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You want to by a typist for a local company. As part of the application process, they have you type for one minute 36 times. You did this and they found that you typed an average of 49 words per minute with a standard deviation of 5 words. Their policy is that they hire people who type 50 words per minute, so you did not make the cut. The boss of the company calls you in and says that you barely missed the cut and wants to offer you an opportunity to show that you should be hired. You say, "Lets test the idea that I have a mean typing rate of 50 words per minute against the hypothesis that I type less than 50 words per minute. If our Ho is not rejected." Your boss is impressed and tells you to run the test. Run the test and tell me if you get the job. I apply for the same job and type 20 words per minute with a standard deviation of 5 words in my 36 timed trials. I make the same pitch that you did. How many more words per minute would I need to have typed in order to get the job?

You want to by a typist for a local company. As part of the application process, they have you type for one minute 36 times. You did this and they found that you typed an average of 49 words per minute with a standard deviation of 5 words. Their policy is that they hire people who type 50 words per minute, so you did not make the cut. The boss of the company calls you in and says that you barely missed the cut and wants to offer you an opportunity to show that you should be hired. You say, "Lets test the idea that I have a mean typing rate of 50 words per minute against the hypothesis that I type less than 50 words per minute. If our Ho is not rejected." Your boss is impressed and tells you to run the test. Run the test and tell me if you get the job. I apply for the same job and type 20 words per minute with a standard deviation of 5 words in my 36 timed trials. I make the same pitch that you did. How many more words per minute would I need to have typed in order to get the job?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 23PFA
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You want to by a typist for a local company. As part of the application process, they have you type for one minute 36 times. You did this and they found that you typed an average of 49 words per minute with a standard deviation of 5 words. Their policy is that they hire people who type 50 words per minute, so you did not make the cut. The boss of the company calls you in and says that you barely missed the cut and wants to offer you an opportunity to show that you should be hired. You say, "Lets test the idea that I have a mean typing rate of 50 words per minute against the hypothesis that I type less than 50 words per minute. If our Ho is not rejected." Your boss is impressed and tells you to run the test. Run the test and tell me if you get the job. I apply for the same job and type 20 words per minute with a standard deviation of 5 words in my 36 timed trials. I make the same pitch that you did. How many more words per minute would I need to have typed in order to get the job?
Transcribed Image Text:You want to by a typist for a local company. As part of the application process, they have you type for one minute 36 times. You did this and they found that you typed an average of 49 words per minute with a standard deviation of 5 words. Their policy is that they hire people who type 50 words per minute, so you did not make the cut. The boss of the company calls you in and says that you barely missed the cut and wants to offer you an opportunity to show that you should be hired. You say, "Lets test the idea that I have a mean typing rate of 50 words per minute against the hypothesis that I type less than 50 words per minute. If our Ho is not rejected." Your boss is impressed and tells you to run the test. Run the test and tell me if you get the job. I apply for the same job and type 20 words per minute with a standard deviation of 5 words in my 36 timed trials. I make the same pitch that you did. How many more words per minute would I need to have typed in order to get the job?
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