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Question: The professor swims. Professor Moore swims 2000 yards regularly in a vain attempt to undo middle age. Here are his times (in minutes) and his pulse rate (in beats per minute) after swimming for 23 sessions in the pool:
(a) Make a scatterplot. (Which is the explanatory variable?)
(b) Is the association between these variables positive or negative? Explain why you expect the relationship to have this direction.
(c) Describe the form and strength of the relationship.
Find the probability that the mean weight of 5 Muesli bars is less than 30g? Find the probability that the mean weight of 7 Muesli bars is less than 30g? What can you conclude about the probability when the sample size increases? Use your answers to ..
What is the Bonferroni adjustment? What would the Bonferroni adjustment be for a study with four groups for which a researcher decided to use t-tests?
Create a bar graph using two different colors to represent the male and female categories. Use age to categorize and graph the average height.
Discuss how the concept of behavioral variability relates to the research questions that interest behavioral researchers.
Determine the value of correlation coefficient between these 2 variables?
The following histogram shows the scores on the first exam for a statistics class. How many students took the exam? What is the class interval? What is the class midpoint for the first class
If the population standard deviation is σ = 20 is the 6 point effect large enough to be statistically significant? Use the two - tailed test with α = .05
This is a question pertaining to multivariate contingency analysis and partial correlation coefficientSet .05 as the significance level, what is the partial correlation coefficient and the t ratio?
In this context, describe the Type I error possible. How might such an error impact ABI Insurance? In this context, describe the Type II error possible. How might such an error impact ABI Insurance?
Plot the data with SAT on the x axis and ACT on the y axis. Describe the overall pattern and any unusual observations.- Find the least-squares regression line and draw it on your plot. Give the results of the significance test for the slope.
In a random sample of 10 reduced fat chocolate chip cookies, the sample mean for the number of chocolate chips was 17.6. Regular chocolate chip cookies have a mean number of 20 chocolate chips. The population standard deviation for the reduced f..
In a particular manufacturing plant, two machines (A and B) produce a particular part. One machine (B) is newer and faster. In one five-minute period.
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