C.An agricultural researcher wants to compare the mean numbers of pods betweenthree plot types (Liberty, No Till and Chisel Plowed). For each plot type, he records 7measurements of the number of pods.Liberty37313635433738No Till34303827404239Chisel Plowed32372423323436Using a 0.05 level of significance, test the hypothesis that the actual mean numbersof pods are equal across the three plot types.

Null hypothesis: H0:µ1 = µ2 = µ3 Alternative hypothesis: H0: Not all the population means are equal.…

Answered: C. An agricultural researcher wants to…

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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3. The amount of time (in minutes) it took each individual in a sample of athletes to run a mile was recorded. In this particular sample, most of the athletes were able to run the mile quickly, but there were a small number of athletes who were not fast runners and needed more time to complete the mile. Two measures of center were computed for this sample: 12.9 minutes and 9.5 minutes. One of these measures is the mean and one is the median. Which measure must be the mean? A. The mean is 9.5 minutes because the distribution of running times would be skewed to the left. B. The mean is 9.5 minutes because the distribution of running times would be skewed to the right. c. The mean is 12.9 minutes because the distribution of running times would be skewed to the left. D. The mean is 12.9 minutes because the distribution running times would be skewed to the right.
To estimate the mean score on a departmental exam, a sample of 40 student departmental exams is taken.
Consider the following data consisting of 9 values: Data 3 20 12 0 16 5 19 4 8 The minimum is The first quartile is The median is The third quartile is The maximum is The IQR is
17 For the Park City basketball team, scores for the last 30 games were as follows (smallest to largest): 32; 32; 33; 34; 38; 40; 42: 42; 43; 44; 46; 47; 47; 48; 48; 48; 49; 50; 50; 51; 52; 52; 52; 53; 54; 56; 57; 57; 60; 61 Construct a stem plot for the data.
2. The heights and arm spans of 10 adult males were measured (in cm). Is there a significant correlation between these two measurements? Carry out an appropriate analysis. Height (cm) Span (cm) 171 173 195 193 180 188 182 185 190 186 175 178 177 182 178 182 192 198 202 202
Use table for questions 1a, b,c, Number of hours spent sleeping at night 5 8 6 7 4 9 8 7 5 9 8 10 7 7 8 6 8 8 7 8 9 8 7 5 9 10 7 8 8 6 1a. Find the measurer of central tendency for the data. Mean: Median: Mode: 1b. Which measure of central tendency so you think gives the best indication of the number of hours the “typical” person spends sleeping each night? Explain 1c. Suppose anotherperson was surveyed who said that he spends 3 hours sleeping at night. How would this affect the mean, median and mode? 2A. Use the given data set to solve the following problems 100, 129,105,97,112,103,241,110,117,18. Find the a) mean b) median c) mode B) What effect dose removing the outlier have on each measure of central tendency? a) mean b) Mode c) Median 3. Gray has taken an aptitude test 8 times and his scores are 96,98,105,36,87,95, and 93. Which measure of central tendency is most appropriate for his score?
Consider the following data consisting of 9 values: Data 13 4 19 2 10 9 3 11 8 The minimum is The first quartile is The median is The third quartile is The maximum is The IQR is
2. A researcher selected a random sample of 20 individuals and recorded their heights (in inches). Make a stem and leaf plot of the Height data below. Height of Stat 1350 students (in inches) 58 59 60 62 64 65 65 66 66 67 68 68 69 69 71 72 72 73 74 76 HISTOGRAM: 3. The following is the IQ scores for 40 randomly chosen fifth graders in 2012. 108 113 12699 117 119 102 109 129 109 130 112 81 138 90 105 80 123 100 135 140 103 133 127 139 99 114 129 108 132 118 113 114 128 110 98 127 120 93 85 A. What type of data is this (Categorical or Numerical)? Use the calculator to help you draw a histogram for this IQ data. Full detail steps for using the Ti-83/84 calculator to draw a histogram given in the Chapter 11 notes. B. Enter the fifth grades IQ Scores data into List1 (L1). C. Using STAT PLOT menu set up your calculator to draw a histogram.
A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: Diastolic: 111 83 53 145 105 149 114 147 134 84 69 90 74 77 122 110 101 73 85 64 Find the means. The mean for systolic is mm Hg and the mean for diastolic is mm Hg. (Type integers or decimals rounded to one decimal place as needed.)
A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: 122 137 158 114 156 143 99 112 115 152 Diastolic: 61 51 76 73 55 58 74 60 87 59 Find the means. The mean for systolic is mm Hg and the mean for diastolic is mm Hg. (Type integers or decimals rounded to one decimal place as needed.) ***
A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: 147 137 146 148 105 102 129 122 95 99 Diastolic: 86 79 68 60 77 82 89 84 72 58
A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: 97 96 134 112 154 116 156 99 153 117 Diastolic: 63 55 87 73 76 88 85 79 69 62 Find the means. The mean for systolic is nothing mm Hg and the mean for diastolic is nothing mm Hg. (Type integers or decimals rounded to one decimal place as needed.) Find the medians. The median for systolic is nothing mm Hg and the median for diastolic is nothing mm Hg. (Type integers or decimals rounded to one decimal place as needed.) Compare the results. Choose the correct answer below. A. The median is lower for the…

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