The management team decided that they wanted a really good test to decide whether to eliminate the night shift for safety reasons, so they were able to track down seven employees who had spent significant time on both the day and night shift to see how many hours they slept on each shift. Since this data eliminates the sleep differences based on the individual, management thinks it’s the best way to determine how the night shift affects sleep patterns despite the small sample size. Given the table of results below, can we say with 99% confidence that workers on the […]
If you were to use confidence intervals to help make a decision in life situation. Include a description of the decision, how the interval would
If you were to use confidence intervals to help make a decision in life situation. Include a description of the decision, how the interval would impact the decision, and how data could ideally be collected to determine the interval.
Alumni GivingJoseph Randal has just been named the director of alumni relationships at a local university. Alumni donations are an important source of revenue for colleges and universities. If adminis
Alumni Giving Joseph Randal has just been named the director of alumni relationships at a local university. Alumni donations are an important source of revenue for colleges and universities. If administrators could determine the factors that could lead to increases in the percentage of alumni who make a donation, they might be able to implement policies that could lead to increased revenues. Research shows that students who are more satisfied with their contact with teachers are more likely to graduate. As a result, one might suspect that smaller class sizes and lower student/faculty ration might lead to a higher percentage […]
In a history class, students take a weekly multiple choice quiz consisting of 6 questions, each with 4 possible answers.
In a history class, students take a weekly multiple choice quiz consisting of 6 questions, each with 4 possible answers. If a student randomly guesses at the answer to each question for every quiz, then what is the mean number of correct answers the student will get on each quiz? Round your answer to one decimal place as necessary. For example, 4.5 would be a legitimate entry.
The medical director and chief nursing officer at your hospital have agreed to institute a new safety protocol for diabetes who take oral
The medical director and chief nursing officer at your hospital have agreed to institute a new safety protocol for diabetes who take oral hypoglycemics and levofloxacin based on a study that reports statistically significant increased risk for hyperglycemia in this patient population. You know this means: 1) the p-value was greater than alpha in the study 2) a type I error is going to be made 3) the safety protocol is an example of a hypothesis test 4) the hospital leadership has concluded that the study result are clinically significant
