Answer:
Step-by-step explanation:
Hello!
The hypothesis tested where that "adds produce no change" symbolically p=0.7 versus "negatives are below 70%" symbolically: p < 0.70
So the hypothesis tested where:
H₀: p=0.7
H₁: p < 0.70
After conducting the analysis the p-value was 0.291
To decide over a hypothesis test using the p-value you have to compare it with the significance level of the test. The decision rule is the following:
If p-value > α, the decision is to not reject the null hypothesis.
If p-value ≤ α, the decision is to reject the null hypothesis.
Let's say the significance level of the test is α= 0.05
Using this level the decision is to nor reject the null hypothesis.
This means that after the political ad campaign the proportion of negatives hasn't changed.
I hope it helps!
Answer:
Pie
Step-by-step explanation:
Answer:
a. 4.05 b. 3.84 c. 1.2475 and 1.1344 d. 1.1169 and 1.0651 e. We can say that the overall job satistaction of senior executives and middle managers is about 4; however, there is more variability in the job satisfaction for senior executives than in the job satisfaction for middle managers.
Step-by-step explanation:
a. (1)(0.05)+(2)(0.09)+(3)(0.03)+(4)(0.42)+(5)(0.41) = 4.05
b. (1)(0.04)+(2)(0.1)+(3)(0.12)+(4)(0.46)+(5)(0.28) = 3.84
c. We compute the variances as follow: = 1.2475 and = 1.1344
d. The standard deviation is the squared root of the variance, therefore, we have and
e. The expected value of the job satisfaction score for senior executives is very similar to the job satisfaction score for middle managers. We can say that the overall job satistaction of senior executives and middle managers is about 4; however, there is more variability in the job satisfaction for senior executives than in the job satisfaction for middle managers.
Answer:
1.68m2
Step-by-step explanation:
The area of a rectangle is given by (l = length, w = width):
A=l* w
So, in this case, we just have to plug in the numbers.
A=2.1m*0.8m=1.68m2
So, the area of the rectangle is 1.68 m².
HOPE THIS HELPED ;3
Answer:
I believe it is A pls tell if I am wrong