**CCN and ActMedia Study on Supermarket Checkout Waiting Times****Background:**CCN and ActMedia developed a television channel targeted at people waiting in supermarket checkout lines, featuring news, short features, and advertisements. The program duration was based on the assumption that the average waiting time in these lines is 8.1 minutes. An analysis will be conducted using a sample of actual waiting times to assess this assumption and determine if the actual mean differs from the standard.**a. Hypothesis Formulation:**- Null Hypothesis ($H_0$): $\mu = 8.1$- Alternative Hypothesis ($H_a$): $\mu \neq 8.1$**b. Sample Analysis:**A sample of 100 shoppers revealed an average waiting time of 8.9 minutes, with a population standard deviation ($\sigma$) of 2.8 minutes. The task is to calculate the p-value.- **z value:** (to 2 decimals)- **p-value:** (to 4 decimals)**c. Conclusion at $\alpha = 0.02$:**Evaluate the conclusion based on the significance level of $0.02$.- Conclusion: [Select appropriate option]- Interpretation: Determine if the population mean waiting time significantly differs from 8.1 minutes.**d. 98% Confidence Interval Calculation:**Compute the 98% confidence interval for the population mean:- Interval: $([value], [value])$ (to 2 decimals)**Does the Confidence Interval Support the Conclusion?**Assess if the interval includes $\mu = 8.1$:- Decision: [Select appropriate option]This analysis provides insight into whether the television channel's assumption about supermarket checkout waiting times holds true.

As per our guidelines we can solve first three subpart and rest can be reposted. Solution-: Given:…

Answered: CCN and ActMedia provided a television…

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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Consider the following research questions/study scenarios. For each study, discuss the most appropriate methods for describing the data (graphically and numerically). What statistical method would be most appropriate for addressing the research questions? Be sure to provide justification of the statistical method. When a statistical test is needed, provide appropriate null and research hypotheses. A study investigating the effects of second-hand smoke in working environments asked the following question: “How often do you experience second-hand smoke in a work environment/function? Never, Occasionally, Fairly Often, Very Often, Almost Always.” The question was asked of managers and employees to determine whether there was an association between position and the amount of second-hand smoke exposure. The responses to the questions were grouped into Little/Non and Often, where Little/None was defined as responses of Never or Occasionally and Often was defined as responses of Fairly…
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