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Exercises 11 and 12 refer to Chapman's correction. Chapman's correction is a small tweak on the formula used in the capture-recapture method. Using the same three input variables
Use Chapman’s correction to estimate the population of gray whales described in Exercise 9. Compare the two answers.
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Chapter 14 Solutions
MYMATHLAB ACCESS F/MGF 1107
- Jason performed an experiment in which he randomly drew one chocolate at a time from a box, with replacement. The box contained one chocolate each of plain, milk, caramel, mint, and hazelnut varieties. The results of his experiment are shown below. Chocolate Variety Times Drawn plain 5 milk 5 caramel 8 mint 2 hazelnut 15 Based on the experiment above, predict the number of times a plain chocolate would be drawn if he performs the experiment a total of 105 times. A.15 B.16 C.14 D.10arrow_forwardAn experiment, in chemistry, was done where first a person tried to solve a problem with two possible results A or B. A second experiment was then done, with the materials from the first, which results C, after the student had gotten result A. Which of the following best describes this: P(A|B)P(C) or P(A)P(C) or P(A)P(C|A&B) or P(A)P(C|A)arrow_forwarda.What is the complementary solution? b. What is the particular solution?arrow_forward
- In a classic study of infant attachment, Harlow (1959) placed infant monkeys in cages with two artificial surrogate mothers. One “mother” was made from bare wire mesh and contained a baby bottle from which the infants could feed. The other mother was made from soft terry cloth and did not provide any access to food. Harlow observed the infant monkeys and recorded how much time per day was spent with each mother. In atypical day, the infants spent a total of 18 hours clinging to one of the two mothers. If there were no preference between the two, you would expect the time to be divided evenly, with an average of μ=9 hours for each of the mothers. However, the typical monkey spent around 15 hours per day with the terry-cloth mother, indicating a strong preference for the soft, cuddly mother. Suppose a sample of n=9 infant monkeys averaged M=15.3 hours per day with SS=216 with the terry-cloth mother. Is this result sufficient to conclude that the monkeys spent significantly more time with…arrow_forwardYou are interested in finding out if kangaroo rats that have been offered food ad lib(unlimited food) for the previous 24 hours store a different amount of food in their pouches than kangaroo rats that have been starved for 24 hours. You take 8 kangaroo rats and starve them for 24 hours, then offer them food and count how many seeds are stored in their pouches in the next hour. You let your rats rest for one week, and repeat the experiment with the same rats, but offer them unlimited food for the 24 hours prior to the experiment. Run the appropriate statistical test. Rat ID # Seeds (starving) 3 Seeds (ad lib) 1 10 26 2 16 23 3 15 16 4 12 17 5 21 29 6 13 21 7 12 32 8 10 18arrow_forwardA researcher is interested in testing the effect of two techniques— (1) attending small-group tutoring sessions and (2) reading guides—on a person's ability to do a particularly challenging form of crossword puzzle known as a cryptic crossword. The researcher recruits 36 participants and has half of them attend a small-group tutoring session. They also have half of those who did and did not attend the small-group tutoring session read a cryptic crossword guide. They then gave the 36 participants a cryptic crossword puzzle and recorded how many clues the participants had answered correctly after 20 minutes. The data for the researcher's study is included below. 1. Paste the necessary output for this analysis (both descriptive and inferential) from jamovi. Descriptive statistics must include cell means and group means . 2. What is the mean and standard deviation for each group ? 3. What is the value of the test statistic for each effect ? 4. What is the degrees of freedom for each…arrow_forward
- Which of the following is the largest number of jobs that could theoretically be within the software industry at present, based on the information available? A) 1,4 million B) 2,4 million C) 4 million D) 8 million E) 10 million Transcribed Image Text:Preparing for Automation The possibility of having robots or mechanical assistants completing our laborious, dangerous, or repetitive day-to-day tasks has long been a dream of humanity. Now, as Robotic Process Automation (RPA) becomes commonplace, this dream or concern, depending on viewpoint - is getting closer. RPA, far from the walking, talking android commonly found in science fiction series, can be thought of as a programmable piece of software which, through using a series of rules, will complete repetitive tasks with a lower error rate and less interruption than a human completing the same tasks. The aim of RPA, beyond improving efficiency, is to free up humans from the monotony of roles like data entry, stock management and…arrow_forwardIn a lumberjack competition, a contestant is blindfolded and spun around 9 times. The blindfolded contestant then tries to hit the target point in the middle of a horizontal log with an axe. The contestant receives 15 points if his hit is within 3 cm of the target, 10 points if his hit is between 3 cm and 10 cm of the target, 5 points if his hit is between 10 cm and 20 cm of the target, and Zero points if his hit is 20 cm or more away from the target. Let Y record the position of the hit, so that Y=y>0 corresponds to missing the target point to the right by y cm Y=-y<0 corresponds to missing the target to the left by y cm. Assume that Y is normally distributed with mean mu=0 and variance 100 cm2. Find the expected number of points that the contestant wins.arrow_forward1. A researcher observed a rat respond for a food reward by pressing one of the three levers in a cage. Pressing the lever to the right (R) produced no food reward. pressing the lever to the left (L) produced a single food pellet, and pressing the lever at the center (C) produced two food pellets. Because the center level produced the largest reward, the researcher hypothesized that the rat would press this lever most often. Each trial ended when the rat produced a level. The researcher recorded lever pressing for 30 trials. L, L, R, L, R, C, R, L, C, L, L, C, C, C, R, C, R, C, L, C, C, L, C, C, C, L, C, C, C, C, C - Create the appropiate graph for this data - Do these data support the hypothesis? Explain. 2. Which scales of measurement are assumed to be discrete? What does this mean? Which scales of measurement are assumed to be continuous? What does this mean? 3. What type of graph should you create to visualize the following frequency data? Explain. -…arrow_forward
- Discrete Mathematics and Its Applications ( 8th I...MathISBN:9781259676512Author:Kenneth H RosenPublisher:McGraw-Hill EducationMathematics for Elementary Teachers with Activiti...MathISBN:9780134392790Author:Beckmann, SybillaPublisher:PEARSON
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