One of Strunk and White’s rules is to “Write with nouns and verbs.”   What does that mean?

Since the Fair Labor Standards Act was passed in 1938, the standard work week in the United States has been 40 hours. Suppose that this data set on StatCrunch shows the number of hours worked in a week for a random sample of 50 U.S. workers. Do the data provide evidence that the true mean number of hours worked is different than 40 hours? State the null and alternative hypotheses for this situation. 

Select which of the following statement(s) is/are true about hypothesis test. Note: there may be more than one true statement.

Using question 5, compute the 95% confidence interval for the unknown population parameter, the true mean number of hours worked by U.S. workers. Write the lower and upper bounds of your confidence interval to one decimal place.

Using question 5, state the summary statistics (data from the sample – sample mean, sample standard deviation, sample size, and degrees of freedom).

True or False? Clearly explain your answer.  If we do not reject a null hypothesis at α = 0.01, we also do not reject the null hypothesis at α = 0.05?

Find the present worth of the new machine. The MARR is 12% per year/compounded annually.     New Nachine     First cost, $ −40,000     Annual operating cost, $  −5,000     Annual repair cost, $  −1,000     Overhaul after 5 years, $  −2,000     Salvage value, $   10,000     Life, years         10    

Which of the following is sister to B in this phylogeny?

Compare and contrast horizontal gene transfer and introgression.

You are a college professor running a systematics lab.  Your grad student found a paper in the literature reporting the phylogeny of her favorite group of organisms, based on gene A.  To verify the published phylogeny, she sequences gene B and gets a slightly different phylogeny.  What are four possible explanations for the difference between her result and the published one?