Question

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    1. Determine which of the following statements is descriptive in nature and which is inferential. Refer to the data below in How Old is My Fish?
    How Old is My Fish
    Average age by length of largemouth bass in new York State
    Length     8     9     10     11     12     13     14
    Age     2     3     3     4     4     5     5

    a. All 9-inch largemouth bass in New York State are an average of 3 years old.

    b. Of the largemouth bass used in the sample to make up th NYS DEC Freshwater Fishing Guide, the average age of 9-inch largemouth bass was 3 years.

    In your answer also describe and explain the difference between descriptive statistics and inferential statistics.
    Question 2

    2. Since 1981, Fortune magazine has been tracking what they judge to be the “best 100 companies to work for.” The companies must be at least ten years old and employ no less than 500 people. Below are the top 25 from the list compiled in 1998, together with each company’s percentage of females, percentage of job growth over a 2 year span, and number of hours of professional training required each year by the employer.

    Company Name     Women (%)     Job Growth (%)     Training (hr/yr)

    Southwest Airlines     55     26     15
    Kingston Technology     48     54     100
    SAS Institute     53     34     32
    FEL-Pro     36     10     60
    TDIndustries     10     31     40
    MBNA     58     48     48
    W.L.Gore     43     26     27
    Microsoft     29     22     8
    Merck     52     24     40
    Hewlett-Packard     37     10     0
    Synovus Financial     65     23     13
    Goldman Sachs     40     13     20
    MOOG     19     17     25
    DeLoitte & Touche     45     23     70
    Corning     38     9     80
    Wegmans Food Products     54     3     30
    Harley-Davidson     22     15     50
    Federal Express     32     11     40
    Proctor & Gamble     40     1     25
    Peoplesoft     44     122     0
    First Tennessee Bank     70     1     60
    J.M. Smucker     48     1     24
    Granite Rock     17     29     43
    Petagonia     52     5     62
    Cisco Systems     25     189     80

    a. Find the mean, range, variance, and standard deviation for each of the three variables shown in the list. Present your results in a table.

    b. Using your results from (a), compare the distributions for job growth percentage and percentage of women employed. What can you conclude?

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