K1: I want to know whether snoring rates differ for those under and over 30 years old. The data are from a random sample of 1010 U. S. adults surveyed in the 2002 Sleep in America Poll. Of
these, 995 responded to the question abfut snoring, indicating whether or not they had snored at
least a few nights a week in the past year. In the younger age group, 48 snored and 136 did not. In
the older group, 318 snored and 493 did not. Construct a 96% confidence interval to estimate the
difference in the snoring rates of the two age groups. You may want to do your work on paper
and scan in the document. Be sure your name and id are on the paper.

1. the or shop owner initiates the repair order. a. service manager b. foreman c. customer d. service consultant student a incorrect reference: section 5.1 2. the repair order is routed to the who computes the bill based on information supplied by the technician and shop policy. a. service manager b. foreman c. service consultant d. accountant student c incorrect reference: section 5.1 8. is used in windshield washer fluid to prevent freezing and dissolve bugs. a. propanol b. brake fluid c. alcohol-additive (methanol) d. ethylene glycol student a incorrect reference: section 5.3 9. all of these acts are performed when doing an oil and filter change except a. lifting the vehicle to your best working height. b. putting the drain pan under the oil-drain plug. c. using safety glasses with side shields. d. loosening the drain plug with a screwdriver. student c incorrect reference: section 5.2 10. coolant should be clear, not clouded from contamination, and should feel a. slippery. b. hot. c. cool. d. sticky. student c incorrect reference: section 5.3 11. the device in the above photo is used to check the coolant a. level. b. acid level. c. temperature. d. thickness. student c incorrect reference: section 5.3 14. some vehicles require the use of a to check the level of the fluid. a. scan tool b. micrometer c. feeler gauge d. manometer student d incorrect reference: section 5.3 17. the type of oil used in a vehicle is determined by the oem specifications and the oil which is listed in the owner’s manual, online service information, and on the oil fill cap. a. pressure b. viscosity c. density d. type student c incorrect reference: section 5.2 18. one of the first jobs a new technician does in the shop is a. tire service. b. transmission work. c. lubrication service. d. front-end work. student a incorrect reference: section 5.2 plzzz