There is a margin of error on a food survey of 6%. What is the range of the number of students who prefer chicken strips to meat
2 answers:
Answer:
Option C. 705 to 784 students
Step-by-step explanation:
margin error = 6%
range of students = 68 to 97
n = 1070
The margin of error is given by the formula:
ME =
where z is the critical value
p = the probability of an event happening
n = sample size
Therefore, taking the confidence level of 5 % and extrapolating in the tables, the value will range somewhere between 705 to 784 students.
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Answer:
The width of the football field is 160 feet.
The length of the football field is 360 feet.
Step-by-step explanation:
Let w represent width of the football field.
We have been given that the length is 200 ft more than the width, so the length of the field would be .
We are also told that the perimeter is 1,040 ft. We know that football field is in form of rectangle, so perimeter of field would be 1 times the sum of length and width. We can represent this information in an equation as:
Let us solve for w.
Therefore, the width of the football field is 160 feet.
Upon substituting in expression
, we will get length of field as:
Therefore, the length of the football field is 360 feet.