question archive According to the US Bureau of Labor Statistics, there was a 12
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According to the US Bureau of Labor Statistics, there was a 12.4% incidence of workplace injury in 2016 in the private sector. If the workplace accident rate is above 12.4%, the company will increase inspections and implement additional safety training. For this data, is there statistical support to increase inspections and implement additional safety training? Use the entire dataset and the work_accident variable where 0 = no accident and 1 = an accident occurred.
1. Is work_accident a qualitative or quantitative variable?
2. Graph the accident at work data with an appropriate graph and calculate statistics appropriate for this type of data.
3. Conduct the appropriate hypothesis test using the following steps. a. Determine the null and alternative hypotheses. b. Use a significance level of α = 0.05. c. Validate the assumptions of the hypothesis test, identify the appropriate test statistic, and compute its value. d. Determine the P-value. e. Make a decision to reject or fail to reject H0. f. State the conclusion in terms of the original problem.
4. Based on our conclusion from the previous step, what type of error could we have just made (Type I or Type II)? State the practical implications of this error
data is found at - stat.hawkeslearning.com then go to data sets then click on employee satisfaction under additional data sets