The same Gallup Poll data from Exercise 29 also reported that 33% of those surveyed rated the
Question:
The same Gallup Poll data from Exercise 29 also reported that 33% of those surveyed rated the economy as “Poor.” The same media outlet claimed the true proportion to be 30%. Does the Gallup Poll support this claim?
a) Find a 95% confidence interval for the sample proportion of U.S. adults who rated the economy as “Poor.” Check conditions.
b) Does your confidence interval provide evidence to support the claim?
c) What is the significance level of the test in part (b)? Explain.
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a Conditions are satisfied a random sample less th...View the full answer
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Vishal Bandi
My teaching career started when I was in first year college, where i was a part of team which taught local kids in Pilani. I was really good with Math since young and hence I went ahead to join that team where I had to teach a class 12 student with her Math (it was mostly calculus that I taught her). It gave me immense satisfaction on knowing that she cracked her 12th exams with a really good score and ended up getting a MSC degree offer at BITS itself. I continued taking time out every single day to teach kids at Pilani throughout my 4 years. Later i joined a PG program in Big Data Engineering where I was helping out fellow students of the course which further increased my love for teaching. Since then I never looked back and took up teaching full time for neighboring kids and a couple of online forums on social media. I have been online tutoring for students (mostly classes 10 to 12 and bachelors) for more than 3 years now. Being good with math, I always was able to help students with Calculus, Statistics, R programming and a couple of Math focused courses in Electrical Engineering. I like one to one based tutoring compared to the written lessons because it gives the students an opportunity to discuss and get their doubts resolved there itself, however I do understand that students sometimes would want the written explanations and I am pretty flexible on switching between these two options. Given a chance I would love to share my experience and expertise with students of SolutionInn and help them improve not only their grades but their conceptual understanding as a whole.
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Business Statistics
ISBN: 9780133899122
3rd Canadian Edition
Authors: Norean D. Sharpe, Richard D. De Veaux, Paul F. Velleman, David Wright
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