The feeding behavior of black bream (a type of fish) spawned in aquariums was studied in Brain, Behavior and Evolution (Apr.2000). Zoologists recorded the number of aggressive strikes of two black bream feeding at the bottom of the aquarium inthe 10 -minute period following the addition of food. The number of strikes and age of the fish (in days) were recordedapproximately each week for nine weeks, as shown in the table below.ITTWeekNumber of StrikesAge of Fish (days)1851202631363341504391555816263516975717881218415190a. Construct a scatterplot of the data, with number of strikes on the y -axis and age of the fish on the x -axis.b. Examine the scatterplot of part a. Do you detect a trend?

Given: Age of Fish (x) Number of Strikes 85 120 63 136 34 150 39 155 58 162 35 169…

Answered: The feeding behavior of black bream (a…

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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Prose rhythm is characterized as the occurrence of five-syllable sequences in long passages of text. This characterization may be used to assess the similarity among passages of text and sometimes the identity of authors. The following information is based on an article by D. Wishart and S. V. Leach appearing in Computer Studies of the Humanities and Verbal Behavior (Vol. 3, pp. 90-99). Syllables were categorized as long or short. On analyzing Plato's Republic, Wishart and Leach found that about 26.1% of the five-syllable sequences are of the type in which two are short and three are long. Suppose that Greek archaeologists have found an ancient manuscript dating back to Plato's time (about 427 - 347 B.C.). A random sample of 317 five-syllable sequences from the newly discovered manuscript showed that 61 are of the type two short and three long. Do the data indicate that the population proportion of this type of five syllable sequence is different (either way) from the text of Plato's…
Question 1A researcher is interested in measuring the memory recall of students. Twenty students were given fifteen minutes to try to memorize a list of 15 phrases. Each student was then asked to list as many of the phrases as he or she could remember both two hours and twenty-four hours later. The number of phrases recalled correctly for each student are shown below. Student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Two hours 7 1 9 13 3 0 3 14 0 12 2 2 12 10 2 4 3 11 5 4 Twenty-four Hours 2 2 4 14 10 9 4 3 1 3 14 4 1 0 11 10 10 12 14 13 c. Determine whether there is evidence, at the 5% level of significance, that for all students, the mean number of words recalled after two hours exceeds that recalled after twenty-four hours. d. Confirm test results in part (c) using JASP. Note: All JASP input files and output tables should be provided
The scientific productivity of major world cities was the subject of a recent study. The study determined the number of scientific papers published between 1994 and 1997 by researchers from each of the 20 world cities, and is shown below. City Number of papers City Number of papers 18 City 11 City 12 City 1 19 City 2 17 21 City 3 18 City 13 23 City 14 City 15 City 4 25 City 5 21 29 21 City 16 City 17 City 6 26 City 7 17 27 City 8 20 City 18 19 City 19 City 20 City 9 15 25 City 10 30 8. Construct a 90 % confidence interval for the average number of papers published in major world cities. Use technology to help you with this problem (Minitab). If calculating by hand, do not round until the end, and keep at least 3 decimal places for your critical value. Give your answers to at least 2 decimal places. くルく
A Gallup Poll released in December 2010 asked 1019 adults living in the Continental U.S. about their belief in the origin of humans. These results, along with results from a more comprehensive poll from 2001 (that we will assume to be exactly accurate), are summarized in the table below. The survey takers were asked to select which of the 4 responses (column 1) were closest to their belief. Response Year: 2001 Year: 2010 Humans Evolved with God guiding (1) 37% 38% Humans evolved but God had no part 12% 16% in the process (2) God created humans in present form 45% 40% |(3) Other / No opinion (4) 6% 6% Select the appropriate hypotheses for the following research question: have beliefs on the origin of human life changed since 2001? o Ha: the population follows the 2001 distribution. o Ho: the population follows the 2010 distribution. o Ha: the population follows the 2010 distribution. o Ho: the population doesn't follow the 2010 distribution. o Ha: the population follows the 2001…
Western Pygmy-Possum. The foraging behavior of the western pygmy-possum was investigated in the article “Strategies of a Small Nectarivorous Marsupial, the Western Pygmy-Possum, in Response to Seasonal Variation in Food Availability” (Journal of Mammalogy, Vol. 96, No. 6, pp. 1525–1535) by D. Morrant and S. Petit. The weights of adult male pygmy-possums in Australia are normally distributed with a mean of 8.5 g and a standard deviation of 0.3 g. a. Sketch the normal curve for the pygmy-possum weights. b. Find the sampling distribution of the sample mean for samples of size 4. Draw a graph of the normal curve associated with x. c. Repeat part (b) for samples of size 9.
A researcher is interested in the relationship between birth order and personality. A sample of n - 100 people is obtained, all of whom grew up in families as one of three children. Each person is given a personality test, and the researcher also records the person's birth-order position (1st born, 2nd, or 3rd). The frequencies from this study are shown in the following table. On the basis of these data, can the researcher conclude that there is a significant relation between birth order and personality? Test at the .05 level of significance. Birth Position 1st 2nd 3rd Outgoing 13 31 16 Reserved 17 19 4 1) false 2)6.89 3) 7.24 4)10.60 5)4 6)8.51 7) 12.84 8) 3 9)2 10)20 11)8 12) There is no relationship between birth order and personality 13)7.81 14)12 15) There is a relationship between birth order and personality 16)18 17)5.99 18) true 19) 30 The critical value is: The expected frequencies for Outgoing, Birth Position 1st is: The expected frequencies for Outgoing, Birth Position 3rd…
The table lists the average gestation period (in days) and longevity (in years) for the following mammals, as reported in The World Almanac and Book of Facts 2006. Mammal Gestation, y(days) Longevity, x(years) Mammal Gestation, y(days) Longevity, x(years) Baboon 187 20 Camel 406 12 Bear, black 219 18 Cat 63 12 Bear, grizzly 225 25 Chimpanzee 230 20 Bear, polar 240 20 Chipmunk 31 6 Beaver 105 5 Cow 284 15 Buffalo 285 15 Deer 201 8 Dog 61 12 Monkey 164 15 Donkey 365 12 Moose 240 12 Elephant 645 40 Mouse 21 3 Elk 250 15 Opossum 13 1 Fox 52 7 Pig 112 10 Giraffe 457 10 Puma 90 12 Goat 151 8 Rabbit 31 5 Gorilla 258 20 Rhinoceros 450 15 Guinea pig 48 4 Sea lion 350 12 Hippopotamus 238 41 Sheep 154 12 Horse 330 20 Squirrel 44 10 Kangaroo…
The scientific productivity of major world cities was the subject of a recent study. The study determined the number of scientific papers published between 1994 and 1997 by researchers from each of the 20 world cities, and is shown below. City Number of papers City Number of papers City 1 1616 City 11 33 City 2 2626 City 12 99 City 3 1212 City 13 2121 City 4 55 City 14 44 City 5 22 City 15 55 City 6 2626 City 16 44 City 7 66 City 17 2020 City 8 2525 City 18 1717 City 9 1616 City 19 2222 City 10 66 City 20 2525 Construct a 95 % confidence interval for the average number of papers published in major world cities. blank <μ<blank

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