Answer:
Lower limit = 1007.95 cm/s
Upper limit = 1142.05 cm/s
Step-by-step explanation:
We have to calculate a 95% CI with population's standard deviation known.
The sample is size n=60, with mean M=1075.
The confidence interval can be expressed as:

For a 95% CI, the value of z=1.96.

Answer:I don’t understand
Step-by-step explanation:just re Wright it and I’ll give you da answer;)
Answer:
4squareroot5
Step-by-step explanation:
<em>hope this helps. i am in algebra two so you can trust my answer. happy holidays and stay safe!</em>
First, we calculate the amplitude
A = (1/2) (xmax - xmin)
A = (1/2) (8 - (-2)) = 5
Since we're given with the period which is pi, then the coefficient of x is just 1. So, the model is
y = 5 sin x
45, 51, 52, 58, 61, 63, 66, 72, 74
You're trying to find the second quartile (Q₂), and to find that, you must find the median, and then find the median within the second half of the median :)
Median (Middle Number) : 61
Now, look at 61, and look at 74. What is the median of those numbers in this set?
Q₂ = 66
So, your quartile 2 is 66.
~Hope I helped!~