5) Acute myeloblastic leukemia is among the most deadly of cancers. Past experience indicates that the time in months that a patient survives after initial diagnosis of the disease is normally distributed with a mean of 13 months. A new treatment is being investigated and the observations on the survival time (in months) under the new treatment obtained are 8.0 13.6 13.2 13.6 12.5 14.2 14.9 13.4 8.6 11.5 16.0 14.2 19.0 17.9 a) The researcher thinks that the new treatment prolong the average survival time without affecting variability. At a = 0.05, i0s the researcher belief is true? Justify. Ans : Since test value(0.7629) falls in acceptance region, do not reject H

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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5) Acute myeloblastic leukemia is among the most deadly of cancers. Past experience indicates
that the time in months that a patient survives after initial diagnosis of the disease is normally
distributed with a mean of 13 months. A new treatment is being investigated and the
observations on the survival time (in months) under the new treatment obtained are
8.0
13.6
13.2
13.6
12.5
14.2
14.9
13.4
8.6
11.5
16.0
14.2
19.0
17.9
a) The researcher thinks that the new treatment prolong the average survival time without
affecting variability. At a = 0.05, i0s the researcher belief is true? Justify.
Ans : Since test value(0.7629) falls in acceptance region, do not reject H,
Transcribed Image Text:5) Acute myeloblastic leukemia is among the most deadly of cancers. Past experience indicates that the time in months that a patient survives after initial diagnosis of the disease is normally distributed with a mean of 13 months. A new treatment is being investigated and the observations on the survival time (in months) under the new treatment obtained are 8.0 13.6 13.2 13.6 12.5 14.2 14.9 13.4 8.6 11.5 16.0 14.2 19.0 17.9 a) The researcher thinks that the new treatment prolong the average survival time without affecting variability. At a = 0.05, i0s the researcher belief is true? Justify. Ans : Since test value(0.7629) falls in acceptance region, do not reject H,
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