What is the first quartile of the following data set? 18, 20, 21, 23, 24, 26, 29, 30, 34, 37, 40 A. 18 О В. 20 С. 23 D. 21
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![What is the first quartile of the following data set?
18, 20, 21, 23, 24, 26, 29, 30, 34, 37, 40
OA. 18
B. 20
O C. 23
O D. 21](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6b9442d8-07dd-4646-bdf9-79810de5bdeb%2F7bcb6a5e-e531-4019-af51-b5a08f58d80e%2Fmx41zdc_processed.jpeg&w=3840&q=75)
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- Find average in classified data set (k=4) Sınıflandırılmış verilerde ortalamayı bulunuz (k=4) 16 - 24 37 37 37 40 41 43 17 21 23 О а) 31.2 В) 33.7 O NS) 29.3 O D) 32.0 ОТО) 33.4b. Lower Quartile or \(Q_1\) \(1) c. Median or \(Q_2\) \(\) d. Upper Quartile or \(Q_3\) \(1) e. Maximum value \(1)What is the population standard deviation of the data set? {5,6,7,7,9{ GeoGebra Graphing Calculator a.1.33 b.1.48 c.1.80 d.1.71
- 4) Which of these samples would have the smallest standard deviation? a. 101, 92, 84, 131 b. -25, -10, -19, -3 с. 15, 9, 2, 21 d. 190, 187, 189, 192Compute the first quartile, the third quartile, and the interquartile range of the data set.The National Sleep Foundation recommends that adults aged 18 to 64 get an average of 8 hours of sleep per night. A survey of sleep hours was taken during a Statistics class. The 25 data values listed below: 4, 5, 5, 5, 5.5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 10, 10 Do we have enough evidence at the 0.05 significance level to say that GRCC MA 215 students tend to get less sleep than the recommended average of 8 hours per night?
- AFDA Main Ideas: Module 9 Review 1) The measures of center: 2) Measures of spread: 3). When describing a data set, the mean is used with used with 4) Z-scores are used to compare data that is 5). What is the formula for finding the z-score? 14 6). The z-score of the mean is always z = 7). What are the characteristics of a normal distribution? and and and the median is 8). What two characteristics make a distribution go from "normal" to "standard normal?"define the terms population parameter, and sample statistics as they apply to statistical studies.7. Female Pulse Rates Pulse rates of adult females are listed in Data Set 1 “Body Data” in Appendix B. The lowest pulse rate is 36 beats per minute, the mean of the listed pulse rates is x = 74.0 beats per minute, and their standard deviation is s = 12.5 beats per minute. a. What is the difference between the pulse rate of 36 beats per minute and the mean pulse rate of the females? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the pulse rate of 36 beats per minutes to a z score. d. If we consider pulse rates that convert to z scores between - 2 and 2 to be neither significantly low nor significantly high, is the pulse rate of 36 beats per minute significant?
- Rank the data sets described in order of the least spread out (1) to the most spread out (5) based on the standard deviation. Set A: o = 3.5 [ Select ] Set B: o = 8.02 [ Select ] Set C: o = 1.4 Select ] Set D: o = 5.7 Select ] Set F: o = 0.58 [ Select ]The serum cholesterol levels (in 244, 235, 249, 237, 228, 220, 201, 259, 191, 198, 240, 196, 222, 252, 203, 211, 215, 254 Send data to calculator (a) mg th Find 30 and 75th percentiles for these cholesterol levels. (b) dL (If necessary, consult a list of formulas.) The 30th percentile: -) of 18 individuals are The 75th percentile: mg dL mg dLResearchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected. Friday the 6th: Friday the 13th: 10 10 13 11 13 69 11
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