23. A teacher decides to pick 3students to present their projects. Shehas all the students do a math problem.The last three students to get theproblem right have to present. Is this afair way to sample?Yes, every student has an opportunityto get pickedNo, some students are not likely to getpicked24. Which of the following is likely tohave the largest standard deviation?Number of hours students in my classslept last nightNumber of cars my students ownAmount of money my students haveNumber of siblings my students have25. What type of sample is this? A radiostation asks people to call in and saywhether they love or hate their boss.Simple Random SampleO Convenience Sample

23. A teacher decides to pick 3 students to present their projects. She has all the students do a math problem. The last three students to get the problem right have to present. Is this a fair way to sample? Yes, every student has an opportunity to get picked No, some students are not likely to get picked

23. A teacher decides to pick 3 students to present their projects. She has all the students do a math problem. The last three students to get the problem right have to present. Is this a fair way to sample? Yes, every student has an opportunity to get picked No, some students are not likely to get picked

Trigonometry (11th Edition)

11th Edition

ISBN:9780134217437

Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Chapter1: Trigonometric Functions

Section: Chapter Questions

Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.

See similar textbooks

Similar questions

I need help with solving this question please! Thank you!
One of New England Air's top competitive priorities is on-time arrivals. Quality VP Clair Bond decided to personally monitor New England Air's performance. Each week for the past 30 weeks, Bond checked a random sample of 100 flight arrivals for on-time performance. Click the icon to view the table that contains the number of flights that did not meet New England Air's definition of on time. a) The overall fraction of late flights is (enter your response as a real number rounded to two decimal places.) Using a 95% confidence level, the upper and lower control limits are: Upper control limit (UCL) = Lower control limit (LCLp) = b) Assume that the airline industry's upper and lower control limits for flights that are not on time are 0.1000 and 0.0300, respectively. Choose the correct control chart below. O A. Percentage of late flights 0.14- 말 0.12- 0.10- 0.08- 0.06- 0.04- 0.02- 0.00- O A. Percentage of late flights O O c) Choose the chart below that correctly plots the percentage of late…
On election day, a local TV news organization stayed at three polling locations in Fairfield county and asked voters whether they voted for candidate A in the election for the US Senate seat. The ’yes’ responses they got were 520 out of 945, 475 out of 865, and 485 out of 980 in the three different locations. They aggregated the sample data into 1480 out of 2790 and after the 8pm close of the election reported their sample results to viewers. a) Go through the steps of a significance test to determine whether or not candidate A won the election. b) Based on the above sample data, at 8:01pm the news organization reported their estimate of the percentage of votes candidate A received and the margin of error of their poll. Calculate these numbers. They then aired their prediction that candidate A won the election. Discuss any concerns you have with their decision to report their prediction.
Lilo wants to know if equal proportions of students in her class know how to surf well, know how to surf a little or do not know how to surf. She randomly samples 60 students in her class and asks them if they know how to surf. Twenty students indicate that they do not know how to surf 'don't know', while 30 students indicate they know how to surf well 'know well,' and 10 students indicate they know how to surf ‘a little’. State the hypothesis being tested by Lilo (H0 and HA)? Test Lilo's hypothesis at α of .05. Enter the test statistic, critical value, and decision as part of your answer. Test statistic = Critical value = Do you reject or retain the null hypothesis that the slope is not different from zero? (Enter "Reject" or "Retain"):
A principal wants to learn how students studied for the EOCs. Explain how the principal could poll the participants if she wanted to use a cluster sample.
4) You know that 70 percent of the subs at theme parks in the US are yellow. There are 220 subs in theme parks in the US. You are in a contest where you select sub names from a hat and record the name of the theme park sub. (No replacement ). You win a prize if you select a greater percentage of yellow subs than 90% of your many many competitors. What percentage of yellow subs do you need to select?
a barangay consisting of 720 families are categorized by the # of family members. determine the sampling error on selecting 300 families, there are 300 families consisting of 3 members, 200 families consisting of 4 members and 220 families consisting of 5 members.(express answer in % form and in 2 decimal places)(show complete solution)
9873 people were phoned and asked whether they liked their state's flag or whether they wanted it to be changed. 5137 people wanted to change their state's flag and 720 people said that they did not know their state's flag or had no opinion What percentage of the sample likes their state's flag?
george wants to reserach how many people cheat on their yearly taxes . He asks 10 people at his university if they cheat if they cheat while giving the taxes . list 3 reasons why this is an example of bad sampling strategy
The local newspaper selected 1500 residents of Claremore residents to poll about a proposed tax increase. What is the population that they are studying? What is the sample involved in the study? If they chose to divide the city by elementary school attendance area and then contacted 7 people in each area asking whether they support the tax increase, what method of sampling would they be using? If they placed a link on their website that interested parties could report whether they support the tax increase, what method of sampling would they be using? Let’s assume that on that web page, there were 437 who supported the tax increase and 354 who did not. What is the sample proportion?
A researcher is interested in determining the spending habits of the employees in a particularly large law firm . The researcher wants to gather information from at least 50 of the 167 employees . Assume the researcher has complete control over how to pick the residents to collect this data. In the box below, pick a sampling method: Random, Stratified, SystematicCluster, or Voluntary, and describe how to use it in this scenario to collect a sample that will represent the whole law firm Your description should show understanding of the method you chose and be in the context of this scenario - not just a definition of the type of sampling.
A researcher wants to survey 2000 Americans for an obesity study. Match the strategies to their corresponding sampling techniques. The researcher posts the survey on the Internet the survey question and waits until 2000 people have responded. The researcher picks 20 different small groups:a church group a Democrat club a student club etc. each containing 100 people. Then the researcher makes sure that everyone from each group answers the survey question. The researcher gets the complete list from the Census Bureau and surveys every 1500th person on the list. The researcher makes sure that the proportion of respondents from each state matches the proportion of each state's population to the US population. The researcher gets the complete list from the Census Bureau and uses a computer to randomly select 2000 people. Stratified Sampling Systematic Sampling Cluster Sampling Convenience Sampling Simple Random Sampling