o*Za/2 n E Solve the following problem in stages: According to prior research, the amount of time a medical doctor spends with patients has a standard deviation of 3.6 needed to estimate the true mean time medical doctors spend with their patients. If a researcher wants to be 96% con within 1.2 minutes of the population parameter, what is the minimum sample size necessary for such findings? [COM up!] Finally, substituting the corresponding values into the formula, what is the minimum sample size necessary for such fine forget to round up, no matter what!
o*Za/2 n E Solve the following problem in stages: According to prior research, the amount of time a medical doctor spends with patients has a standard deviation of 3.6 needed to estimate the true mean time medical doctors spend with their patients. If a researcher wants to be 96% con within 1.2 minutes of the population parameter, what is the minimum sample size necessary for such findings? [COM up!] Finally, substituting the corresponding values into the formula, what is the minimum sample size necessary for such fine forget to round up, no matter what!
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Section 1.1
![QUESTION 5
o*Za/2
n=
Solve the following problem in stages:
According to prior research, the amount of time a medical doctor spends with patients has a standard deviation of 3.6 minutes. Further study is
needed to estimate the true mean time medical doctors spend with their patients. If a researcher wants to be 96% confident that the estimate is
within 1.2 minutes of the population parameter, what is the minimum sample size necessary for such findings? [COMMENTS & HINTS: Round
up!]
Finally, substituting the corresponding values into the formula, what is the minimum sample size necessary for such findings? And yes, don't
forget to round up, no matter what!](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F622bb469-b9c7-46a9-a831-40710d9ebd70%2F9cf57fc3-1414-44de-9ffa-2737b9e07834%2Fd3k3spn_processed.png&w=3840&q=75)
Transcribed Image Text:QUESTION 5
o*Za/2
n=
Solve the following problem in stages:
According to prior research, the amount of time a medical doctor spends with patients has a standard deviation of 3.6 minutes. Further study is
needed to estimate the true mean time medical doctors spend with their patients. If a researcher wants to be 96% confident that the estimate is
within 1.2 minutes of the population parameter, what is the minimum sample size necessary for such findings? [COMMENTS & HINTS: Round
up!]
Finally, substituting the corresponding values into the formula, what is the minimum sample size necessary for such findings? And yes, don't
forget to round up, no matter what!
Transcribed Image Text:QUESTION 6
Shifting to a different problem context, solve the following problem, and don't forget to round appropriately.
A registered dietician, wants to estimate the population mean average for the number of soda cans that teenage boys drink daily. She wants to be
90% confident in her answer. She knows from past research that the population standard deviation is two cans of soda. She wants her answer to
be accurate to within one-quarter of a can. How large a simple random sample does she need to collect? HINT: The critical value should be
rounded to no fewer than three decimal places: #.### or #.####, for example; if you over-round the critical value, the final sample size answer will
not round correctly.
QUESTION 7
Shifting to another problem context, solve the following problem, and don't forget to round appropriately.
A food scientist at Healthy Habits magazine is tasked by the magazine's editor-in-chief to estimate the mean number of between-meal snacks that
Americans eat weekly. What is the minimum size of the sample she should collect if the magazine's editor editor-in-chief assumes the population
standard deviation is approximately 5 snacks, achieving 99% confidence with the results using a margin of error of 2 snacks?
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