**Title: Estimating the Weight of Wild Mountain Lions****Introduction:**How much do wild mountain lions weigh? Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains had the following recorded weights (in pounds):- 65- 102- 135- 120- 60- 64**Activity Objective:**This exercise aims to calculate the sample mean weight and sample standard deviation of mountain lions and to determine a 75% confidence interval for the population average weight.---**Instructions:****(a) Calculating Mean and Standard Deviation:**1. Use a calculator equipped with mean and sample standard deviation functionalities.2. Find the sample mean weight (\(\bar{x}\)) and sample standard deviation (\(s\)).3. Round your answers to four decimal places.\[\bar{x} = \_\_\_\_\_ \text{ lb}\]\[s = \_\_\_\_\_ \text{ lb}\]**(b) Finding a 75% Confidence Interval:**1. Calculate the 75% confidence interval for the population average weight (\(\mu\)) of all adult mountain lions in the specified region.2. Round your answers to one decimal place.\[\text{Lower limit: } \_\_\_\_ \text{ lb}\]\[\text{Upper limit: } \_\_\_\_ \text{ lb}\]---**Assumptions:**- Assume that the population of \(x\) values has an approximately normal distribution.**Interactive Feature:**Use the “USE SALT” tool to aid in your calculations and verify results.**Conclusion:**Completing this activity will provide insights into statistical methods used to analyze animal weights, helping in ecological and conservation efforts.

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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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Show your handwritten work on the paper. The following is a frequency distribution of ages of residents of a senior citizens' home in New York. Fill in the midpoints, then calculate the mean and the standard deviation. Round to two decimal positions. You may assume the data represents a population. Ages of Residents Midpoints Frequency 50-62 63 75 76--88 a. Mean (u)3D b. Standard deviation (o) = Round the standard deviation up to 2 decimal places if necessary. Hint: Use the midpoint for each class (ages of residents). 2.
How much do wild mountain lions weigh? Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains gave the following weights (pounds):66 110 132 124 60 64(a) Use a calculator with mean and sample standard deviation keys to find the sample mean weight x and sample standard deviation s. (Round your answers to four decimal places.)x = _____lbs = _____lb (b) Find a 75% confidence interval for the population average weight ? of all adult mountain lions in the specified region. (Round your answers to one decimal place.)lower limit = ____lbupper limit = ____lb
What was the age distribution of prehistoric Native Americans? Extensive anthropological studies in the southwestern United States gave the following information about prehistoric extended family group of 96 members on what is now a Native American reservation. For this community, estimate the mean age expressed in years, the sample variance, and the sample standard deviation. For the class 31 and over, use 35.5 as the class midpoint. (Round your answer to one decimal place.) Average range(years) 1-10 11-20 21-30 31 and over # of individuals 36 22 24 14 Mean=S2= S=
You review your data from a population A and population B. The mean and standard deviation are noted as N(mean, standard deviation). NA(400,10) and NB(300,25). 95 percent of the observations for population A exceed a value of___________?95 percent of the observations for population B are less than a value of _____________?
What was the age distribution of prehistoric Native Americans? Extensive anthropological studies in the southwestern United States gave the following information about prehistoric extended family group of 85 members on what is now a Native American reservation. For this community, estimate the mean age expressed in years, the sample variance, and the sample standard deviation. For the class 31 and over, use 35.5 as the class midpoint. (Round your answer to one decimal place.) Average range(years) 1-10 11-20 21-30 31 and over # of individuals 35 23 16 11 Mean=S2= S=
3565 6781 11366 5656 10024 9101 9286 10376 7290 15558 6657 20795 4027 19100 16223 14502 2830 5785 9070 7560 D) Calculate the mean and standard deviation of your data set. You may use technology such as Google Sheets, Excel, or a TI-83/TI-84. Round to the nearest hundredth. Mean 9777.6 Standard Deviation 5090.73 E) Using a significance level a = 0.05, find the critical value using the following steps. 1. What are the degrees of freedom? n D20 d. f.= n- 1=19 = 19 2. Will this be a one-tailed or two tailed test? two-tailed 3. Using table 5 from the back of your textbook (page A18 in Appendix B), what is the critical value? 1.729
The coefficient of variation CV describes the standard deviation as a percent of the mean. Because it has no units, you can use the coefficient of variation to compare data with different units. Find the coefficient of variation for each sample data set. What can you conclude? Heights Weights77 19379 20569 22379 22077 22572 17965 20173 21071 19670 20475 21379 209 CV heights= % CV weights = % what can you conclude?
Kindly give proper explanation
Use the following raw scores to answer the questions below. 29 21 19 29 20 28 28 29 32 29 15 19 = _____%tile Find the Mean and Standard Deviation of the scores in Excel. mean = Standard Deviation = Convert the first three raw scores in the list on the previous page (29, 21, & 19) to z-scores. 29 = ___________ 21 = ____________ 19 = _____________ You administer a psychological test that has a normal distribution in the population. You know the Mean = 100 and the Standard Deviation = 15. Order the following (a-e) from smallest to largest. Raw Score of 86 Z-Score of 1.5 Percentile Rank of 98% Score that is 0.5 Standard Deviations below the Mean T-score of 80 _________ _________ _________ _________ _________ Eleanor scores 690 on the SAT math test. The normal distribution of SAT math scores has a mean of 500 and standard deviation of 100. Gerald takes the American…
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Normal Distribution

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