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What would you do if your sample size is smaller than 100? Would you continue with your research and what is the best way to approach this issue?
Specify the competing hypotheses to determine whether the median of Population 1 is greater than the median of Population 2.
You wish to determine if teaching statistics with definitional formula changes students' conceptual understanding of psychological statistics.
What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can't we just make our decisions by the sample value?
singer suggests that although the right to sell blood does not threaten the formal right to give blood it is
in a university statistics course a correlation of -0.8 was found between numbers of classes missed and course grade.
A researcher hypothesizes that voters who identify themselves as being part of the 'Tea Party' are more likely to believe people have the right to wear guns
Using Coefficient of Variation determine in which year do the ages show a more dispersed distribution? Show your complete work and support your answer.
(a) State the null and the alternative hypothesis in this case. Define (in words) the parameter of interest in this case. A total of 12 mice attempted the maze while loud rap music was being played. The mean and standard deviation of the times to c..
In the U.S., there are two sources of national statistics on crime rates: (i) the FBI's Uniform Crime Reporting Program, which publishes summaries on all crimes reported to police agencies in jurisdictions covering virtually 100% or the population..
Banner Mattress and Furniture Company wishes to study the number of credit applications received per day for the last 300 days.
When water taxi sank in the Baltimore Inner Harbor, an investigation revealed that the safe passenger load for water taxi was 3500 lbs. It was also noted that the mean weight of passenger was assumed to be 140 lbs.
A basketball player makes 60% of the free throws that he attempts, except that if he has just tried and missed a free throw then his chances of making a second one go down to only 30%. What is the probability that he makes both attempts
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