Example 3: Last year, the population mean of electric energyconsumption in city A was 150kwh/month. After a public energysavings awareness campaign, obserse on electric energy867 Carryconsumption of some households.100-120-140-160-(KWH/month)Households120140160180119.3Assuming that X is normally distributed, does the data suggest thatthe population mean of electric energy consumption decrease?Carry out a test using a significance level of .05.Ans: t=-3,375E

Claim : the population mean of electric energy consumption decrease.

Answered: Example 3: Last year, the population…

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 fraction nonconforming control chart with center line 0.20, UCL = 0.32, and LCL = 0.08 is used to control a process. Find the average run length if the process fraction nonconforming shifts to 0.40.
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O Macmillan Learning In 2017, the entire fleet of light-duty vehicles sold in the United States by each manufacturer must emit an average of no more than 86 milligrams per mile (mg/mi) of nitrogen oxides (NOX) and nonmethane organic gas (NMOG) over the useful life ( 150,000 miles of driving) of the vehicle. NOX + NMOG emissions over the useful life for one car model vary Normally with mean 82 mg/mi and standard deviation 5 mg/mi. A company has 25 cars of this model in its fleet. What is the probability that the average NOX + NMOG level of these cars is above 86 mg/mi? Give your answer to four decimal places. probability: MacBook Air
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If age were held fixed, but a person put on 15 pounds, what would you expect for the corresponding change in systolic blood pressure? (Use 2 decimal places.)If a person kept the same weight but got 15 years older, what would you expect for the corresponding change in systolic blood pressure? (Use 2 decimal places.)(e) Test each coefficient to determine if it is zero or not zero. Use level of significance 5%. (Use 2 decimal places for t and 3 decimal places for the P-value.) t P value β2 β3

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