The question is an illustration of right-angled triangles
The approximated value of x is 33.5 degrees
The given parameters are:
To determine the measure of angle x, we simply make use of the following sine ratio.
So, we have:
Take arc sine of both sides
This gives
Hence, the approximated value of x is 33.5 degrees
Read more about right-angled triangles at:
Answer:
Step-by-step explanation:
Given : Significance level :
Critical value :
Sample size : n=1305
The proportion of tenth graders read above the eighth grade level. =
The confidence interval for population proportion is given by :-
Hence, the 99% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.771,0.829) .