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A researcher is interested in finding a 95 confidence interval for the mean number of...

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A researcher is interested in finding a 95 confidence interval for the mean number of times per day tha college students text The study included 81 students who averaged 25 9 texts per day The standard deviation was 13 6 texts Round answers to 3 decimal places where possible a To compute the confidence interval which distribution should you use t distribution z distribution b With 95 confidence the population mean number of texts per day is between and toxtr

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