mode is the most common number in the list.
I see four 5s, which is more than two 11s or two 8s or two 6s or one of everything else.
Answer: 5