Answer-C
To standardize a variable, use the following formula:
4. A variable is standardized in the sample a by multiplying by its mean b. by...
1. If OLS estimators satisfy asymptotic normality, it implies that a. they are approximately normally distributed b. they are approximately normally distributed in samples with less than 10 observations large enough sample sizes c. they have a constant mean equal to zero and variance equal to d. they have a constant mean equal to one and variance equal to o 2 In a multiple regression model, the OLS estimator is consistent if a. there is no correlation between the dependent...
Show all work please 1. Certain standardized math exams have a mean of 100 and a standard deviation of 60. Of a sample of 36 students who take this exam, what percent could you expect to score between 100 and 120? A)50 B)47.5 C)97.5 D)49.85 2.Certain standardized math exams have a mean of 100 and a standard deviation of 60. Of a sample of 36 students who take this exam, what percent could you expect to score above 120? A)2.5...
To find it's Z-score, the sample data must be shifted by subtracting the mean of the population and then rescaled by dividing by the standard deviation of the population. True False
A variable has a mean of 100 and a standard deviation of 15. Nine observations of this variable have a mean of 116 and a sample standard deviation of 12. Determine the observed value of the a. standardized version of x overbar. b. studentized version of x overbar.
11.
A variable has a mean of 100 and a standard deviation of 24. Sixteen observations of this variable have a mean of 113 and a sample standard deviation of 16. Determine the observed value of the a. standardized version of x. b. studentized version of x.
A variable has a mean of 100 and a standard deviation of 15. Nine observations of this variable have a mean of 112 and a sample standard deviation of 12. Determine the observed value of the standardized version of the mean and the studentized version of the mean.
4. Although the sample mean provides a good estimate of its population mean, sample variability tends to be biased. a. Explain what is meant by “biased.” b. How is sample variability biased? (Is it too large or too small?) c. How is this bias corrected in the formula for sample variance and sample standard deviation?
C++ Write a class Fraction that defines adding, subtracting, multiplying, and dividing fractions by overloading standard operators for these operations. Write a function member for reducing factors and overload I/O operators to input and output fractions
A variable has a mean of 100 and a standard deviation of 16. Sixteen observations of this variable have a mean of 113 and a sample standard deviation of 36. Determine the observed value of the a. standardized version of x. b. studentized version of x. a. Z= (Round to three decimal places as needed.) b.t- (Round to three decimal places as needed.) a. Use the one-mean t-interval procedure with the sample mean, sample size, sample standard deviation, and confidence...
The after-tax cost of debt is found by: O A. multiplying the before-tax cost of debt by (1-the corporate tax rate). O B. subtracting (1 -the corporate tax rate) from the before -tax cost of debt. O C. subtracting the corporate tax rate from the before tax cost of debt. D. dividing the before-tax cost of debt by (1 -the corporate tax rate).