0LOM 5300 Multiple Choice Chapter 1

In this case, the independent variable is the gender and the dependent variable is the

17 In regression analysis, the coefficient of determination R2 measures the amount of variation in y

Slide 17: This curve demonstrates a one-tail hypothesis with the critical region representing 5% showing a negative relationship.

The mean for the median column of the worksheet is 3.6Yes, the estimate is centered about the parameter of interest.

b. Ordinal: This is a measurement that represent the order of a particular stat. A good example of this would the placement in a contest, 1st, 2nd, and 3rd.

(Measureable) quality is being measured by scores (areas are being identified by scores of either higher or lower)

*. _____ involves a sense of one’s own gender, including knowledge, understanding, and acceptance of being male or female.

Interval-Level: Indicates the levels between categories, ranks them and specifies the amount between each rank; does not have a true zero (Ex: IQ

Based on the given sample of student test scores of 50, 60, 74, 83, 83, 90, 90, 92, and 95 after rearranging them from least to greatest. As the mean is based on the average of sum, the average of this sample is 79.67 or 80. The mode refers to numbers that appear the most in a sequence and in this case 83 and 90 both appear twice. Range calculates the difference between the largest and smallest number, which are 95 and 50 which have a difference of 45. The variance is the difference between the sum of squares divided by the sample size, which is the number in the sample minus one (Hansen & Myers, 2012), meaning it takes each number of the set and subtracts

The number 65 is the greatest outlier of the given values. The inbalanced influence of the integer can be highlighted by witholding 65 from the values and solving for the mean 13+3+35+19+12+15+5+42+11 = 155/9 = 17.22...

5. For the following set of scores, compute the range, the unbiased and the biased standard deviations, and the variance. Do the exercise by hand.

2. An example of a interval scale variable is the make of a car. FALSE

* 7. The mean (Median) is a measure of location (central tendency) of a distribution while the SD is a measure of scale (variability) of its scores. Both mean and SD are measure of descriptive statistics.

The 85th percentile is the speed at which 85% of the observed vehicles are traveling at or below. This percentile is used in evaluating/recommending posted speed limits based on the assumption that 85% of the drivers are traveling at a speed they perceive

Since 3.27 the t statistic is in the rejection area to the right of =1.701, the level of