4. Water availability is of prime importance in the life cycle of most reptiles. Todetermine the rate of evaporative water loss of a certain species of lizard at aparticular desert site, 34 such lizards were randomly collected, weighed and placedunder the appropriate experimental conditions. After 24 hours, each lizard wasremoved, weighed, and its total water loss was calculated by subtracting its bodyweight after treatment from its initial body weight. Previous studies have shown thatthe relative frequency distribution of water loss for this species of lizard has a meanof 3.1 grams and a s.d. of 0.8 gram.a) What is the approximate sampling distribution of x, the mean water loss of the34 lizards* is approximately normal with mean 3.1 and s.d. 0.8 by CLTis approximately binomial with mean 3.1 and s.d. 0.8/√34 by CLTis approximately normal with mean 3.1 and s.d. 0.8/√34 by CLT* is approximately binomial with mean 3.1 and s.d. 0.8 by CLT

Given n=34, mean=μ=3.1, standard deviations σ=0.80.8000

Answered: 4. Water availability is of prime…

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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b) What is the probability that is less than 2.7 grams? 0.3085 0.6915 0.9982 0.0018
Serum estradiol is an important risk factor for breast cancer in postmenopausal women. To better understand the etiology of breast cancer, serum-estradiol samples were collected from 25 premenopausal women (at about the same time period of the menstrual cycle) of whom 10 were Caucasian and 15 were African American. The data are shown in Table 7.3. The distribution of serum estradiol is usually highly skewed (especially for premenopausal women), and we are reluctant to assume normality. Table 7.3 Serum estradiol and ethnicity in 25 premenopausal women, where 0=Caucasian and 1=African-American ID Serum_estradiol Ethic 1 94 0 2 54 1 3 31 0 4 21 1 5 46 1 6 56 0 7 18 1 8 19 1 9 12 1 10 14 0 11 25 0 12 35 1 13 22 1 14 71 0 15 43 1 16 35 1 17 42 1 18 50 1 19 44 1 20 41 0 21 28 0 22 65 0 23 31 0 24…
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In a combined study of northern pike, cutthroat trout, rainbow trout, and lake trout, it was found that 40 out of 866 fish died when caught and released using barbless hooks on flies or lures. All hooks were removed from the fish. (a) Let p represent the proportion of all pike and trout that die (i.e., p is the mortality rate) when caught and released using barbless hooks. Find a point estimate for p. (Round your answer to four decimal places.)(b) Find a 99% confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit Give a brief explanation of the meaning of the interval. We are 99% confident that the true catch-and-release mortality rate falls outside this interval.We are 1% confident that the true catch-and-release mortality rate falls above this interval. We are 99% confident that the true catch-and-release mortality rate falls within this interval.We are 1% confident that the true catch-and-release mortality rate falls…

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