Answer:
Step-by-step explanation:
Hello!
You are asked to test the difference of the population means of the opinion of men and women over a constitutional amendment to ban burning the national flag.
Population 1 (women)
Sample n₁= 400
X[bar]₁= 80.6
Population 2 (men)
n₂= 586
X[bar]₂= 77.6
σ₁= σ₂ = σ =3.5
To test whether there is a difference between the opinion of people about the amendment regarding their gender the hypothesis is:
H₀: μ₁ - μ₂ = 0
H₁: μ₁ - μ₂ ≠ 0
α: 0.05
The statistic to use is a pooled Z:
Z=<u> (X[bar]₁ - X[bar]₂) - (μ₁ - μ₂) </u> ~N (0;1)
σ*√(1/n₁ + 1/n₂)
The critical region for this hypothesis is two tailed:
Z=<u> (X[bar]₁ - X[bar]₂) - (μ₁ - μ₂) </u> = <u> (80.6-77.6) - 0 </u> = 13.215
σ*√(1/n₁ + 1/n₂) 3.5√(1/400 + 1/586)
Since the calculated Z-value is greater than the right critical value -81.96) the decision is to reject the null hypothesis. There is significant evidence to conclude that there is no difference between the population means of the opinion about the constitutional amendment to ban the burning of the national flag of women and men.
I hope it helps!
Answer:
-14 is the answer
Step-by-step explanation:
Since 18+(-32) is the same as 18-32, the answer would be negative. When you subtract 32 by 18, you get 14. Moreover, you have to know which side is greater. If the integer is more on the left, meaning the negative side, then your sum of 18-32 is negative.
<em>I know it's hard for people to understand me but I've tried my best to explain it to you. :)</em>
Answer:
The answer to your question is speed = 9 m/s
Step-by-step explanation:
Data
Winner Last runner
time = 45 s time = 48 s
speed = 9.6 m/s
Process
1) Calculate the distance they ran using the data of the winner
speed = distance / time
-Solve for distance
distance = speed x time
-Substitution
distance = (9.6)(45)
-Result
distance = 432 m
2.- Calculate the speed of the last runner
-Substitution
speed = 432/48
-Result
speed = 9 m/s
Answer:
(10,6)
Step-by-step explanation:
The equation you would use to solve this is (x1+x2/2 , y1+y2/2) so when you plug in the numbers you get this (6+14/2 , 3+9/2) which eventually simplifies into (10, 6)
Answer:
From Newton’s second Law
F = ma
a = Fm = 300 N /(30 kg + 10kg) =
300 N/(40 kg) = 7.5 m/s2
Note: Sled mass is added because person will accelerate along with it.
It seems that the questions is to be a physics subject
Thank you and please rate me as brainliest as it will help me to level up.
