Explain the Steps you Took to Find the Percentile - Statistics Assignment Help

Assignment Task:

Task:

#1 Given the following values of the mean and median, state the likely shape of the distribution:(a) mean = 4, median = 4               __Normally distributed_____________(b) mean = 12, median = 2              Positively skewed_______________(c) mean = 8, median = 18              _Negatively skewed______________(d) mean = 6, median = 14              Negatively skewed_______________(e) mean = 10, median = 3              _Posiively skewed______________(f) mean = 8, median = 8                _Normally distributed______________
#2.  IQ scores have a mean of 100 and a standard deviation of 15. What percentile corresponds to an IQ score of 115? Explain the steps you took to find the percentile.

#3.  Which measure of central tendency would you use for the following variables (mean, median or mode). Explain your choice.Gender: _______________________________________________________Class rank at a college: __________________________________________________Age of high school students: ________________________________________A skewed income distribution (90% with incomes under $150K; a few with incomes of several million): ____________________________________________________Use SPSS and the data file found in syllabus resources (DATA540.SAV) to answer the following questions.  Round your answers to the nearest dollar, percentage point, or whole number.    #4.  What is the mean annual income (INC1) of the participants?
$43,282
$72,133 
$47,113
$34,282
 #5.  What percent of the participants are married (RELAT)? 
28%
33%
51%
59%
#6. What is the modal level of relationship happiness (HAPPY)?
Mixed
Happy
Very Happy
Cannot be determined
#7.  What is the median income of the participants’ partners (INC2)?
$24,212
$28,945
$32,000
$48,975
 #8. What percent of the participants are age 51 or older?
4%
5%
7%
10%
 

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