Question
Please help with the below, also can you show any formula's in excel. Thank You A report by the NCAA states that 57.5% of football
Please help with the below, also can you show any formula's in excel. Thank You
A report by the NCAA states that 57.5% of football injuries occur during practices. A head trainer claims that this is too high for his conference, so he randomly selects 36 injuries and finds that 18 occurred during practices.
a. Is the above information sufficient for you to be completely agree with the head trainer, that the percentage of football injuries occur during practices is less than 57.5%? Why or why not?
b. In establishing a statistical hypothesis testing of this situation, give the required null and alternative hypotheses for such a test, if it is desired that the percentage of football injuries occur during practices is less than 57.5%.
H0:
H1:
c. Based on your answer in part b, should you use a right-tailed, a left-tailed, or a two-tailed test? Briefly explain how one determines which of the three possibilities is to be used.
d. Describe the possible Type I error for this situation--make sure to state the error in terms of the percent of football injuries occur during practices.
e. Describe the possible Type II error for this situation--make sure to state the error in terms of the percent of football injuries occur during practices.
f. Determine the appropriate critical value(s) for this situation given a 0.05 significance level.
g. Determine/calculate the value of the sample test statistic.
h. Detemine the P-value.
i. Based upon your work above, is there statistically sufficient evidence in this sample to support that less than 57.5% injuries occur at practice for this conference?Briefly explain your reasoning.
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