Elementary Statistics Plus MyLab Statistics with Pearson eText -- Access Card Package (7th Edition) (What's New in Statistics)
7th Edition
ISBN: 9780134684901
Author: Ron Larson, Betsy Farber
Publisher: PEARSON
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Textbook Question
Chapter 2.5, Problem 52E
Comparing z-Scores from Different Data Sets The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at the Academy Awards from 1929 to 2016. The distributions of the ages are approximately bell-shaped. In Exercises 51–54, compare the z-scores for the actors.
| Best actor | Best supporting actor |
| μ ≈ 43.7 yr | μ ≈ 50.4 yr |
| σ ≈ 8.7 yr | σ ≈ 13.8 yr |
52. Best Actor 2005: Jamie Foxx, Age: 37
Best Supporting Actor 2005: Morgan Freeman, Age: 67
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The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976-1977 through 2004-2005.
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μ = 1000 FTES
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median = 1,014 FTES
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σ = 474 FTES
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first quartile = 528.5 FTES
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third quartile = 1,447.5 FTES
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n = 29 years
a. What percent of the FTES were from 528.5 to 1447.5? (Enter your answer as a whole number.)
--These values are the first and third select one( quartiles, means, parameters, medians, standard deviations) , so_____ % of the FTES are within this range.
The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976-1977 through 2004-2005.
•
μ = 1000 FTES
•
median = 1,014 FTES
•
σ = 474 FTES
•
first quartile = 528.5 FTES
•
third quartile = 1,447.5 FTES
•
n = 29 years
A sample of 11 years is taken. About how many are expected to have a FTES of 1,014 or above? (Enter your answer as a whole number) ---type in---- years Explain how you determined your answer. (Enter your numerical answers as whole numbers.)
1,014 is the ---Select--- mean median value standard deviation third quartile first quartile of the given population parameters. This value is the ---Select--- last value 75th percentile first value 25th percentile middle value in the ordered list of data values. This value in a set of 11 will be the thnumber in order. Therefore, ---Select--- years will have totals at or below the median.
How do I solve this problem?
Chapter 2 Solutions
Elementary Statistics Plus MyLab Statistics with Pearson eText -- Access Card Package (7th Edition) (What's New in Statistics)
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- Part Darrow_forwardHello, I'm having some trouble with with these problems.arrow_forwardEyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made the time period of January 1 to March 31. The table gives the defect and the number of defects. Do the data support the notion that each defect type occurs in the same proportion? Test at the 5% level. Number of Defective Lenses Defect type Number of defects Scratch 1866 Right shaped - small 1935 Flaked 1979 Wrong axis 1921 Chamfer wrong 1864 Crazing, cracks 1991 Wrong shape 2004 Wrong PD 1895 Spots and bubbles 1917 Wrong height 1885 Right shape - big 1875 Lost in lab 1886 Spots/bubble - intern 1935 State the hypotheses.H0: Each defect type in the same proportion.Ha: Each defect type in the same proportion. Calculate the χ2 test statistic. Round expected values to two decimal places. Round χ2 to three decimal places.χ2 = Calculate the p-value. Round to four decimal places.p-value = State your decision.Since p-value 0.05,…arrow_forward
- A histogram titled "20 Busiest North American Airports" has a horizontal axis labeled "Total Passengers (Millions)" and a vertical axis labeled "Frequency" with values from 0 to 10. The histogram has 8 bars. Each bar is associated with a label and an approximate value as listed below. Frequency 10 O 0 7 02 8 3 30-39.9 20 Busiest North American Airports 40-49.9 50-59.9 Total Passengers (Millions) What is the lowest frequency value? 60-69.9 70-79.9 80-89.9 90-99.9 100-109.9arrow_forwardMake a chi square and evaluate the data statistically. Also breifly explain the results.arrow_forwardA company cl mean monthl E. Ho: H Haarrow_forward
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