A report just came out that stated that 24.4%  of all Americans say that vanilla is their favorite ice cream,  22.7% say that chocolate is their favorite, 8.4% favor butter pecan, 9.1% favor strawberry, and the rest have other favorites. An ice cream shop owner thinks that her customers are not like the rest of America.  The table below shows the results of 995 of her patrons' ice cream selections. What can be concluded at the αα = 0.05 significance level? Complete the table by filling in the expected frequencies.  Round your answers to the nearest whole number.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 12CYU
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A report just came out that stated that 24.4%  of all Americans say that vanilla is their favorite ice cream,  22.7% say that chocolate is their favorite, 8.4% favor butter pecan, 9.1% favor strawberry, and the rest have other favorites. An ice cream shop owner thinks that her customers are not like the rest of America.  The table below shows the results of 995 of her patrons' ice cream selections. What can be concluded at the αα = 0.05 significance level?

  1. Complete the table by filling in the expected frequencies.  Round your answers to the nearest whole number.
    Outcome Frequency Expected Frequency
    Vanilla 248

     

    Chocolate 230  
    Butter Pecan 79  
    Strawberry 101  
    Other 337  
  2. The degrees of freedom = _____
  3. The test-statistic for this data = _____ (Please show your answer to three decimal places.)
  4. The p-value for this sample = _____(Please show your answer to four decimal places.) 
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