Which one of these statistical summaries is unaffected by the value of the outlier? O Median...
Question 12 Which one of these statistical summaries is unaffected by the value of the outlier? Not enough information to answer the question None of the shown statistical summaries is correct Mean Standard deviation Range O Variance O Median
Which one of these statistical summaries is unaffected by the value of the outlier? Mean None of the shown statistical summaries is correct • Interquartile range Standard deviation Variance Not enough information to answer the question Range
QUESTION 23 Which of the following is the most descriptive measure of spread? Median Standard deviation Range Mean QUESTION 24 Which of the following describes a measure of Spread? Range and interquartile range (IQR) Variance and Standard Deviation (std) Mean, Median and Mode More than one answer is correct QUESTION 25 Sample standard deviation s is the estimator of population standard deviation o. True False
Which is the correct answer and why? Which of the following statistical concepts doesn't belong with the others? Standard deviation Median absolute deviation from median Variance Inter-quartile range Sample mean
The following table shows descriptive summaries for data on the number of defective cars produced daily at a Chevrolet plant: Average = 5.34783 Minimum = 1.0 Median = 5.0 Maximum = 9.0 Mode = 5.0 Interquartile Range = 5.0 Variance = 6.78261 Variation coefficient = 48.6991% Standard deviation = 2.60434 If the data x = 9 is changed to an arbitrarily large data (for example, x = 100), of the following three statements, which one is true? a. The mean...
Calculate the mean, median, mode, range and standard deviation of the data: -5, -3, -3, 4,9 a) mean 1.8, median-3, mode 3, range 14, standard deviation 5.7 b) mean 0.4, median 4, mode--5, range 15, standard deviation 5.9 c) mean-1.8, median--5, mode--3, range 13, standard deviation 5.7 d) mean 0.4, median-3, mode3, range 14, standard deviation 5.9 e) None of the above Question 9 Calculate the mean, median, mode, range and standard deviation of the data: -120, -45, -45, 14,...
You have a data set C1 and you do the following transformation using statistical software: C2=C1/5 You find the mean, median and standard deviation of the original C1 and the new C2 and compare them. You must then answer the question pictured below. I assumed "none of them" would be the answer since all three values changed after the transformation, but that answer if wrong. •If you shift the original data (C1) as follows: C3=C1+5 how would you answer the...
15. Which of the following is not a measure of location? (a) mean (b) median (c) variance (d) percentile (e) quartile 16. Which of the following statements is false? (a) the median is a measure of central tendency (b) quartiles are not measures of central tendency (c) the 50th percentile is the median (d) an extreme value is likely to have a greater effect on the median than the mean (e) the 25th percentile is the first quartile (Q1) Indicate...
Which statistical value is used to represent the linkage of the increase in one measurement to the increase in a second measurement? Standard deviation, variance, covariance, correlation coefficient Which human trait would be expected to have high concordance? Weight, eye color, contracting measles, hair length
15. The average salary in Vancouver has a mean of $70,000 and a median of $48,000. Which statistic would you prefer to use as a measure of center, and why?: * Oa. The mean because this statistic should always be used as the measure of center. Ob. The median because the salaries are strongly skewed left. Oc. The mean because the salaries are bell-shaped. Od. The median because the salaries are strongly skewed right. Questions 16-17: Consider the following summary...