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A professional basketball player ins averaging 21 points per game. he will be retiring at the end of this season. The team has multiple options to replace him. However, the owners feel that signing a replacement is only justified. If he can average more than 22 points per game. What would be the approporate hypotheses?
Fifty samples of size 600 were drawn from a manufacturing process and the number of defectives in each sample was counted.
According to Central Limit Theorem, how big of sample is essential to be sure sampling distribution of sample means is normally distributed.
A random sample of 11 health maintenance organizations (HMOs) was selected. For each HMO, the co-payment (in dollars) for a doctor's office visit was recorded. The results are as follows:
In Texas, 1991, the weights of babies, the mean birth weight for all babies is 3369 grams, with a standard deviation of 581 grams, (454 grams = 1 pound). Looking at a baby that weighed 16.1 lbs at birth: What would his Z-score be when compared to ..
A permutation resample for a two-sample test
Also use the regression model to predict a student's average if he/she misses 4 classes.
Does your analysis change if the term "average" refers to the mean? To the median? Explain what effect this misinformation might have on the perception of the nation's schools.
Use the Kolmogorov-Smirnov test to discover whether the distribution of location of accidents is uniformly distributed for the month of September
As the Marketing Director of Harley-Davidson, you need to determine what your customers would like in the next model. You put a survey on the Harley Web site. Is this a good frame from which to select your sample? Explain.
Here is a scatterplot of average crawling age versus average outdoor temperature six months after birth followed by a plot of the residuals versus average outdoor temperature six months after birth.
A table showing the season in which the first 36 U.S. presidents died. Research question: At alpha=0.10, Can you reject the hypothesis that presidents' deaths are uniformly distributed by season?
Identify a research question from your professional life, research interests, or everyday experience that could be addressed by this analysis.
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