According to a report, 60.3% of murders are committed with a firearm(a) If 200 murders are randomly selected, how many would we expect to be committed with a firearm?(b) Would it be unusual to observe 145 murders by firearm in a random sample of 200 murders? Why?(a) We would expect to be committed with a firearm.(b) Choose the correct answer below.OA. Yes, because 145 is between u-20 and u + 2GOB. No, because 145 is greater than u + 20.OC. No, because 145 is between μ-20 and μ + 20OD. No, because 145 is less than μ-20.OE. Yes, because 145 is greater than µ +20.

The question is about discrete probability distribution.Given :Proportion of murders are committed…

Answered: ccording a report, От are ited with a…

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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Suppose 420 randomly selected people are surveyed to determine whether or not they subscribe to cable TV. Of the 420 surveyed, 250 reported subscribing to cable TV. What is the sample proportion for successes, p′? Round the final answer to three decimal places.
ANSWER QUESTIONS 37 and 38 The reponse to #30 was the test statistic, F or F test, which came out to be 8.47458 The reponse to #31 was the p-value, which came out to be 0.00036
ree randomly selected households are surveyed. The numbers of people in the households are 3, 5, and 10. Assume that samples of cen=2 are randomly selected with replacement from the population of 3, 5, and 10. Listed below are the nine different samples. omplete parts (a) through (c). 3,3 3,5 3,10 5,3 5,5 5,10 10,3 10,5 10,10 D . Find the median of each of the nine samples, then summarize the sampling distribution of the medians in the format of a table epresenting the probability distribution of the distinct median values. Sample Median Probability (Type integers or fractions. Use ascending order of the sample medians.) b. Compare the population median to the mean of the sample medians. Choose the correct answer below. O A. The population median is not equal to the mean of the sample medians (it is also not half or double the mean of the sample medians). B. The population median is equal to half of the mean of the sample medians. O C. The population median is equal to double the mean…
60
Suppose you rolled a fair six-sided die a few times and recorded the results. (You would have a collection of numbers 1-6.) Now, suppose you wanted to average these numbers. What value would you expect? If the die was rolled 6 times and the results were: 1, 4, 2, 2, 3, 2, then the average of this sample of rolls would be 2.333. This experiment could be peformed again: 6, 5, 2, 1, 1, 4. Now, the average of this sample is 3.167. Obviously, these small samples have a lot of variation in them; however, is there a way to calculate the expected average? If we were to construct a very large sample, rolling this die 1 million times, what would the expected value (mean) be? Luckily, the rules of probability allows us to do this calculation without actually having to roll the die 1 million times! Below, you will find a probability table where all of the possible outcomes from the die are listed. The first column contains the possible outcomes on the die, the second column contains the…
2. In a population it is estimated that 20% have a desired trait of interest for the researcher. The researcher wants to know how many people on average he has to draw from a population to get 2 people with the trait. Use rows 20-24 of the Random Number Table to carry out the simulation. Explain clearly how you set up the problem and report your findings. Answer:
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Plz don't copy answer from Chegg Plz answer fast without plagiarism i give up vote 2
If you had an ANOVA with T1 = 5, T2 = 10, T3 = 15, with SS1 = 6, SS2 = 9, SS3 = 9, and ∑X2 = 94. If you were comparing 3 treatment groups with n = 5 in each group, what would SSwithin be? Group of answer choices 34 10 68 24
PLEASE TRY TO SOLVE ALL OF THESE (I AM STUDYING FOR A HUGE TEST!) THANK YOU!1. Caroline is doing research on the heights of players on her soccer team. Select each description that is an example of systematic sampling. A. Caroline chooses every seventh person on the team roster, starting with the second. B. Caroline randomly chooses one of her teammates. C. Caroline chooses the first 5 names on the team roster. D. Caroline chooses everyone on her team. E. Caroline has her teammates count off by 6 and chooses the ones who counted “3.” 2. You are doing research on the students in your class. Which of the following descriptions is an example of systematic sampling? A. You make a list of the students and choose the first 5 names on your list. B. You choose every student whose birthday is in July. C. You choose every student in your class. D. You have the students count off by 5 and choose the students who counted “4.” 3. Think About the Process The houses on a…
150% How many groups of three can the company select? In a recent survey in a Statistics class, it was determined that only 60% of the students attend class on Fridays. From past data it was noted that 98% of those who went to class on Fridays pass the course, while only 20% of those who did not go to class on Fridays passed the course. 4. а. What percentage of students are expected to pass the course? b. Given that a person passes the course, what is the probability that he/she attended classes on Fridays? 5. Describe the sample space (S) where 3 suitcases are inspected for contraband. The suitcases will either be returned or confiscated. O 1:20 cer

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