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Discuss what satisfying assumption 1-3 for regression inferences by the variables under consideration would mean. An article examined the relationship between investments in mutal fund portfolios and their associated tax efficiencies. The following table shows percentage of investments in energy securities (x) and tax efficiency (y) for 10 mutal fund portfolios.
X=3.1, 3.2, 3.7, 4.3, 4.0, 5.5, 6.7, 7.4, 7.4, 10.6.
Y=98.1, 94.7, 92.0, 89.8, 87.5, 85.0, 82.0, 77.8, 72.1, 53.5.
In part b, sample have greater variability than part a, but sample sizes are unchanged. How does larger variability influence size of standard error for sample mean?
Assume the standard deviation of the distribution is 2.5pounds, what is the probability that the mean of a sample of 55 families is between 17 and 18 pounds.
a chess tournament has 10 competitors of which 3 are russian 5 are french and 2 are english. if the tournament result
The Stroop task is when color words are printed in the wrong color; for example, the word red might be printed in the color blue.
in a different regression analysis 40 of the variance was explained. the sum of squares total is 1000. what is the sum
Deductible amount and limits of liability, are standardized. The sample information is reported below. At the .10 significance level, can we conclude that there is a difference in the amounts quoted?
Identify the sensitivity ranges for the profit of a sausauge biscuit and the amount of saisage available. Explain these sensitivity ranges
what is the expected number of claims by males under 25? what is the standard deviation of the distribution. (How to show on excel using binodist formula).
The independent variable observed, and y, the independent variable predicted) and are assumed to be normally distributed with mean = 0 and 2 variance how good is the linear fit?
Suppose a baseball player had 211 hits in a season. In the given probability distribution, the randon variable X represents the number of hits the player obtained in a game. Compute and interpret the mean of the random variable x.
Can you provide an example using your own data set (two related and unrelated variables) of at least twenty numbers each and apply the formula of correlation. Determine the correlation of each of the two sets of data.
The membership for the club this year isobserved to be 14 freshman, 19 sophomores, 51 Juniors and 16Seniors. At 95% level of confidence, test the advisors belief..
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