A survey asks 1500 workers, "Has the economy forced you to reduce the amount of vacation you plan to take this year?" Fifty-five percent of those surveyed say theyare reducing the amount of vacation. Twenty workers participating in the survey are randomly selected. The random variable represents the number of workers who arereducing the amount of vacation. Decide whether the experiment is a binomial experiment. If it is, identify a success, specify the values of n, p, and q, and list thepossible values of the random variable x.Selecting a worker who is not reducing the amount of vacationSelecting a worker who is reducing the amount of vacationO This is not a binomial experiment.Specify the value of n. Select the correct choice below and fill in any answer boxes in your choice.n=20OB. This is not a binomial experiment.Specify the value of p. Select the correct choice below and fill in any answer boxes in your choice.p= .55 (Type an integer or a decimal.)OB. This is not a binomial experiment.Specify the value of g. Select the correct choice below and fill in any answer boxes in your choice.O A.O A. q= |(Type an integer or a decimal.)B. This is not a binomial experiment.(0)More

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Answered: A survey asks 1500 workers, "Has the…

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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John hands out survey forms to his classmates to be returned to him next week. It is an example of Response bias Measurement bias Sampling bias Non response bias
A researcher wants to study the effects of social media on Grade 11 students in Mathematics High School. He wishes to use the simple random sampling technique in choosing the members of his sample. If there are 1,000 Grade 11 students in the school, how many students should there be in his sample? Discuss the steps he must take if he wishes to use the lottery method.
A small shop owner wants to see how much people are spending at her store, so she numbers all the receipts from the past week and uses a computer program to generate a list of 20 random numbers. She samples the receipts that correspond to those numbers. What type of sample was taken? convenience sample simple random sample systematic sample cluster sample quota sample voluntary response sample
Answer Task A only
A Statistics Canada researcher selects (at random) 10 apartments in one apartment building. The researcher then interviews all the residents in each of the 10 apartments selected. Which type of sampling did this researcher use?
In an activity, students are pulling marbles from a large jar containing blue and red marbles. In their sample, students will calculate the proportion of blue marbles. Which of the following sample sizes will have the largest sampling variability? O 5 10 O 15 O 20
Textbook question for practise - A behavioural psychologist has developed a cognitive-behavioural therapy (CBT) technique modified from classic systematic desensitization to reduce her patients’ phobia of spiders. She decides to test the effectiveness of her new therapy approach by selecting ten patients at random to undergo the treatment for 3 months. The patients were asked to rate how much fear they feel/experience when in the presence of a spider/spiders using a scale from 0 (no fear at all) to 100 (extreme panic and fear). They were tested before and after the therapy. The ratings for each patient are as follows: For this question, be sure to do the following: ▪ State the statistical hypotheses (using the appropriate notation). ▪ Indicate whether the research hypothesis is non-directional or directional (and how you know). ▪ Set the decision rules, which will include: o State alpha - 0.05% o Compute the degrees of freedom o Providing the critical value for the test statistic…
Suppose a random sample of 1012 athletes from the college are asked what their major is. The table below shows the results of the survey. Outcome Observed Frequency Math/Science 186 Arts & Humanities 233 Business & Economics 311 Other 282 The distribution of majors at the college is shown in the second column of the table below. Fill in the expected frequencies. (Round to the nearest whole number). Frequencies of Majors at the College Outcome Expected Percent Expected Frequency Math/Science 23 Arts & Humanities 18 Business & Economics 31 Other 28
Determine which Sample Type is used in the following scenarios. President Biden want to survey the nation about their incomes. He contacts the IRS and has them put everyone who filed taxes last year into a data base. He then groups tax filers based on their filing status, Single, Married filing separate, and married filing jointly. He then selects 5000 people from each group using a random generator to survey.
Suppose a random sample of 800 athletes from the college are asked what their major is. The table below shows the results of the survey. Observed Frequencies of Majors from the Sample Observed Frequency Outcome Math/Science 256 Arts & Humanities 190 Business & Economics 153 Other 201 The distribution of majors at the college is shown in the second column of the table below. Fill in the expected frequencies. (Round to the nearest whole number). Frequencies of Majors at the College Expected Percent Outcome Expected Frequency Math/Science 18 Arts & Humanities 29 Business & Economics 25
Part 2
You want to do a survey of members of the baseball team at Georgetown College to see how they feel about academic life at GC. You want to ensure that you take a simple random sample. There are several sampling strategies that you have in mind. Which one of the following strategies is a simple random sample of size 12? Group of answer choices ( ) You obtain a list of all GC baseball players. You then write the name of each player on a slip of paper and put the papers in a hat. You thoroughly shuffle the names and then select 12 slips of paper from the hat without replacement. ( ) You obtain a list of all GC baseball players and you select one of the first 5 names at random. Then, you select every fifth name on the list after that until you have 12 people selected. ( ) You obtain an alphabetically-ordered list of all GC baseball players and pick the first 12 names on the list. ( )You find out that there are 20 JV players and 40 Varsity players on the baseball…

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