The overall research question for this task is “How does the proportion of all litter on beach one that is plastic compare to the proportion of all litter on beach two that is plastic?” The confidence interval is (0.277,0.451) the sample proportion for plastic litter from first beach is 0.386, sample size of first beach is 448 and the the sample proportion for plastic litter from second beach is 0.75,sample size of second beach is 132 Write one sentence that interprets the confidence interval for difference in proportions in terms of a comparison.
Question
The overall research question for this task is “How does the proportion of all litter on beach one that is plastic compare to the proportion of all litter on beach two that is plastic?”
The confidence interval is (0.277,0.451)
the sample proportion for plastic litter from first beach is 0.386, sample size of first beach is 448 and the the sample proportion for plastic litter from second beach is 0.75,sample size of second beach is 132
Write one sentence that interprets the confidence interval for difference in proportions in terms of a comparison.
Solution
The confidence interval of (0.277, 0.451) suggests that we are 95% confident that the proportion of plastic litter on beach two is between 27.7% and 45.1% higher than the proportion of plastic litter on beach one.
Similar Questions
For this question, you need to evaluate a claim by considering whether it is supported by a confidence interval. Copy the confidence from Q3 Write down the name of the beach you identified as having the higher sample proportion of plastics from Q1. Write one sentence evaluating a claim that “The proportion of all litter on this beach that is plastic is higher than that of the other beach” by considering whether it is supported by the confidence interval. Construct your answer using the following structure. Copy and paste it into the template and complete your answers accordingly. The confidence interval from Q2/3: The beach with the higher sample proportion from Q1: One sentence evaluation of whether the claim can be made:
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