The answer to this question is:
<span>An ant looks up to the top of a tree with an angle of elevation of 38. if the ant is 43 feet from the base of the tree, what is the height of the tree, to the nearest tenth?
"33.6 Ft"
Hoped this helped, Vickicoward7545
Your Welcome :)</span>
Answer:
If you consider that both components are independent one of the other and the assembly consists of a union of both of them, the probability that a random element of the assembly meet specifications can be obtained as the product of their probabilities of meeting their specifications.
therefore the probability mass function of the number of components in the assembly are:
Answer:
Null hypothesis:
Alternative hypothesis: Not all the means are equal
The best option for this case would be:
H0:μ1=μ2=μ3=μ4
Ha: at least one of the means is different
Step-by-step explanation:
Previous concepts
Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".
The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"
Solution to the problem
For this case we are trying to proof if the mean number of courses taken in a college semester is different for freshmen, versus sophomores, versus juniors, versus seniors.
Based on this case we can set up the following system of hypothesis:
Null hypothesis:
Alternative hypothesis: Not all the means are equal
The best option for this case would be:
H0:μ1=μ2=μ3=μ4
Ha: at least one of the means is different
1. 5 1/2 - 1 2/3 This is the way I find easiest:-
= 11/2 - 5/3 LCD = 6 so multiply 11/2 by 3/3 and 5/3 by 2/2:-
= 33/6 - 10/6
= 23/6
= 3 5/6 Answer
Hope this helps