DescriptiveInferentialA bus company wants toestimate the number ofpassengers traveling on aholiday using their passengercount data in the past fouryears.A politician wants todetermine the total numberof votes his rival obtained inthe last election based on hiscopies of the tally sheet ofelectoral returns.A farmer wants to learnabout the weight of hissoybean crop. He randomlysampled 100 crops andrecorded the weight of each.Tin wants to determine thevariability of her five longexam scores in History ClassA researcher wants toinvestigate whether peoplewho visit the library modetend to watch a movie at atheater less.

There are two type of methods in statistics, they are descriptive statistics and inferential…

Answered: Descriptive Inferential A bus company…

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.
A senior high school teacher is interested in knowing the average number of hours a teacher works in a day. She plans to gather data by choosing every 2n a. Simple Random Sampling b. Systematic Sampling c. Stratified Sampling d. Cluster Sampling d teacher in the school's master list.
Holiday Blues. A poll was conducted by Opinion Research Corporation to estimate the proportions of men and women who get the “holiday blues.” Identify the a. specied attribute.b. two populations.c. two population proportions.d. two sample proportions.e. According to the poll, 34% of men and 44% of women get the “holiday blues.” Are the proportions 0.34 and 0.44 sample proportions or population proportions? Explain your answer.
A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?
The number of regular season wins for 10 college football teams in a given season are given below: 15 5 13 | 1 2 10 15 4 7 What is the population variance? Simplify your answer. Round to the nearest hundredth as needed.
Jocelyn believes that the amount of sleep she tends to get on weekends differs from the amount of sleep she tends to get during the school week. To investigate this claim, she randomly selects 10 weekend days and 10 school days. She consults her smart watch to determine the number of hours she slept for each of the selected days. Here are the data. School week: 7, 7.5, 8, 6.5, 8, 7.5, 7, 6.5, 7, 8Weekend: 9.5, 9.5, 8.25, 8.5, 7.5, 10.25, 8, 7, 9.5, 10 Jocelyn would like to determine if these data provide convincing evidence that the true mean amount of sleep she gets on the weekend differs from the true mean amount of sleep she gets during the school week. She tests H0: μS – μW = 0, Ha: μS – μW ≠ 0, where μW = the true mean amount of sleep Jocelyn gets on the weekend and μS = the true mean amount of sleep she gets during the school week. The conditions for inference are met. What are the values of the test statistic and P-value for a t-test about a difference in means? Find the…
Catherine Chao, Director of Marketing Research, needs a sample of households to participate in the testing of a new toothpaste package. She directs the seven members of her staff to find five households each. Catherine's sample is a cluster sample proportionate stratified sample quota sample disproportionate stratified sample simple random sample O O O
1) A consumer research company wants to estimate the average cost of an airline ticket for a round trip from New York to Los Angeles. A random sample of 50 airfares had an average price of $438. Identify the variable. (a) Simple random sample (c) Consumer research company (b) Airline fare (d) City e) $438
Suppose that a polling organization surveys n = 400 people about whether they think the federal government should give financial aid to the airlines to help them avoid bankruptcy. In the poll,300 people say that the government should provide aid to the airlines. Which choices give the correct notation and value for the sample proportion in this survey?
A pollster wants to know the average income of those who supported John McCain for president. He asks 100 supporters and calculates a mean of $67,543. Is this mean x overbar or mu ? A. mu , because it is calculated based off data from the entire population.. B. x overbar , because it is calculated based off data from the entire population. C. mu , because it is calculated based off data from a sample. D. x overbar , because it is calculated based off data from a sample.
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The times (in seconds) 878, 871, 906, 933, 930, 852, 890, 861, 882, 888, 897, 899, 879, 888, 848 Find the sample IQR is? And showing a boxplot of the data.

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