O C. It is not a random variable.d. Is the time required to download a file from the Internet a discrete random variable, a continuous random variable, or not a random variable?O A. It is a continuous random variable.O B. It is a discrete random variable.O C. It is not a random variable.e. Is the height of a randomly selected giraffe a discrete random variable, a continuous random variable, or not a random variable?O A. It is a continuous random variable.O B. It is a discrete random variable.O C. It is not a random variable.f. Is the number of bald eagles in a country a discrete random variable, a continuous random variable, or not a random variable?O A. It is a discrete random variable.O B.It is a continuous random variable.O C. It is not a random variable.Search or type URLesc Determine whether 'the value is a discrete random variable, continuous random variable, or not a random variable.a. The number of people in a restaurant that has a capacity of 250b. The number of fish caught during a fishing tournamentc. The political party affiliation of adults in the United Statesd. The time required to download a file from the Internete. The height of a randomly selected giraffef. The number of bald eagles in a countrya. Is the number of people in a restaurant that has a capacity of 250 a discrete random variable, a continuous random variable, or not a random variable?O A. It is a discrete random variable.B. It is a continuous random variable.O C. It is not a random variable.b. Is the number of fish caught during a fishing tournament a discrete random variable, a continuous random variable, or not a random variable?O A. It is a discrete random variable.O B. It is a continuous random variable.O C. It is not a random variablec. Is the political party affiliation of adults in the United States a discrete random variable, a continuous random variable, or not a random variable?O A. It is a continuous random variable.OB. It is a discrete random variable.O C. It is not a random variable.d. Is the time required to download a file from the Internet a discrete random variable, a continuous random variable, or not a random variable?O A. It is a continuous random variable.B. It is a discrete random variable.O C. It is not a random variable.

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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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Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).† Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and ? = 0.78 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is ? = 4.60 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.60 grams? Use ? = 0.05. Compute the z value of the sample test statistic. Round two decimal placesFind (or estimate) the P-value. Round four decimal places
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).† Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and σ = 0.96 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is μ = 4.80 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.80 grams? Use α = 0.01. Compute the z value of the sample test statistic. (Round your answer to two decimal places.)(c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).† Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and σ = 0.70 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is μ = 4.45 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.45 grams? Use α = 0.05. How to solve for p
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).† Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and ? = 0.86 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is ? = 4.60 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.60 grams? Use ? = 0.10. (a) Compute the z value of the sample test statistic. (Round your answer to two decimal places.) (b) Find (or estimate) the P-value. (Round your answer to four decimal places.)
Which of the following is not a random variable? The number of heads in ten tosses of a fair coin. The number of passengers in cars passing though a toll booth. The age of the driver in cars passing through a toll booth. The response of randomly-selected people to the question, “Did you eat breakfast this morning?” The response of randomly-selected people to the question, “How many hours of sleep did you get last night?"
B. random sample D. None of the above 4. Which of the following is an example of a discrete random variable? A. weight of a new born baby B. body temperature of COVID-19 patients C. number of heads that will out if you toss a coin twice D. height of volleyball players 5. Shiela decided to conduct survey of families with four children. She is interested in counting the number of boy in each family. Is this a random variable? A. Yes, it is a random variable. В. Маybe C. No, it I not a random variable D. Cannot be determined 6. A box has red marbles, 3 black marbles and 5 blue marbles. A marble is picked at random. what is the total number of possible outcomes? А. 2 7. Cardo decided to order a pizza but he needs to choose the type of crust and the toppings. If there are only 6 possible combinations of ordering a pizza, from which of the following should you choose? В. 3 С. 5 D. 10 A. Crust: thin or deep dish ; Toppings: cheese, bacon, sausage, pepperoni or hotdog
Three students scheduled interviews for summer employment at the Tiket.com. In each case the interview results in either an offer for a position or no offer. Experimental outcomes are defined in terms of the results of the three interviews.a. List the experimental outcomes.b. Define a random variable that represents the number of offers made. Is the random variable continuous?c. Show the value of the random variable for each of the experimental outcomes
Choose the letter that corresponds to the correct answer Which of the following is an example of dicrete variables? a. Weight of students b. Number of purple marble in the basket I. с. Distance travelled between tricycles d. Height of the students in a certain class I. Which are the possible values of the random variable for the number of heads when you toss two coins а. 0,1,2,3 b. 1,2,3 с. 0,1 d. 0,1,2 II. Which of the following statement describe a discrete random variable? a. The average increase in height of baby each year b. The number of avocado produced by an avocado tree each year c. The length of span of a 10 months baby d. The average increase in weight of baby each year Which of the following will yield a higher interest? a. Investing in a bank that offers a simple interest rate of 10% annually for 2 years b. Investing in a cooperative that offers an interest rate of 10% compounding annually for IV. 2 years c. Both A and B d. Saving money in a piggy bank for 2 years Which of…
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).† Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and o= 0.88 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is = 4.65 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.65 grams? Use x=0.10. (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? OH μ 4.65 g; right-tailed OH = 4.65 g; H₂ μ< 4.65 g; left-tailed OH = 4.65 g; Hμ 4.65 g; two-tailed (b) What sampling distribution will you use? Explain the rationale…
A variable y of a finite population has the frequency distribution shown in the table. Suppose a member is selected at random from the population and let Y denote the value of the variable y for the member obtained. Complete parts (a) through (d) below. y 3 4 6. f 1 1 11 7 a. Determine the probability distribution of the random variable Y. 3 y P(Y = y) (Type integers or decimals. Do not round.) b. Use random-variable notation to describe the events that Y takes on the value 5, a value less than 5, and a value of at least 5. The event that Y takes on the value 5 can be represented as The event that Y takes on a value less than 5 can be represented as The event that Y takes on a value of at least 5 can be represented as { }. c. Find P(Y = 5), P(Y 5). %3D P(Y = 5) = (Type an integer or a decimal. Do not round.) P(Y<5) = (Type an integer or a decimal. Do not round.) P(Y 2 5) = (Type an integer or a decimal. Do not round.) LO
determine whether the random variable x is discrete or continuous. let x represent the populations of the 50 U.S. states

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