Enter problem statement here.Researchers suspect that myopia, or nearsightedness is becoming more common overtime. A study from the year 2000 showed 132 cases of myopia in 400 randomly selected people. A separate study from 2018showed 228 cases in 600 randomly selected people. Is there enough evidence to support the researcher's suspicion that the proportion of myopia cases in 2018 is higher than the proportion of myopia cases in 2000?Use alpha = 0.05.Let P1 represent the proportion of myopia cases in 2018 and let p2 be the proportion of myopia cases in 2000.1) State Ho and Ha2) Calculate the value of the test statistic, z (round to 2 decimal places)3) Calculate the p-value (round to 4 decimal places)4) Decide to reject or fail to reject Ho5) Write your conclusion in the context of the claim.When stating the hypotheses, for less than sign, use <, for more than use >, for equal use = and for not equal, use =/.IUT.!!X,Insert Formula

We have given that Sample size n1 = 400 , n2= 600 Favorable cases x1=132 , x2= 228…

Answered: ers suspect that myopia, or…

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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Suppose next that we have even less knowledge of our patient, and we are only given the accuracy of the blood test and prevalence of the disease in our population. We are told that the blood test is 9# percent reliable, this means that the test will yield an accurate positive result in 90% of the cases where the disease is actually present. Gestational diabetes affects 1 percent of the population in our patient’s age group, and that our test has a false positive rate of 4 percent. Use your knowledge of Bayes’ Theorem and Conditional Probabilities to compute the following quantities based on the information given only in part 2: What is the probability of having the disease given that you tested negative? Comment on what you observe in the above computations. How does the prevalence of the disease affect whether the test can be trusted?
first picture is the background information
A method of estimating earth temperature based on local precipitation is to build models based on 100s of years of earth at several different constant green house gas level (So constant global temperature for 100s of years) , and compare the correlation of statistical relationships between predicted precipitation patterns in a region, and observed precipitation patterns for a region in a few year time period.
What are the predictive errors that will occur in regression line?
Suppose you are interested in the role of social support in immune function among retired men who live alone. You ask 50 patients to record the number of days they do not see or interact with a friend or family member over a period of 1 month to see whether the number of nonsocial days in a typical month correlates with the number of new illnesses they experience per year. You decide to use the computational formula to calculate the Pearson correlation between the number of nonsocial days in a month and the number of illnesses per year. To do so, you call the number of nonsocial days in a month X and the number of illnesses per year Y. Then, you add up your data values (∑X and ∑Y), add up the squares of your data values (∑X2 and ∑Y2), and add up the products of your data values (∑XY). The following table summarizes your results: ∑X 590 ∑Y 380 ∑XY 4,887 ∑X2 10,456 ∑Y2 4,258 Find the following values: The sum of squares for the number of nonsocial days in a month is SSX=…
first picture is the background information
If there is a perfect association between sexual attraction and accelerated heartbeat, then sex is unhealthy there is strong evidence that sexual attraction and accelerated heartbeat are causally related if there is no sexual attraction, the heartbeat never accelerates whenever the heartbeat accelerates, people become sexually attractive

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