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How do I tell if this is a mean or a proportion 1. Insurance companies track life expectancy information to assist in determining the cost of life insurance policies. The insurance company knows that, last year, the life expectancy of itspolicyholders was 77 years. They want to know if their clients this year have a longer life expectancy, on average, so the company randomly samples some of the recently paid policies to see if the mean life expectancy of policyholders has increased. The insurance company will only change their premium structure if there is evidence that people who buy their policies are living longer than before.Ages:86 75 83 84 81 77 78 79 79 81 76 85 70 76 79 81 73 74 72 83Does this sample indicate that the insurance company should change its premiums because life expectancy has increased? Test an appropriate hypothesis and state your conclusion. Find and interpret a 95% confidence interval.And how do I even start this question
The length of the shadow of a 200 foot tower is 70 feet. find the angle of elevation of the sun.
Write a Matlab program to value a swing swap, Program a Monte Carlo model for options on Energy. It should be mean-reverting and include spikes. Give several alternative structures
Find the total distance from the given particle - Evaluate the total distance traveled by the particle from t = 0 and t = 4
Choose the largest subset for cover, and then remove all its elements from universal set. Repeat by adding subset consisting of largest number of uncovered elements until all is covered.
Description of Probability distribution function, Please give step-by-step process for solving the following probability problems.
What percentage of the commuters are expected to use public transportation 6 months from now?
Distributive Laws (I) Prove that A intersection (B union C) = (A intersection B) union (A intersection C)
A machine produces widgets at a defective rate of 6%. A sample of 6 widgets is taken, What is the probability that less than 2 of them are defective?
Betty is stacking boxes at a factory. Each box is 13 (3/4) inches high. The ceiling is 16 feet. How many boxes can she stack in one pile?
Calculate the sample regression line, where sales is the dependent variable and selling expenses and price are the independent variable.
In some chemical reactions, the rate at which the amount of a substance changes with time is proportional to the amount present. For the change of -glucono lactone into gluconic acid, for example, when is measured in hours.
The family cat is also walking in the backyard. The line segment between the cat and the two trees are always perpindicular. Find the equation of the locus of the cat.
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