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tain iestions 1-6. 1. Find P( X < $48000). 2. A professor's salary(X) was selected from this college. Find P( X> $46000). 3. A professor's salary(X) was selected from this college. Find P( $45000

tain iestions 1-6. 1. Find P( X < $48000). 2. A professor's salary(X) was selected from this college. Find P( X> $46000). 3. A professor's salary(X) was selected from this college. Find P( $45000

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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can annual salary for tenured college professors at a certain college is $50,000. Assume o = $1,800, Answer Questions 1-6. 1. Find P( X< $48000). 2. A professor's salary(X) was selected from this college. Find P( X> $46000). 3. A professor's salary(X) was selected from this college. Find P( $45000 <X< $55000). 4. Sixty-four professor's salaries were selected at random. The mean, X-bar, was calculated. Find P( X-bar< $48000). 5. Sixty-four professor's salaries were selected at random. The mean, X-bar, was calculated. Find P( X-bar> $46000). 6. Sixty-four professor's salaries were selected at random. The mean, X-bar, was calculated. Find P( $45000 <X-bar < S55000). 7. The average test score in 2020 of a Standardized English Exam was 600 with a population standard deviation (population) of 80, Find Lowest Test Score x which is in the 81" Percentile. An Independent Education Research team desires to estimate the population mean GPA , µ, of Ball College for the year 2020. The sample mean was 3.2. Assume a population standard deviation of 1.5 (o ). Answer Questions 8-10. 8. A sample of 100 students was take at random. Find the 99% Confidence Interval for µ and interpret your results. 9. Suppose o is not given and n= 29 students were selected at random. Assume s= 1.8. Find the 90% confidence Interval for µ and Interpret your results. 10.. Suppose o is not given and n= 29 students were selected at random. Assume s= 1.8. Find the 95% confidence Interval for µ and Interpret vour results.
Transcribed Image Text:can annual salary for tenured college professors at a certain college is $50,000. Assume o = $1,800, Answer Questions 1-6. 1. Find P( X< $48000). 2. A professor's salary(X) was selected from this college. Find P( X> $46000). 3. A professor's salary(X) was selected from this college. Find P( $45000 <X< $55000). 4. Sixty-four professor's salaries were selected at random. The mean, X-bar, was calculated. Find P( X-bar< $48000). 5. Sixty-four professor's salaries were selected at random. The mean, X-bar, was calculated. Find P( X-bar> $46000). 6. Sixty-four professor's salaries were selected at random. The mean, X-bar, was calculated. Find P( $45000 <X-bar < S55000). 7. The average test score in 2020 of a Standardized English Exam was 600 with a population standard deviation (population) of 80, Find Lowest Test Score x which is in the 81" Percentile. An Independent Education Research team desires to estimate the population mean GPA , µ, of Ball College for the year 2020. The sample mean was 3.2. Assume a population standard deviation of 1.5 (o ). Answer Questions 8-10. 8. A sample of 100 students was take at random. Find the 99% Confidence Interval for µ and interpret your results. 9. Suppose o is not given and n= 29 students were selected at random. Assume s= 1.8. Find the 90% confidence Interval for µ and Interpret your results. 10.. Suppose o is not given and n= 29 students were selected at random. Assume s= 1.8. Find the 95% confidence Interval for µ and Interpret vour results.
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