An automobile company hired an advertising agency to survey its customers to find out which brand of tire they preferred for the
ir cars. The results of the survey are displayed in the table.
Which measure(s) of central tendency represents the most popular brand of tire?
A. the mean
B. the median
C. the mode
D. either the mean or the median
Which measure(s) of central tendency represents the most popular brand of tire?
A. the mean
B. the median
C. the mode
D. either the mean or the median
2 answers:
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Answer:
And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution and for this case we know that the distribution is given by:
And the standard error would be:
And replacing we got:
Step-by-step explanation:
For this case we know the population deviation given by:
And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution and for this case we know that the distribution is given by:
And the standard error would be:
And replacing we got: