Run the appropriate test at 005 make sure to 1 give the

Reference no: EM13623201

An investigator conducts a study to investigate whether there is a difference in mean PEF in children with chronic bronchitis as compared to those without. Data on PEF are collected and summarized below. Based on the data, is there statistical evidence of a lower mean PEF in children with chronic bronchitis as compared to those without? Run the appropriate test at ?=0.05. Make sure to 1. Give the null and alternative hypotheses, 2. Calculate the test statistic, and 3. Give the conclusion (including a comparison to alpha or the critical value) to receive full credit.

Group	Number of Children	Mean PEF	Std Dev PEF
Chronic Bronchitis	25	281	68
No Chronic Bronchitis	25	319	74

Reference no: EM13623201

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