The shape of the distribution of the time required to get an oil change at a 1515-minute oil-change facility is unknown. however, records indicate that the mean time is 16.3 minutes16.3 minutes, and the standard deviation is 3.7 minutes3.7 minutes. complete parts (a) through (c). (a) to compute probabilities regarding the sample mean using the normal model, what size sample would be required? a. the sample size needs to be greater than or equal to 30. b. the normal model cannot be used if the shape of the distribution is unknown. c. any sample size could be used. d. the sample size needs to be less than or equal to 30.

What are correct trigonometric ratios that could be used to determine the length of ln

Design an er diagram for keeping track of information about votes taken in the u.s. house of representatives during the current two-year congressional session. the database needs to keep track of each u.s. state's name (e.g., texas', new york', california') and include the region of the state (whose domain is {northeast', midwest', southeast', southwest', west'}). each congress person in the house of representatives is described by his or her name, plus the district represented, the start date when the congressperson was first elected, and the political party to which he or she belongs (whose domain is {republican', democrat', 'independent', other'}). the database keeps track of each bill (i.e., proposed law), including the bill name, the date of vote on the bill, whether the bill passed or failed (whose domain is {yes', no'}), and the sponsor (the congressperson(s) who sponsored - that is, proposed - the bill). the database also keeps track of how each congressperson voted on each bill (domain of vote attribute is {yes', no', abstain', absent'}). additional information:

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g