An antidepressant has historically been known to relieve depression for 65% of patients who use the drug. The drug's formula was changed recently to include asmaller dose of its main, active ingredient. Due to this change, a medical researcher suspects that among all people with depression who use the new version ofthe drug, the proportion, p, of people who find relief is lower than 65%. A random sample of 215 patients who use the new version is selected by theresearcher, and 125 of them find relief from depression. Based on these data, can we support the researcher's claim at the 0.05 level of significance?Perform a one-tailed test. Then complete the parts below.Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list offormulas.)

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Description: An antidepressant has historically been known to relieve depression for 65% of patients who use the drug. The drug's formula was changed recently to include asmaller dose of its main, active ingredient. Due to this change, a medical researcher suspe

Given : n=215 , X=125 , p0=0.65 , α=0.05 We want to test the claim that the proportion , p of people…

Answered: the proportion, p, of people who find…

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the proportion, p, of people who find relief is lower than 63%.

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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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

An antidepressant has historically been known to relieve depression for 65% of patients who use the drug. The drug's formula was changed recently to include a
smaller dose of its main, active ingredient. Due to this change, a medical researcher suspects that among all people with depression who use the new version of
the drug, the proportion, p, of people who find relief is lower than 65%. A random sample of 215 patients who use the new version is selected by the
researcher, and 125 of them find relief from depression. Based on these data, can we support the researcher's claim at the 0.05 level of significance?
Perform a one-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of
formulas.)

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