3. Compute for the sample size if the margin of error is 12, with a sample standard deviation of 35 and a 95% level of confidence.
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
Please answer Item Number 3
![Directions: Study and analyze each case. Apply the formula necessary to solve the
stated problem. Show your solutions on the space provided. Use extra
paper if necessary.
1. In a sample of 100 cars with a standard deviation of 25km/h speed. Find the
margin of error if the level of confidence is 90%.
2. Mr. V wanted to know the average weight (in kilos) of students in LAO University.
He took a random sample of 300 students and discovered that their average weight
55kg with a standard deviation of 0.8kg. Construct a 95% confidence interval for
the mean weight of students in the University.
3. Compute for the sample size if the margin of error is 12, with a sample standard
deviation of 35 and a 95% level of confidence.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb4a8dc4d-05cf-4e82-8f2e-f7d4df013e5c%2F0ba1c330-0193-4c0a-a10f-a0741b2e8467%2F8vwregj_processed.jpeg&w=3840&q=75)
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