1. A random sample of 15 households in Cebu City provided the following data on the number of kilowatt-hours (KWM) of electricity they consumed in a month: 618 615 520 522 614 478 568 623 558 485 592 618 575 630 468 Using 99% confidence level, the true average monthly electricity consumption in kWh is betwecn: Is the average monthly electricity consumptions of households in this city significantly different from the 620 kWh average morthly electricity consumptions of the Philippines? Yes / No

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Question 19
1. A random sample of 15 households in Cebu City provided the following data on the number of kilowatt-hours (kWh) of
electricity they consumed in a month:
618
615
520
522
614 478
568
623 558 485 592 618 575 630 468
Using 99% confidence level, the true average monthly electricity consumption in kWh is between:
Is the average monthly electricity consumptions of households in this city sıgnificantly different from the 620 kWh average monthly
electricity consumptions of the Philippines? Yes / No
Transcribed Image Text:Question 19 1. A random sample of 15 households in Cebu City provided the following data on the number of kilowatt-hours (kWh) of electricity they consumed in a month: 618 615 520 522 614 478 568 623 558 485 592 618 575 630 468 Using 99% confidence level, the true average monthly electricity consumption in kWh is between: Is the average monthly electricity consumptions of households in this city sıgnificantly different from the 620 kWh average monthly electricity consumptions of the Philippines? Yes / No
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