When comparing the mean of two dependent samples,we are interested in only one variable: the difference between measurements for each person or object.
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Q9: An important factor in choosing between the
Q10: The z-test requires no assumptions about the
Q11: When the population standard deviations are
Q12: The F distribution is the sampling
Q13: A typical example of independent samples occurs
Q15: Unlike the t distribution,the exact shape of
Q16: When the population standard deviations are unknown
Q17: If we wish to examine the before-and-after
Q18: If we wish to compare the before-and-after
Q19: A typical example of dependent samples occurs
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