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the average playing time of compact discs in a large collection is 35 minutes and the standard deviation is 5 minutesa
in a study investigating the effect of car speed on accident severity 5000 reports of fatal automobile accidents were
the us census bureau 2000 census reported the following relative frequency distribution for travel time to work for a
mobile homes are tightly constructed for energy conservation this can lead to a buildup of indoor pollutants the paper
the article taxable wealth and alcoholic beverage consumption in the united states psychological reports 1994 813-814
a student took two national aptitude tests the national average and standard deviation were 475 and 100 respectively
suppose that your younger sister is applying for entrance to college and has taken the sat she scored at the 83rd
an advertisement for the 30-inch wonder that appeared in the september 1983 issue of the journal packaging claimed that
the paper answer changing on multiple-choice tests journal of experimental education 1980 18-21 reported that for a
consider the following statement more than 65 of the residents of los angeles earn less than the average wage for that
suppose that 10 patients with meningitis received treatment with large doses of penicillin threenbspdays later
a study of the lifetime in hours for a certain brand of light bulb involved putting 10 light bulbs into operation and
an instructor has graded 19 exam papers submitted by students in a class of 20 students and the average so far is 70
the insurance institute for highway safety referenced in the previous exercise also gave bumper repair costs in a study
the accompanying data on number of minutes used for cell phone calls in 1 month was generated to be consistent with
give two sets of five numbers that have the same mean but different standard deviations and give two sets of five
the article rethink diversification to raise returns cut risk san luis obispo tribune january 21 2006 included the
the us department of transportation reported the accompanying data see below on the number of speeding-related crash
in 1997 a woman sued a computer keyboard manufacturer charging that her repetitive stress injuries were caused by the
researchers at the university of pennsylvania suggest that a nasal spray derived from pheromones chemicals emitted by
the paper lessons from pacemaker implantations journal of the american medical association 1965 231- 232 gave the
how does the speed of a runner vary over the course of a marathon a distance of 42195 km consider determining both the
data on x poverty rate and y high school dropout rate for the 50 us states and the district of columbia were used
one factor in the development of tennis elbow a malady that strikes fear into the hearts of all serious players of that
an article that appeared in usa today september 3 2003 included a graph similar to the one shown here summarizing