Answer:
d. 2250.
Step-by-step explanation:
The calculation of mean square due to error (MSE) is shown below:-
Since there are four treatments i.e H0: μ1 = μ2 = μ3 = μ4
And, the SSTR is 6,750
Based on this, the mean square due to error is
= 
= 
= 2,250
Hence, the mean square due to error is 2,250
Therefore the correct option is d.
All the other information is not relevant. Hence ignored it
Check the picture below, y = 0 when that happens
bear in mind the square root would give us a +/- roots, however, since this is seconds, a negative unit would be unfeasible, thus we only used the positive root from it.
Answer:
Probability = 0.35
Step-by-step explanation:
Given :-
- Probability (Highway A Icy) = 0.1
- Probability (Highway B Icy) = 0.15
- Probability (Highway C icy) = 0.15
So :-
- Probability (Highway A not icy) = 1 - 0.1 = 0.9
- Probability (Highway B not icy) = 1 - 0.15 = 0.85
- Probability (Highway C not icy) = 1 - 0.15 = 0.85
Probability of person not getting to work timely
= Probability [Even one of the highway A, B or C is icy]
= 1 - Probability [None of Highway A, B, C is icy]
Since these are independent events, So :-
= Prob. [Highway A not icy & Highway B not icy & Highway C not icy]
= 1 - ( 0.9 x 0.85 x 0.85)
= 1 - 0.65
= 0.35
Part a)
Identify the variable and categoriesBy reading the above statement, we can find that there are two variables and each variable has 2 categories. The variables and their categories are:
1) Class Number
This variable is further divided into 2 categories i.e. Class 9th and Class 10th.
2) Participation in Extracurricular activities
This variable is further divided into 2 categories based on if students participated or not.
Part b)Set up and fill 2 way table.Since, we have 2 variables and each variable has 2 categories the number of data cells will be 2 x 2 = 4 cells
There are total 100 students. 40 students are in class 10th. This means 60 students are in class 9th.Out of 40 students in class 10th, 18 students participate in at least one extracurricular activity. So remaining 22 students do not participate. 32 students from class 9th participate in extracurricular activities, this means the remaining 28 students do not participate. Based on this data, we can fill up the table as shown below
You can get all the answeres easily.
Heres number 1: -1/5
