Using the data you find in the Freshman 15 data (FRESH15.XLS or Freshman 15 Data, Data Set 4 in StatCrunch). Use either Excel or StatCrunch to produce the statistics and graphs to answer the following questions.What is the value for the mean and median weights in September and April.If you produce the appropriate histogram for the September weights, is the distribution normal, skewed, bimodal, or uniform?Which of the measure of central tendency is most appropriate to use? Why?Is there a relationship between the September weight and September BMI? Explain (include an appropriate graph).Compare the September BMI for males and females. Include appropriate statistics and graphs. Does it look like the differences are significant? Explain.Data:SEXWT SEPTWT APRILBMI SEPTBMI APRILM725922.0218.14M978619.717.44M746924.0922.43M938826.9725.57F686421.5120.1M595518.6917.4F646024.2422.88F565321.2320.23F706830.2629.24F585621.8821.02F504717.6316.89M716924.5723.85M676620.6820.15F565520.9720.36F706827.326.73F616023.322.88F535219.4819.24M929224.7424.69F575820.6920.79M676720.4920.6F585821.0921.24F495018.3718.53M686822.422.61F696928.1728.43M878823.623.81M818226.5226.78M606118.8919.27F525319.3119.75M707120.9621.32F636421.7822.22F565719.7820.23M686922.422.82M686922.7623.19F545620.1520.69M808222.1422.57M646620.2720.76F575922.1522.93F636523.8724.67F545618.6119.34F565821.7322.58M545618.9319.72M737525.8826.72M777928.5929.53F636621.8922.79F515418.3119.28F596219.6420.63F656823.0224.1F535620.6321.91F626522.6123.81F555822.0323.42M747720.3121.34M747820.3121.36M646819.5920.77M646821.0522.31F576123.4725.11F646822.8424.29F606419.520.9M646818.5119.83M667121.422.97F525717.7219.42M717722.2623.87F556021.6423.81M657122.5124.45M758223.6925.8F424915.0817.74M748222.6425.33M9410536.5740.86

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Answered: Using the data you find in the Freshman…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Using the data you find in the Freshman 15 data (FRESH15.XLS or Freshman 15 Data, Data Set 4 in StatCrunch). Use either Excel or StatCrunch to produce the statistics and graphs to answer the following questions.

1. What is the value for the mean and median weights in September and April.
2. If you produce the appropriate histogram for the September weights, is the distribution normal, skewed, bimodal, or uniform?
3. Which of the measure of central tendency is most appropriate to use? Why?
4. Is there a relationship between the September weight and September BMI? Explain (include an appropriate graph).
5. Compare the September BMI for males and females. Include appropriate statistics and graphs. Does it look like the differences are significant? Explain.

Data:

SEX	WT SEPT	WT APRIL	BMI SEPT	BMI APRIL
M	72	59	22.02	18.14
M	97	86	19.7	17.44
M	74	69	24.09	22.43
M	93	88	26.97	25.57
F	68	64	21.51	20.1
M	59	55	18.69	17.4
F	64	60	24.24	22.88
F	56	53	21.23	20.23
F	70	68	30.26	29.24
F	58	56	21.88	21.02
F	50	47	17.63	16.89
M	71	69	24.57	23.85
M	67	66	20.68	20.15
F	56	55	20.97	20.36
F	70	68	27.3	26.73
F	61	60	23.3	22.88
F	53	52	19.48	19.24
M	92	92	24.74	24.69
F	57	58	20.69	20.79
M	67	67	20.49	20.6
F	58	58	21.09	21.24
F	49	50	18.37	18.53
M	68	68	22.4	22.61
F	69	69	28.17	28.43
M	87	88	23.6	23.81
M	81	82	26.52	26.78
M	60	61	18.89	19.27
F	52	53	19.31	19.75
M	70	71	20.96	21.32
F	63	64	21.78	22.22
F	56	57	19.78	20.23
M	68	69	22.4	22.82
M	68	69	22.76	23.19
F	54	56	20.15	20.69
M	80	82	22.14	22.57
M	64	66	20.27	20.76
F	57	59	22.15	22.93
F	63	65	23.87	24.67
F	54	56	18.61	19.34
F	56	58	21.73	22.58
M	54	56	18.93	19.72
M	73	75	25.88	26.72
M	77	79	28.59	29.53
F	63	66	21.89	22.79
F	51	54	18.31	19.28
F	59	62	19.64	20.63
F	65	68	23.02	24.1
F	53	56	20.63	21.91
F	62	65	22.61	23.81
F	55	58	22.03	23.42
M	74	77	20.31	21.34
M	74	78	20.31	21.36
M	64	68	19.59	20.77
M	64	68	21.05	22.31
F	57	61	23.47	25.11
F	64	68	22.84	24.29
F	60	64	19.5	20.9
M	64	68	18.51	19.83
M	66	71	21.4	22.97
F	52	57	17.72	19.42
M	71	77	22.26	23.87
F	55	60	21.64	23.81
M	65	71	22.51	24.45
M	75	82	23.69	25.8
F	42	49	15.08	17.74
M	74	82	22.64	25.33
M	94	105	36.57	40.86

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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