**Description of Study and Statistical Analysis****Background:**A study investigated 420,071 cell phone users to assess the incidence of cancer in the brain or nervous system. Out of these participants, 136 developed such types of cancer. Historically, the rate of these cancers for individuals not using cell phones was recorded at 0.0321%.**Objective:**Utilize the study data to:a. Construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system.b. Evaluate whether the cancer rate among cell phone users significantly differs from the rate among non-users (0.0321%).**Tasks:**a. **Confidence Interval Construction:**Calculate the 90% confidence interval for the proportion of cell phone users developing brain or nervous system cancer. This interval will be presented with percentage bounds rounded to three decimal places.b. **Hypothesis Evaluation:**Determine if the cancer rate among cell phone users differs from the historical rate of 0.0321% for non-users. Choose the appropriate conclusion based on whether 0.0321% falls within the calculated confidence interval:- **Option A:** No, because 0.0321% is not included in the confidence interval.- **Option B:** No, because 0.0321% is included in the confidence interval.- **Option C:** Yes, because 0.0321% is included in the confidence interval.- **Option D:** Yes, because 0.0321% is not included in the confidence interval.

Name: **Description of Study and Statistical Analysis****Background:**A stu
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Description: **Description of Study and Statistical Analysis****Background:**A study investigated 420,071 cell phone users to assess the incidence of cancer in the brain or nervous system. Out of these participants, 136 developed such types of cancer. Historical

From the provided information, Sample size (n) = 420,071 136 of them developed cancer of the brain or nervous system that is x = 136 Sample proportion (p̂) = 136/420071 = 0.000324 Confidence level = 90% The z value at 90% confidence level from the standard normal table is 1.645.a) The required 90% confidence interval can be calculated as:b) No, because 0.0321% is included in the confidence interval. Therefore, the correct option is B).

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A study of 420,071 cell phone users found that 136 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0321% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. %

A study of 420,071 cell phone users found that 136 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0321% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. %

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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