Answer:
The following are the missing numerators to make the LHS = RHS
46) 36 x³y²
47) 24 (xy)³
48) 5 (3x + 6)
49) 6(3x - 2)
50) 8m (m + n)
Step-by-step explanation:
I have attached how to derive the answer below.
Essentially, each case found what the denominator on the LHS was multiplied by to get to the denominator on the RHS. Then I multiplied the numerator by that same factor.
Answer:
The 80% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.149, 0.207).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
Suppose a sample of 292 tenth graders is drawn. Of the students sampled, 240 read above the eighth grade level.
So 292 - 240 = 52 read below or at eight grade level, and that
80% confidence level
So , z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:
The upper limit of this interval is:
The 80% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.149, 0.207).
