A simple experiment with a random sample of 10 mathematics students werefound to have the following heights (in cm).155, 185, 175, 175, 173, 170, 169, 164, 161, 185Assume the heights of mathematics students are independently and normallydistributed X ~ N(0,0²) with a known variance of o² =99.12 cm².(a)Calculate a point estimate of the mean height 0 and a probability that thisestimate is exactly equals to the true value of 0.(b)Compute the standard error, ơ/\n of the sample mean by using givenvariance.Estimate an equal-tailed 90% confidence interval for 0 by using thesample mean and its standard error.(c)(d)Calculate an equal-tailed 50% confidence interval for 0.

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Answered: Calculate a point estimate of the mean…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Similar questions

A marketing research company desires to know the main consumption of milk per week among males over age 26. They believe that the milk consumption has a mean of 2.2 liters and want to construct a 98% confidence interval with a maximum error of 0.07 liters. Assuming a variance of 1.96 liters,
(i) Determine if the hypothesis test is one tailed or two tailed. (ii) Find the critical value. Round the answer to at least two decimal places. (iii) Compute the test value. Round the standard deviations and F-score values to two decimal places as needed. (iv) Make the decision and summarize the results.
Select all of the assumptions that you need to make when creating a confidence interval on the difference between means. At least 2% of the population sampled Independently sampled values Homogeneity of variance Normally distributed populations?
A sample of 18 items provides a sample standard deviation of 6.(A). Compute the 90% confidence interval estimate of the population standard deviation. (B). Compute the 95% confidence interval estimate of the population variance.
A sample of 20 automobiles has a pollution by-product release standard deviation of 2.5 ounces when one gallon of gasoline is used. Find the 95% confidence interval of the population variance. using chi table determine the confidence interval of the true population variance
A protein powder manufacturer randomly selected 35 samples of their top selling product. The sample's standard deviation is 4.2 grams. Assuming the weights of the protein powder product is normally distributed, construct a (a) 88%; (b) 98% confidence interval for the population variance and standard deviation.
hypothesis testing is the topic
The electric cooperative needs to know the mean household usage of electricity by its non-commercial customers in kWh per day. They would like the estimate to have a maximum error of 0.1 kWh. A previous study found that for an average family the variance is 6.25 kWh and the mean is 15.6 kWh per day. If they are using a 98% level of confidence, how large of a sample is required to estimate the mean usage of electricity? Round your answer up to the next integer.

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