Answer:
The Sample Size Need To be at least 114
Step-by-step explanation:
According to the Question,
- Given, A university dean of students wishes to estimate the average number of hours students spend doing homework per week. The standard deviation from a previous study is 6.2 hours.
The Maximum Error(E) is given as 1.5 hours and the standard deviation(σ) is 6.2 hours.
- Now, For 99% Confident the level of value α is 0.01.
α/2 = 0.01/2 ⇒ 0.005
- Thus, From The table, We get that the value of
is 2.58.
Hence, the sample size n can be found as
n = {
}²
n = {2.58 × 6.2}² / 1.5²
n = 113.72 .
So, The Sample Size Need To be at least 114.
Answer:
i dont know bro
Step-by-step explanation:
Answer:
<u><em>Yes, No, Yes, Yes, Yes!</em></u>
Step-by-step explanation:
First Question:
<u>That is correct </u>because if you have $0 in your bank account and you withdraw $30 you will have -$30!
(And you are in debt which everyone hates!)
Second Question:
<u>No</u>, because that would be 125 above ground. You would need to say -125 instead of adding.
Third Question:
<u>Yes!</u> Let's say in the football game you had 70 yards, subtracting the 15 yards which you supposedly had lost would result in 55 yards therefore proving the fact that you did not progress but did the exact opposite!
Fourth Question:
<u>Yes</u>, because you are gaining more on your stock. This results in you getting more of a share in a company or product.
Fifth Question:
To be honest, I don't know if this: "0 feet could represent the altitude of a city that is located at sea level." is a question but I will answer it nonetheless!
<u>Yes,</u> because before right where the sea "starts" is what is called point 0. Meaning that, you are located at sea level!
If the function is translated two units up, then it means the y value of every x value is moved up two units, or y + 2. This means the new function will be f(x)+2
Answer: x=10
Step-by-step explanation: 7x10 =77. 90-77=13 which was shipping
