6. Click here to open the distribution applet You are planning on applying to the Knirhsdaeh institute as a psychology counselor. They hire milions of psychologists around the world. You know the standard deviation for the salaries is $7 k. To find the average, you sample 22 random employees and get an average salary of $66 k. Find an 94% confidence interval for the true average salary of Knirhsdaeh employees. Use 2 decimal places. Lower bound Upper bound 7. Agent 043 is hired to test the destructiveness of the government's new VV0435 missile. She tests 42 rockets, and by assuming normality, she calculates a 86% confidence interval for their destructive force as (738.48, 835.66). What was the average of Agent 043's 42 rockets? Use 2 decimal places. 8. Click here to open the distribution applet You are going to estimate how long a person holds down a button on their calculator by randomly selecting people and asking them to do something on your calculator (which has a special timer to record how long the enter button is pressed). You practiced on the people at work and found a standard deviation of about 1.17 seconds. You want to get a 91% confidence interval that is only 0.1 in width. How many people do you need to have in your study? Remember to always round up on sample size calculations.
6. Click here to open the distribution applet You are planning on applying to the Knirhsdaeh institute as a psychology counselor. They hire milions of psychologists around the world. You know the standard deviation for the salaries is $7 k. To find the average, you sample 22 random employees and get an average salary of $66 k. Find an 94% confidence interval for the true average salary of Knirhsdaeh employees. Use 2 decimal places. Lower bound Upper bound 7. Agent 043 is hired to test the destructiveness of the government's new VV0435 missile. She tests 42 rockets, and by assuming normality, she calculates a 86% confidence interval for their destructive force as (738.48, 835.66). What was the average of Agent 043's 42 rockets? Use 2 decimal places. 8. Click here to open the distribution applet You are going to estimate how long a person holds down a button on their calculator by randomly selecting people and asking them to do something on your calculator (which has a special timer to record how long the enter button is pressed). You practiced on the people at work and found a standard deviation of about 1.17 seconds. You want to get a 91% confidence interval that is only 0.1 in width. How many people do you need to have in your study? Remember to always round up on sample size calculations.
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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Transcribed Image Text:6.
Click here to open the distribution applet
You are planning on applying to the Knirhsdaeh institute as a psychology counselor. They hire millions of psychologists around the
world. You know the standard deviation for the salaries is $7 k. To find the average, you sample 22 random employees and get an
average salary of s66 k. Find an 94 confidence interval for the true average salary of Knirhsdaeh employees.
Use 2 decimal places.
Lower bound Upper bound
7.
Agent 043 is hired to test the destructiveness of the government's new VW0435 missile. She tests 42 rockets, and by assuming
normality, she calculates a 86% confidence interval for their destructive force as (738.48, 835.66). What was the average of
Agent 043's 42 rockets?
Use 2 decimal places.
8.
Click here to open the distribution applet
You are going to estimate how long a person holds down a button on their calculator by randomly selecting people and asking
them to do something on your calculator (which has a special timer to record how long the enter button is pressed). You practiced
on the people at work and found a standard deviation of about 1.17 seconds. You want to get a 91% confidence interval that is
only 0.1 in width. How many people do you need to have in your study?
Remember to always round up on sample size calculations.
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