◄ Files 7:44 PM Sun Jan 22K>LAUSD Schoology XCS STAT & PROB B: T X9.Pg 29010.11.12.Community ServicX S HOMEWORK #4:●●●●Handednesse-reader-frontend.macmillantech.comSuppose we select a student at random from among those who were partof the census and learn that the student mainly uses a Mac. Find theprobability that this person is a graduate student.SeasonGive me a hand The 28 students in Mr. Tabor's statistics class completeda brief survey. One of the questions asked whether each student was right-or left-handed. The two-way table summarizes the class data. Choose astudent from the class at random. Are the events "female" and"righthanded" independent? Justify your answer.RegularPostLeftRightBig Papi Baseball star David Ortiz-nicknamed "Big Papi" is knownfor his ability to deliver hits in high-pressure situations. Here is a two-waytable of his hits, walks, and outs in all of his regular-season and post-season plate appearances from 1997 through 2014.¹5 Choose a plateappearance at random. Are the events "Hit" and "Post-season"independent? Justify your answer.At-batSTAT & PROB B-S XGenderFemale318Hit202387Walk147457Male16Out5034208Preferred passengers? Refer to Exercise 3. Are the events "Survived"and "First class" independent? Justify your answer.Hatching temperature Refer to Exercise 4. Are the events "Hot water"and "Hatched" independent? Justify your answer.Reader648%+Aa

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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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Determine whether each sample is a random sample or a biased sample. Explain. 1. Carlos chooses 50 movies at random from a list of all his movies to determine the average runtime of the movies in his collection.
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Treat the dataset as your bag of peanut M&M’s (a simple random sample). Count the number of orange M&M’s and the total number of M&M’s in your bag. Then determine the proportion of your M&M’s that are orange. Number of orange M&M’s: 13 Total number of M&M’s: 65 Proportion of orange M&M’s: 0.2 Question below is according to this.
You collect data on number of hours spent studying, on average, throughout the Fall 2019 semester for all Stonehill students. You have a colleague at the College of the Holy Cross in Worcester, MA who collects the same data at Holy Cross. You want to compare the average number of hours spent studying during the Fall 2019 semester for male students at Stonehill, female students at Stonehill, male students at Holy Cross and female students at Holy Cross. Which statistical test would you use to compare the students at Stonehill and Holy Cross to look for significant differences in study time? a. one sample t test b. two sample t test c. repeated measures t test d. ANOVA
← The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. is 2: ? Actress (years) 27 27 Actor (years) 56 35 2 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). View an example In this example, is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: H0 year(s) H₁: H0 year(s) (Type integers or decimals. Do not round.) Identify the test statistic. t=…
Examples of population or sample? A. The types of cars driven by ur classmates B. The wt of five out of 33 tomatoes at the store C. A recent poll of 100 students in the US on studying habits
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The data on the right represent the number of traffic fatalities by seat location and gender. Determine P(female) and P(female/driver). Are the events "female" and "driver" independent? Determine P(female). P(female) = (Round to three decimal places as needed.) Driver Male Female Total 32,738 11,842 44,580 Passenger 6,346 6,395 12,741 Total 39,084 18,237 57,321
The floor exercise is a commonly shared event between the Women’s and Men’s Artistic Gymnastics programs. Let’s compare the floor exercise scores of the female gymnasts and male gymnasts. To do this, we will consider the 2007, 2011, and 2015 results as sample data. Part B: Apparatus Finals Let’s now look at the floor exercise scores in the Female Apparatus Finals and in the Male Apparatus Finals. Female Apparatus Finals Score Male Apparatus Finals Score 15.25 14.35 14.85 14.05 14.2 14.05 13.95 13.95 13.65 13.85 13.3 13.4 12.7 12.8 0 11.55 14.6 13.6 14.45 13.4 14.2 13.35 13.55 13.1 13.25 13.1 12.85 13.05 11.8 12.7 11.25 12.4 15 13 14.9 12.7 14.45 12.65 14.3 12.65 13.7 12.6 13.55 12.25 13.45 12.15 13.15 12.05 i. Find the sample mean and sample standard deviation for the floor exercise scores in the Female Apparatus Finals. ii. Find the sample mean and sample standard deviation for the floor exercise scores in the Male Apparatus…
Suppose 20% of the students on campus smoke. You select two students at random. In what percentage of samples will both students be smokers?
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A researcher studying allergies to animals is interested in performing a study at the local elementary school. At Pineview Elementary, there are 4 1st grade classrooms. The researcher picks 2 of the 4 classrooms and asks every 1st grader in the 2 classrooms what type of animal they own (cat, dog, rabbit, etc.). He also asks how often they experience allergies. What is the sample?

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