A chi-square test for goodness of fit is used to examine the…
A chi-square test for goodness of fit is used to examine the distribution of individuals across three categories, and a chi-square test for independence is used to examine the distribution of individuals in a 2-2 matrix of categories. Which test has the larger value for df?
Read DetailsA research study compares different laundry detergents to se…
A research study compares different laundry detergents to see which cleans clothes the best. Three white socks are soaked in mud and then left to sit out for one hour. After the hour is up each sock is washed by itself with a different brand of laundry detergent. The socks are then compared to see which is the whitest. What is the independent variable?
Read DetailsA kinesiology professor wants to conduct a hypothesis test t…
A kinesiology professor wants to conduct a hypothesis test to compare a sample of this year’s final exam scores to a sample of last years to see if the COVID-19 circumstances affected scores. What type of hypothesis test should he use?
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