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1. Calculate the residual for the x, y pair ($44,491, $4,807).
2. Did the regression equation underestimate or overestimate the net income?
3. Calculate the residual for the x, y pair ($62,511, $5,028).
4. Did the regression equation underestimate or overestimate the net income?
Describe the standard normal distribution. Explain why it can be used to find probabilities for all normal distributions.
Find the z-score for each student and indicate which one has a better relative position. An Art Major earned a grade of 46 on an exam with = 50 and s = 5.
analyze the advantages and disadvantages of using a repeated-measures study or within-subjects design instead of a
question 1. what is a lsquorandom sample?question 2. explain the terms simple random sampling systematic sampling
The following data were obtained from an independent measures study. Determine if there is a significant difference between the treatments. Use a significant level of .01.
A job placement director claims that the average starting salary for nurses is $24,000. A sample of 35 nurses has a mean of $23,450 and a standard deviation of $400.
The probability that a bomber hits its target on any particular mission is 0.80. Four bombers are sent after the same target. What is the probability: they all hit the target?
543 people were selected at random from a large population. 505 of them said they had the internet installed on their
At.01 significance level, is there relationship between job pressure and age?
a standard deviation of 7.3 years. What is the 95% confidence interval estimate for the average number of years served by all Supreme Court justices?
describe the differences between correlations and regressions. can you describe situations where you would use one of
Would the mean, median, or mode of the prices of recent home sales be the best measure of central tendency and why?
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