For the follwoing date find: 30 20 35 17 50 54 64 29 34 23 20 20 21 50 26 26 20 48 20 30 23 29 17 17 20 18 23 36 20 20 1. The Mean= 2. The Median= 3. The Mode= 4. The Range = 5. The Standard Deviation is = 6. The Variance is= 7. Q1Q1 = 8. Q3Q3 = 9. IQR= 10. Upper Fence= 11. Lower Fence is = 12.If you graphed the data above,...
Data of BMI: 25 25 26 27 28 30 30 31 32 35 35 38 10) Calculate the standard deviation, variance, and the z-score of someone with a BMI at 21. 11) Is this z-score unusually high or low? (If yes, specify which one). 12) Identify the 5-number summary below 13) Calculate the IQR 14) Identify any outliers 15) Draw a boxplot of your data (modified for outliers) 16) Write a sentence describing the shape of the distribution (skewed or...
27. Find the median of the following data: 1,4,5,7, 18, 38, 53 C) 42 D) 52 A) 7 B) 53 E) None of the Above 28. What quartile is the 25th percentile ? C) First B) Second D) Fourth E) None of the Above A) Third 29. You score an 81 on a test that had a mean of 76 and a standard deviation of 4. What is your 2-score? A) 2.0 B) 2.25 C) 0.5 D) 1.25 E) None...
5. A history test has a mean of 100 and a standard deviation of 10. Find the z-score for the test score 130. (5 points) Gientb, ind the allovings (5 points each) 18 27 21 42 38 25 30 35 17 40 28 20 a. The percentile rank of 28. b. The score that corresponds 80* percentile. 7. (10 points each) a. Given the data below , Use the b. Construct the box plot of the data outliner procedure to...
Data: 25 25 26 27 28 30 30 31 32 35 35 38 16) Write a sentence describing the shape of the distribution (skewed or symmetric). 17) How close together are your mean and median? Does this support your thoughts of skewness or symmetry for #16? Use the empircal rule to answer the following: 1) Assume the mean is 29 and the standard deviantion is 2. Draw the curve, identify the mean at the center, count out the standard deviations...
8. A student scores 56 on a geography test and 285 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 20. The mathematics test has a mean of 300 and a standard deviation of 10. If the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class? (You must show proper work to receive credit on this problem) 9....
A sample set is as the following with a missing value χι。It is known that χ = 18 16 | 16 | 18 | 18 | 20 | 20 | 20 | 22 | 30 | 35 What is the missing data value of the data set? What is the median? What is the variance? What is the variance, if this is a population? Does it skew? (Right, Left, or Not) 7. 10. A po^ulation is listed as the followin...
normal probability distribution . Provide an appropriate response. (1 point) Samples of size n 15 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the standard deviation is found for each sample. What is the distribution of the sample standard deviations? O normal (approximately) O skewed to the right O skewed to the left O not enough information provided 15. Provide an appropriate response. point) Samples of size n 90 are randomly...
A population is listed as the following 43 15 7 47 13 48 140 18 145 49 17. Find the Σχ2. 18. Find the (2 x)2 19. Find the ΣΧ2-Mar. 20. What is the standard deviation of the population? 7l Use the Empirical rule to determine the following areas as the probabilities 3a 21. 22. How big is the area (probability) of zone "B"? How big is the area (probability) of zone "D"? The mean height of males 20 years...
For the following data: 1 2 3 4 5 6 16 20 18 17 18 21 a. Calculate the sample mean and sample variance b. Calculate the probability that the population mean is between 9 and 10 if the population standard deviation is known to be 2.3. What is the 95% confidence interval for the population mean if the population standard deviation is known to be 2.3? d. Calculate the 95% confidence interval using the sample standard deviation. c.