Fill a form in 3 easy steps - less than 5 mins.
Posted: September 1st, 2023
STAT 200 Week 1 Homework Problems
1.1.4 To estimate the percentage of households in Connecticut which use fuel oil as a heating source, a researcher collects information from 1000 Connecticut households about what fuel is their heating source. State the individual, variable, population, sample, parameter, and statistic
1.1.8 The World Health Organization wishes to estimate the mean density of people per square kilometer, they collect data on 56 countries. State the individual, variable, population, sample, parameter, and statistic
1.2.4 You wish to determine the GPA of students at your school. Describe what process you would go through to collect a sample if you use a stratified sample.
1.3.4To evaluate whether a new fertilizer improves plant growth more than the old fertilizer, the fertilizer developer gives some plants the new fertilizer and others the old fertilizer. Is this an observation or an experiment? Why?
1.3.10A mathematics instructor wants to see if a computer homework system improves the scores of the students in the class. The instructor teaches two different sections of the same course. One section utilizes the computer homework system and the other section completes homework with paper and pencil. Are the two samples matched pairs or not? Why or why not?
1.3.16To determine if a new medication reduces headache pain, some patients are given the new medication and others are given a placebo. Neither the researchers nor the patients know who is taking the real medication and who is taking the placebo. Is this a blind experiment, double blind experiment, or neither? Why?
1.4.2Suppose a car dealership offers a low interest rate and a longer payoff period to customers or a high interest rate and a shorter payoff period to customers, and most customers choose the low interest rate and longer payoff period, does that mean that most customers want a lower interest rate? Explain.
1.4.8Suppose a telephone poll is conducted by contacting U.S. citizens via landlines about their view of gay marriage. Suppose over 50% of those called do not support gay marriage. Does that mean that you can say over 50% of all people in the U.S. do not support gay marriage? Explain
1.4.14An employee survey says, “Employees at this institution are very satisfied with working here. Please rate your satisfaction with the institution.” Discuss how this question could create bias.
2.1.4 In Connecticut households use gas, fuel oil, or electricity as a heating source. Table #2.1.7 shows the percentage of households that use one of these as their principle heating sources (“Electricity usage,” 2013), (“Fuel oil usage,” 2013), (“Gas usage,” 2013). Create a bar chart and pie chart of this data. State any findings you see from the graphs.
Table #2.1.7: Data of Household Heating Sources
Heating Source
Percentage
Electricity
15.3%
Fuel Oil
46.3%
Gas
35.6%
Other
2.8%
You Want Quality and That’s What We Deliver
Our writing team is assembled through a rigorous selection process, where we handpick accomplished writers with specialized expertise in distinct subject areas and a proven track record in academic writing. Each writer brings a unique blend of knowledge and skills to the table, ensuring that our content is not only informative but also engaging and accessible to a general college student audience
Competitive pricing is a cornerstone of our service, where we balance affordability with exceptional quality. In offering the best writers at rates that rival other writing services, we ensure that students can access top-notch content without breaking the bank unnecessarily. Our fair and transparent pricing structure is designed to provide value for money, making us a go-to choice for students seeking high-quality writing services at an affordable price.
Academic integrity is paramount to our writing service, which is why we produce original research and writing content for every paper. Each piece of work is carefully written from scratch, ensuring that every sentence, paragraph, and page is authentic and free from plagiarism. Our rigorous quality control process involves thorough scanning of every final draft, guaranteeing that the content meets the highest standards of originality and academic integrity. With keen attention to citation and referencing, we ensure that every source is properly credited, giving you complete peace of mind. We also have the best plagiarism checkers like safeassign and turnitin thus providing similarity score for each paper.
When you decide to place an order with Dissertation Help, here is what happens: