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A student wants to assess whether her dog Muffin tends to chase her blue ball more often than she chases her red ball. The student rolls both a blue ball and a red ball at the same time and observes which ball Muffin chooses to chase. Repeating this process a total of 196 times, the student finds that Muffin chased the blue ball 102 times and the red ball 94 times.
1. What are the observational units in this study?
2. What is the variable in this study?
3. Calculate the test statistic and p-value.
You wish to do a community needs assessment survey of a community to find out how much office space is needed by professionals in the community.
suppose thatnbspfnbspx nbspe-x-7.4nbspfor 7.4 ltnbspxnbspandnbspfnbspx 0 fornbspxnbsp? 7.4. determine the following
What are the five steps in the hypothesis testing procedure, what does each step represent, what are the advantages and disadvantages of using a hypothesis testing procedure?
a 12-bit ad converter has an input range of plusmn 10 v and is connected to an input amplifier with a programmable gain
Assuming the tires are selected at random from among all tires being produced, how many tires in the shipment of 3000 are expected to have a lifetime that is less than 35,000 miles?
The results of a district spelling bee for both girls and boys are normally distributed. the 60 girls have a mean score of 71 with a standard deviation of 6, while the 50 boys have a mean score of 66 points with standard deviation of 5 points.
Seven students have applied for merit scholarships. This year 3 merit scholarships were awarded. If a random sample of 3 aplications (from the population of 7) is selected,
Probability that a home has a swimming pool is .38. What is the probability that a randomly selected home in the city has an attached garage and a swimming pool?
you take a sample of 22 from a population of test scores and the mean of your sample is 60. a you know the standard
for problems 1-5 standardize the value according to the given average and sd. 1. x 10 average 5 and sd 2. 2. x 73
assume that a procedure yields a binomial distribution with a trial repeated n times. use the binomial probability
Construct a 99% confidence interval on the difference of the average ages for the viewers of the two TV programs. How can you interpret this interval?
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