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A coffee shop owner decides whether to keep her business open during the quarantine restrictions. She calculated that to break even the average daily revenue must exceed KZT130000. Using the data from the first 20 days of the quarantine period, she decides to statistically test the hypothesis that she can break even. Using an appropriate statistical test and a 99% confidence level, in which case below can she reject the null that the revenue does not exceed the break-even threshold? Select one: a. The average recorded revenue is KZT150000 and sample standard deviation is KZT70000 b. The average recorded revenue is KZT140000 and sample standard deviation is KZT12000 c. The average recorded revenue is KZT130000 and sample standard deviation is KZT13000 d. The average recorded revenue is KZT135000 and sample standard deviation is KZT10000 e. In none of the cases

A coffee shop owner decides whether to keep her business open during the quarantine restrictions. She calculated that to break even the average daily revenue must exceed KZT130000. Using the data from the first 20 days of the quarantine period, she decides to statistically test the hypothesis that she can break even. Using an appropriate statistical test and a 99% confidence level, in which case below can she reject the null that the revenue does not exceed the break-even threshold? Select one: a. The average recorded revenue is KZT150000 and sample standard deviation is KZT70000 b. The average recorded revenue is KZT140000 and sample standard deviation is KZT12000 c. The average recorded revenue is KZT130000 and sample standard deviation is KZT13000 d. The average recorded revenue is KZT135000 and sample standard deviation is KZT10000 e. In none of the cases

MATLAB: An Introduction with Applications
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 coffee shop owner decides whether to keep her business open during the quarantine restrictions. She calculated that to break even the average daily revenue must exceed KZT130000. Using the data from the first 20 days of the quarantine period, she decides to statistically test the hypothesis that she can break even. Using an appropriate statistical test and a 99% confidence level, in which case below can she reject the null that the revenue does not exceed the break-even threshold? Select one: a. The average recorded revenue is KZT150000 and sample standard deviation is KZT70000 b. The average recorded revenue is KZT140000 and sample standard deviation is KZT12000 c. The average recorded revenue is KZT130000 and sample standard deviation is KZT13000 d. The average recorded revenue is KZT135000 and sample standard deviation is KZT10000 e. In none of the cases
Transcribed Image Text:A coffee shop owner decides whether to keep her business open during the quarantine restrictions. She calculated that to break even the average daily revenue must exceed KZT130000. Using the data from the first 20 days of the quarantine period, she decides to statistically test the hypothesis that she can break even. Using an appropriate statistical test and a 99% confidence level, in which case below can she reject the null that the revenue does not exceed the break-even threshold? Select one: a. The average recorded revenue is KZT150000 and sample standard deviation is KZT70000 b. The average recorded revenue is KZT140000 and sample standard deviation is KZT12000 c. The average recorded revenue is KZT130000 and sample standard deviation is KZT13000 d. The average recorded revenue is KZT135000 and sample standard deviation is KZT10000 e. In none of the cases
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