Statistics question and answers for January 20, 2024
- Q A researcher conducts an experiment to examine the differences in college costs in Illinois and New York Using StatCrunch dataset State College Costs compare and college costs between the Illinois...
- Q 2 The different types of data Suppose you have the following data set which shows information about the inflation rate and gross domestic product GDP rate for the same group...
- Q Suppose there is a disease certain to impact exactly 5 of a population and that each member of the population is equally likely become infected Treatment for individuals who are...
- Q 1 The value of insurance Suppose your classmate Roby is faced with the following decision they either receive 6 000 with certainty or a 50 50 chance of receiving 3...
- Q An article in the June 10 2002 issue of the Archives of Internal Medicine reported on a study of the effectiveness of nicotine lozenges to quit smoking Smokers who participated...
- Q Reese s Pieces candies and asked to record the color of each candy a What are the observational units Reese s Pieces Candy b What is the variable Select c...
- Q Using the Child Development dataset in the Math 12 group in StatCrunch construct 2 boxplots using weight age 9 variable for each males and females Compare the 2 boxplots Choose...
- Q Using the Class Seating vs Grade data set in the Math 12 group in StatCrunch E create a graph and determine if females have a significantly higher GPA than males...
- Q This boxplot shows the distribution of backpack weights for a sample of elementary schooll children What is the interquartile range 5 10 15 20 25 30 35 40 O about...
- Q You see a classmate in front of the art building occasionally stopping students and asking them questions He happens to stop you and you ask what he s doing He...
- Q In 1912 the RMS Titanic a British passenger ship sank in the North Atlantic Ocean after colliding with an iceberg Historians do not know the exact passenger list so the...
- Q Assume that the following histograms are drawn on the same scale III II O Histogram I O Histogram II O Histogram III IV Which one of the histograms has a...
- Q Which histogram shows a distribution of exam scores on an easy exam I O Histogram I O Histogram II O Histogram III O Histogram IV 111 IV 11
- Q The mean height for females is 64 inches with a standard deviation of 2 inches What is the shortest height that is still considered normal
- Q During the last presidential election CNN conducted an exit poll in which specific polling stations were randomly selected and all voters were surveyed as they left the premises Identify the...
- Q A student conducted a survey on male and female driving habits by randomly selecting 25 males and 25 females as they left campus Identify the sampling method used O Stratified...
- Q The mean height for females is 64 inches with a standard deviation of 2 inches What is the probability of one randomly selected female having a height between 60 inches...
- Q Random assignment is used to eliminate confounding variables by making the groups similar through randomization of the groups True or False O True O False
- Q Observational studies are designed to be able to determine cause and effect True or False O True False
- Q Which of the following is an example of a census O Survey students about the college class schedule by randomly selecting 500 from the college s enrollment records O To...
- Q Hospital floors are usually bare tiles instead of carpet Carpets will decrease noise but might increase germ growth To study this researchers installed carpet in 8 of 16 hospital rooms...
- Q Given the graph of the normal curve shown below what is the mean standard deviation f x 0 081 0 06 0 04 0 02 10 15 ta 8 30...
- Q Here is a passage from a study published by the National Highway Traffic Safety Administration in 2007 The National Occupant Protection Use Survey NOPUS is the only probability based survey...
- Q The incubation period for the eggs of a House Wren has a normal probability distribution with a mean time of 336 hours and a standard deviation of 3 5 hours...
- Q Based on the table what is the probability that a coin toss ends up with a head Round to 1 decimal place P H Frequency distribution for a coin toss...
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