How many hours a week, on average, do twelfth grade students hang out with friends? You think it is around 5 hours a week, but your friend thinks it is different than that.  A random sample of 18 twelfth grade students is taken.  The sample mean is 9.28 hours with a sample standard deviation of 5.55 hours.  A boxplot of the data does not show strong skewness or outliers.  The hypotheses is as follows: : μ=5 : μ≠5   a. What is the parameter?  Fill in the bank. ____________, the ____________ hours a week twelfth grade students hang out with friends.  [1]   b. The test statistic is 3.27, what is the p-value? [2]   c. In order to make an inference about the population, which assumption is necessary for the data to be representative of the population? [3]   d. For this significance test, you reject Ho and find significant evidence that the true mean hours a week twelfth grade students hang out with friends is different than 5 hours.  What type of error could you have made? [4]   e. Given the following two statements: I. It was reasonable to use t procedures for this significance test. II. The 95% confidence interval for this data will not include 5 hours. Which of the statements are true? [5]  

Which of the following solutions would have the highest concentration of H+?

Under anaerobic conditions, pyruvate is converted into lactate by a process called __________.

A molecule that loses high-energy electrons during a reaction is ___________.

If a solution has a pH that is greater than 7, it is considered _______.

When an enzyme is working as fast as it can because its active site is continually refilled with substrate, this condition is referred to as __________.

Which of the following is a protein that acts as a catalyst for biochemical reactions?

For physiologists, the terms “equilibrium” and “homeostasis” are synonymous or equivalent.

NADH and FADH2 are oxidized by this metabolic pathway.

A young woman’s lab values come back with a potassium level of 7.0 mEq/L. Examination reveals a responsive, gravid, interactive patient complaining of contractions. What is the most likely source for this result?