I need help with these homework questions ASAP. Thank you

D Question 1 1 pts Which type of statistical analysis of data can compensate for bias in a study sample? O No statistical analysis can compensate for bias in a study sample O Use of an appropriate parametric statistical test O Use of an appropriate nonparametric statistical test O Discriminant analysis O Log-linear regression analysisD Question 3 1 pts Validity is: O a measure of agreement among individual measurements. a measure of agreement between observed data and the true value. O proof that the alternative hypothesis is true. O the same as reliability. O proof that the null hypothesis is true.D Question 2 1 pts Precision is: O a measure of agreement among individual measurements. O always a valid measurement. the same as accuracy. O a bias-free measurement. a measure of agreement between observed data and the true value.D Question 5 1 pts Which of the following is a measure of central tendency in a data distribution? Neither mode, median nor mean are measures of central tendency. O Mode, median, and mean are all measures of central tendency. O Mode O Median O MeanD Question 4 1 pts How many degrees of freedom exist in the following equation: 45 - 765 + 872 + x = 100 O 152 O The degrees of freedom available cannot be determined from this equation. O three one O -52D Question 7 1 pts Kurtosis is a measure of: er how much the mean value is "off center." the extent to which mode varies from the standard deviation. O the distance between an individual data point and the mean. O the extent to which the median varies from the standard deviation. the "flatness" or "fatness" of a data distribution.D Question 6 1 pts Skewness is a measure of: O the distance between an individual data point and the mean. O the extent to which the median varies from the standard deviation. O how much the mean value is "off center." O the "flatness" or "fatness" of a data distribution. O the extent to which mode varies from the standard deviation.D Question 9 1 pts Researchers measure the systolic blood pressures of 100 patients age 80 years or older. The mean systolic blood pressure for this group of patients is 152 mmHg (millimeters of mercury). A measure of the variation of individual blood pressure readings from the mean, measured in mmHg2, is called the variance. O variability of the mean. analysis of variance (ANOVA). O standard deviation. standard error of the mean.D Question 8 1 pts It is important to assess the kurtosis and skewness of a data distribution because: O they can help determine which non-parametric test to use. they can help determine which parametric test to use. O they can help determine the value of a needed to determine statistical significance. O they can help determine the number of subjects needed in each group. O they can help determine the validity of using a parametric statistical test.D Question 10 1 pts Researchers measure the systolic blood pressures of 100 patients age 80 years or older. The mean systolic blood pressure for this group of patients is 152 mmHg (millimeters of mercury). The square root of the variation of individual blood pressure readings from the mean, measured in mmHg2, is called the: O variance. O standard error of the mean. O standard deviation. O variability of the mean. O analysis of variance (ANOVA)