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    ClairLinx Wireless, a start-up cell phone company, has divided its market of potential customers into three major groups: single, working; married, working; and retired. ClairLinx surveyed potential customers and asked each, "Of the following, which do you consider to be the most important feature in a cell phone service plan: free nights and weekends, free long distance and roaming, or free calls to customers with the same company?"

    Each of the potential customers in the survey was categorized according to the service plan feature she considers most important and the customer group in which she appears. The data are summarized in the contingency table below. In the cells of the table are the respective observed frequencies, and three of the cells also have blanks. Fill in these blanks with the frequencies expected if the two variables, type of potential customer and choice of service plan feature, are independent.
    Round your responses to at least two decimal places.
    Answer the Blanks.
    Choice of service plan feature

    Free calls to other customers/ Free nights and weekends/ Free long distance/roaming/ Total

    Type of potential I Single, 26 47 73 = 146
    Customer: I working (blank) (blank)
    I
    I Married, 48 55 103 = 206
    I working
    I
    I Retired 31 44 73 = 148
    I (blank)
    I
    I Total = 105 146 249 500

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    https://brainmass.com/statistics/frequency-distribution/clairlinx-wireless-13692

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    Solution Summary

    ClairLinx Wireless, a start-up cell phone company, has divided its market of potential customers into three major groups: single, working; married, working; and retired. ClairLinx surveyed potential customers and asked each, "Of the following, which do you consider to be the most important feature in a cell phone service plan: free nights and weekends, free long distance and roaming, or free calls to customers with the same company?"

    Each of the potential customers in the survey was categorized according to the service plan feature she considers most important and the customer group in which she appears. The data are summarized in the contingency table below. In the cells of the table are the respective observed frequencies, and three of the cells also have blanks. Fill in these blanks with the frequencies expected if the two variables, type of potential customer and choice of service plan feature, are independent.
    Round your responses to at least two decimal places.
    Answer the Blanks.
    Choice of service plan feature

    Free calls to other customers/ Free nights and weekends/ Free long distance/roaming/ Total

    Type of potential I Single, 26 47 73 = 146
    Customer: I working (blank) (blank)
    I
    I Married, 48 55 103 = 206
    I working
    I
    I Retired 31 44 73 = 148
    I (blank)
    I
    I Total = 105 146 249 500

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