Answer:
is there a picture?
Step-by-step explanation:
<h2>
Answer with explanation:</h2>
Let 
denotes the sample proportion.
As per given , we have
n= 200
Critical value for 99% confidence : 
Confidence interval for population proportion :-
Hence, a 99% confidence interval for the proportion of all individuals that use Firefox: 
The lower limit on the 99% confidence interval = 0.085
Answer:
20 students
Step-by-step explanation:
Sample is basically a selected subset of a population. A researcher is investigating the effect of sugary cereal on the aggression of second graders during morning play period. For this purpose, a researcher selected 20 student and feed them a sugary cereal and then observe their behaviors. Here, 20 student are selected from the all second grader students. So, the sample in the conducted study are 20 students.
Answer:
y = 4.95x + 3.75
Step-by-step explanation:
