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9.2 A single population mean using the student t distribution  (Page 5/21)

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  • Card 5 / 21:
    In six packages of “The Flintstones® Real Fruit Snacks” there were five Bam-Bam snack pieces. The total number of snack pieces in the six bags was 68. We wish to calculate a 96% confidence interval for the population proportion of Bam-Bam snack pieces.

    Define the random variables X and P ′ in words.Which distribution should you use for this problem? Explain your choiceCalculate p ′.Construct a 96% confidence interval for the population proportion of Bam-Bam snack pieces per bag. State the confidence interval. Sketch the graph. Calculate the error bound.Do you think that six packages of fruit snacks yield enough data to give accurate results? Why or why not?

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Source:  OpenStax, Introduction to statistics i - stat 213 - university of calgary - ver2015revb. OpenStax CNX. Oct 21, 2015 Download for free at http://legacy.cnx.org/content/col11874/1.3
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