A odel estimatesl using a dataet with 65 obwervations gemerates the Nlowing eultsVariableP>t|Std. Error-2.289370.0220.012640.596792x20.0055190.0144820.8771920.06070941.139340.0001.2820320.2001.1245890.3237428.80016x45.3326610.000Constant1.7661166.0167490.000What are the eulpoints for the 99% confidence interval for A,?O (11342, 3.3834)O None of the aboveO (0.1786, 0.4688)O 14719, 3.7210)O (0.1623, 0.4852)

Answered: Image /qna-images/answer/c5aa3134-3d40-4c29-9d91-1967ac3f8da7.jpg

Answered: A odel estimatesl using a dataet with…

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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A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 754 hours. A random sample of 30 light bulbs has a mean life of 732 hours. Assume the population is normally distributed and the population standard deviation is 62 hours. At a = 0.05, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). Zo = - 1.65 (Use a comma to separate answers as needed. Round to two decimal places as needed.) Identify the rejection region(s). Choose the correct answer below. O A. B. O C. Fail to reject H- Fail to reject Ho Fail to reject Ho- Reject Ho Reject Ho Reject Ho Reject H,- -4
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Suppose that you have a four-sided die that is equally weighted (i.e. equal chance of any of the four sides landing face up). The four values on the die are [12.5968, 2, -2 and -12.5968] . If we roll the die 81 times, record the average, and repeat this process a total of 100 times, what does the central limit theorem predict will be the standard deviation of the set of averages? A. 1.00 B. 0.729 C. 0 D. 1.40
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Suppose that the lifetimes of tires of a certain brand are normally distributed with a mean of 74.000 miles and a standard deviation ofo miles. These tires come with a 65,000-mile warranty. The manufacturer of the tires can adjust o during the production process, but the adjustment of o is quite costly. The manufacturer wants to set o once and for all so that only 2% of the tires will fail before warranty expires. Find the standard deviation to be set. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. | miles
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