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In a large Midwestern university (the class of entering freshmen is 6000 or more students), an SRS of 100 entering freshmen in 1999 found that 20 finished in the bottom third of their high school class. Admission standards at the university were tightened in 2000. In 2001, a SRS of 100 entering freshmen found that 10 finished in the bottom third of their high school class. Is there evidence that the proportion of freshmen who graduated in the bottom third of their high school class in 2001 has been reduced, as a result of the tougher admission standards adopted in 2000, compared to the proportion in 1999? Use a significance level of 1% Be sure to be clear what your variables mean. a) State the null and alternative hypotheses. Ho:____________________ (in symbolic form) Ha:_____________________(in symbolic form if appropriate)    

The boxplots below show temperatures for six cities. Each city’s boxplot was made from 12 temperatures: the average monthly temperature over a period of years. Answer the following questions using your best approximation of numerical values and using appropriate units of measurement. b) What is the IQR for the temperatures recorded in Boston? Show your work, and approximate when needed:

Suppose the null hypothesis is that the particular high school a person goes to and whether or not that person goes to college are independent of each other. Suppose the alternative hypothesis is that the particular high school a person goes to and whether or not that person goes to college are dependent of each other. The P-value for the test is 0.071. For each of the following determine if it is a valid or invalid interpretation of the P-value.   b.   We will need to check if the data is random and that n > 30.

Approximately how much does the brain weigh in pounds in an average human?

What does the term Vagus (referring to cranial nerves) mean ?

Which of the following hormone-signaling pairs is correctly matched with its mechanism?

An 80-year-old patient has a serum creatinine level within normal limits, but estimated glomerular filtration rate (eGFR) is significantly reduced. Which of the following best explains this discrepancy?

When using substrate as a reagent (enzyme from patient), what substrate concentration is needed and what type of enzyme kinetics are produced?

A patient with nephrotic syndrome is being treated with a highly protein-bound drug. Despite a normal total drug concentration, the patient shows signs of toxicity. Which of the following best explains this finding?

A clinician is monitoring a patient on valproic acid therapy. The patient has normal total drug levels but continues to experience seizures. Which of the following should be considered next?