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    Basic Statistical problems

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    1)the following data:
    Table 1C Below
    Manufacturer
    Sales (in Millions)
    Bosch-Siemens $ 3,200
    Electrolux $ 2,100
    General Electric $ 6,350
    Philips $ 1,800
    Maytag $ 2,480
    Whirlpool $ 8,950
    Matsushita Electric $ 2,180
    Total $ 27,060
    Represents the annual worldwide sales ( in millions of dollars) of appliances by manufacturer for a given year. On the basis of the results above, which three manufactures collectively sell the most appliances in terms of sales on an annual basis? What is their collective share of the market? Explain

    2) The following raw data is the result of selecting a random sample of new Ford Escorts and testing these cars for fuel efficiency (results are in miles per gallon: Here is the excel descriptive statistics.
    Table 2A Below
    Descriptive statistics
    Miles per Gallon
    Count 18
    Mean 36.350
    sample variance 3.037
    sample standard
    deviation 1.743
    Minimum 33
    Maximum 38.2
    Range 5.2
    Skewness -0.735
    Kurtosis -0.739
    coefficient of variation
    (CV) 4.79%
    1st quartile 35.225
    Median 36.500
    3rd quartile 37.800
    interquartile range 2.575
    Mode 37.800
    Table 2A Continued
    Stem and Leaf plot for Miles per Gallon
    stem unit = 1
    leaf unit = 0.1
    Frequency Stem Leaf
    2 33 0 2
    2 34 2 3
    2 35 1 6
    4 36 3 4 5 5
    5 37 6 8 8 8 9
    3 38 0 1 2
    18

    Part A; discuss the property of variation for this data. Give specific ranges together with the percentage of data we'd expect to fall within that range. Also, what are the quartiles and what do they tell us?

    Part B
    Is the data skewed? If so how?

    Part C
    If you were advising Ford dealers on what to tell customers about fuel economy in the ford Escort, what would y ou tell them? Be specific and justify.

    3)The following table:
    Table 3C Below
    East South Midwest West Totals
    Hospitalization 102 98 39 62 301
    Physician's Visit 263 514 120 351 1248
    Outpatient Treatment 100 226 65 99 490
    Totals 465 838 224 512 2039
    Gives the number of claims at a large insurance company by kind and geographical region.
    Part A
    Refer to table, if a bill is chosen at random, what is the probability that it is either from the Midwest or from the south?

    Part B
    Refer to table, given that the bill is from the east, what is the probability that it is for a Physicians Visit?

    4)The probability of obtaining a home equity loan from United Bank is 0.40. A random sample of 10 loan applications is selected. Find the probability that at least 7 will get a loan.
    The appropriate binomial table is: Table 4A Below

    Binomial Distribution
    10 n
    0.4 p
    cumulative
    X p(X) probability
    0 0.00605 0.00605
    1 0.04031 0.04636
    2 0.12093 0.16729
    3 0.21499 0.38228
    4 0.25082 0.63310
    5 0.20066 0.83376
    6 0.11148 0.94524
    7 0.04247 0.98771
    8 0.01062 0.99832
    9 0.00157 0.99990
    10 0.00010 1.00000

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    https://brainmass.com/statistics/stemplot/basic-statistical-problems-159158

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    Solution Summary

    Step by step method for solving some basic statistical problems are included here.

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