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Out of 300 people sampled, 180 had kids. Based on this, construct a 90% confidence interval for the true population proportion of people with kids. Do not use StatCrunch. Show all formulas used, work and steps. Be sure to define your variables.
As in the reading, in your calculations:
--Use z = 1.645 for a 90% confidence interval
--Use z = 1.96 for a 95% confidence interval
--Use z = 2.576 for a 99% confidence interval
Give your answer in interval notation rounded to 3 decimal places. Then interpret your answer in a complete sentence within the context of the problem.
Consider the results of the hypothesis test you conducted above. Which of the two types of errors could you have committed? Explain the ramification of committing such an error in the context of this scenario.
Explain why the statement is incorrect. There are eight grades in Garfield Elementary School. If a student is selected at random from the school.
So obviously some goals of a firm would be to make profit but what are some other goals and what about goals on the financial management side?
What is the probability that a random sample of 200 customer shipments would contain 188 or fewer on-time deliveries if the true population of on-time deliveries is 96%?
The Ice Chalet offers dozens of different beginning iceskating classes. All of the class names are put into a bucket.
List the employee numbers for your sample. Find the average salary for your sample and interpret this number.
vertical banded gastroplasty is a surgical procedure that reduces the volume of the stomach in order to produce weight
a box contains three marbles one red one green and one blue. consider an experiment that consists of taking one marble
A firm raises capital by selling ?$25,000 worth of debt with flotation costs equal to 1?% of its par value. If the debt matures in 15 years and has an annual c
You are curious about whether the professors and students at your school are of different political persuasions, so you take a sample of 20 professors and 20 students drawn randomly from each population.
Suppose the heights of adult males in a population have a normal distribution with mean µ = 70 inches and standard deviation s = 2.8 inches.
The price of a book depends on the length. Let the random variable C denote the price of a book in dollars. If C = 4 + 0.1*P, what is the expected value of the price of a book?
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