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Suppose we have five independent groups (or samples), each of size 9. How many degrees of freedom do we have for the within groups sum of squares in the ANOVA?
Answer
4
40
44
45
A month of sales data are collected on sales of different types of computer products Run the t-tests to determine:
Suppose we wish to test the null hypothesis that there are no differences among the proportion of men and women who developed a rash. Evaluate the P-value of the chi-square test of this hypothesis.
Use x for the number of bats and y for the number of balls made per week. The number of work-hours avaiable for construction and finishing is fixed.
answer the following questionsa in 2004 statistics exam scores followed a normal distribution with a mean of 70 points
Let μ be the hourly wage (excluding tips) for workers who provide hotel room service in a large city. A random sample of a number (more than 30) of such workers yielded a 95% confidence interval for μ of $8.46 to $9.86 using the normal distributio..
At a certain college, there were 700 science majors, 100 engineering majors, and 500 business majors. If one student was selected at random, the probability that they are an engineering major is?
a fair coin is repetitively tossed 2n times n is very large. what is the probability for the number of heads to be in
assume the distribution of heights among all 15 year old boys is normally distributed with mean 67 and standard
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imagine a very large connected graph that has two odd vertices and 398 even vertices.a does a euler path exist
from past experience it is known that 90 of one-year old children can distinguish their mothers voice from the voice of
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
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