Question 3. Two biologists make two different estimates of how many fish live in a small lake.Annabelle thinks there are 200 fish. Cassandra thinks there are 500 fish. They do an experiment. OnMonday, they randomly catch, tag and release 20 fish. On Tuesday, they randomly catch 20 fish andthey see that 2 of the 20 fish have tags from Monday.Based on anything you know from statistics, probability, combinations, permutations, percentages, etc..whose estimate of the total fish population of the lake is better supported by the results of theexperiment?

In the experiment done on the fish population of the lake on Monday 20 fishes are caught and tagged…

Answered: Question 3. Two biologists make two…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Polls. America OnLine published a survey question. Among the 2,300 Internet users who responded, 20% answered “yes” and the others answered “no.” For the “yes” responses, what is the value of pn? What is fundamen-tally wrong with this survey?
In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation in statistical polling is the margin of error - the largest (reasonble) error that the poll could have. For example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% (72% minus 4% to 72% plus 4%). In a (made-up) poll, the proportion of people who like dark chocolate more than milk chocolate was 37% with a margin of error of 2.5%. Describe the conclusion about p using an absolute value inequality. . That lets you type in a vertical bar | to represent absolute values. Also, when you type in < and then =, the symbolic entry option will automatically convert that to ≤ . In the same way, if you type in > and then =, the symbolic entry option will automatically convert that to ≥. Be sure to use decimal numbers in your answer (such as using 0.40 for 40%).
You are given the following set of observations: 98, 77, 26, 33, 88, 90, 79, 81. What would be the mean for this distribution?
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Flip a coin 10 times and record the observed number of heads and tails. For example, with 10 flips one might get 6 heads and 4 tails. Now, flip the coin another 20 times (so 30 times in total) and again, record the observed number of heads and tails. Finally, flip the coin another 70 times (so 100 times in total) and record your results again. We would expect that the distribution of heads and tails to be 50/50. How far away from 50/50 are you for each of your three samples? Reflect upon why might this happen?
Teachers want to know which night each week their students are doing most of their homework. Most teachers think that students do homework equally throughout the week. Suppose a random sample of 56 students were asked on which night of the week they did the most homework. Please use the data below to test whether the night that students reported doing most of their homework was equally distributed across the 7 days. Sunday Monday Tuesday Wed. Thursday Friday Saturday Number of students 12 8 11 7 12 3 3 a. Find the expected valuesb. What is the df and critical value for the study with an alpha level of .05?c. State the two hypothesesd. Perform a chi square goodness of fit teste. Report the results in sentence and numbers in APA format.
Solve with steps Please.
I ask 32 residents of Klamath Falls if they own a house. If I would like to make sure that my sample is approximately normal, how many more residents (if any) must I ask, given the fact that (somehow) I know that 62 percent of all residents own a house.
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Identify the sample chosen for the study. The number of times 13 out of 22 students on your floor order take-out in a week. Answer O All students who order take-out in a week. O The 13 students on your floor. O The 22 students on your floor.
A teacher surveyed the students in one of his algebra classes, asking how many hours they spend watching TV shows, movies, and videos on a weekday. Their responses are given. Complete parts (a) through (e) below. 10 3 4 2 35 0 2 1 5 2 4 2 1 0 1 2 3 743 3 4 b. One student wrote "3-9." What value would represent this response well? Include the value in the sample for parts (c) through (d). A good value to represent the range 3-9 is c. Construct a dotplot. Choose the correct graph below. OA. TV, Movie, and Video Viewing Time O B. TV. Movie, and Video Viewing Time 02 4 8. 10 6. Hours 10 Hours OC. TV, Movie, and Video Viewing Time OD. TV. Movie, and Video Viewing Time 4. Hours 8 10 2 8. 10 C Hours d. What proportion of the observations are between 1 and 3 hours, inclusive? The proportion of the observations between 1 and 3 hours, inclusive is (Round to the nearest thousandth as needed) e. What proportion of the observations are less than 5 hours? Activate Windows Go to Settings to activate…

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