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ADMS 2320 Study Guide - Final Guide: Confidence Interval, F-Test

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orangemole176
9 Dec 2013
School
York University
Department
Administrative Studies
Course
ADMS 2320
Professor
all

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Document Summary

There is enough evidence to infer that the mean weight of new product is different from 180 lbs. We estimate with 95% confidence the mean weight of new products lies between 178. 0667lbs and. There is not enough evidence to infer that the standard deviation will not exceed. Sample size to estimate p , (if p is unknown, take . 5) 1%: only if a is more than 8% smaller than b ( v ) Conclusion: reject h0, there is sufficient evidence the mean gpa now exceed the mean 10 years ago. 2. 85 -2. 33 or p-value =p(z< 2. 85) = . 5 . 4978 = . 0022. Conclusion: reject h0, there is enough evidence to conclude that management should adopt process a.

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Related Questions

Full step-by-step solutions will be chosen.

​Hello, after lots of time looking over these questions, I am still not quite grasping numbers 1-6. If I could get some assistance it would be much appreciated, thank you.

A sample of 42 observations is selected from one population with a population standard deviation of 3.1. The sample mean is 101.0. A sample of 52 observations is selected from a second population with a population standard deviation of 4.0. The sample mean is 99.8. Conduct the following test of hypothesis using the 0.04 significance level.
H0 : ?1 = ?2
H1 : ?1 ? ?2

(b)

State the decision rule. (Negative amounts should be indicated by a minus sign. Round your answer to 2 decimal places.)
The decision rule is to reject H0 if z is outside the interval (, ).

(c) Compute the value of the test statistic. (Round your answer to 2 decimal places.)

Value of the test statistic

(e) What is the p-value? (Round your answer to 4 decimal places.)

p-value