Answer:
Step-by-step explanation:
a. The hypotheses are:
Null hypothesis: the average test scores are the same for the different teaching methods.
Alternative hypothesis: the average test scores are different for the different teaching methods.
b. To determine the degree of freedom for the F test: we must find two sources of variation such that we have two variances. The two sources of variation are: Factor (between groups) and the error (within groups) and add this up. Or use (N - 1). N is number in sample
c. With a p value of of 0.0168 and using a standard significance level of 0.05, we will reject the null hypothesis as 0.0168 is less than 0.05 and conclude that the average test scores are different for the different teaching methods.
The height of the rectangular sand box is 1 2/3 meters or 1.6666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666667 meters.
Answer:
you didnt put a pic bro how can we answer
the x intercept is where the line crosses the x axis or where y=0
so set y=0 and solve for x
0=-2x-1
solve for x
add 2x to both sides
2x=-1
divide by 2
x=-1/2
the x intercept is at x=-1/2, the point is (-1/2,0)
