Critical Thinking: What does the survey tell us? Surveys have become an integral part of our lives. Because it is so important that every citizen has the ability to interpret survey results, surveys are the focus of this project. Use the followlng. A Gallup poll of 3297 U.S. adults showed that 54% of the respondents said it is unlikely that they would use a self-driving car. Analyzing the Data 1. Use the survey results to construct a 95% confidence inter- val estimate of the percentage of all U.S. adults who say they are unlikely to use self-driving cars. 2. Find the margin of error for this survey. How does it com- pare to this statement from Gallup: "For results based on the total sample of 3297 U.S. adults, the margin of sampling er- ror is ±2 percentage points at the 95% confidence level."? 3. Explain why or why not an online news website would be justified in publishing this claim: "Most U.S. adults say they are unlikely to use self-driving cars." 4. Assume that you are an online reporter. Write a description of the survey results for your website. 5. A common criticism of surveys is that they poll only a very small percentage of the population and therefore cannot be accurate. Given that a sample of size 3297 from a population of 256,338.241 adults is a sample that is only 0.001% of the population, is that sample size too small? Write a brief expla- nation of why the sample size of 3297 is or is not too small.

Suppose you wish to find out the answer to the age-old question, "Do people prefer Cola 1 or Cola 2?" You conduct a blind taste test in which individuals are randomly asked to drink one of the colas first, followed by the other cola, and then asked to disclose which drink they prefer. Results of your taste test indicate that 59 of 100 individuals prefer Cola 2. Complete parts a through c. (a) Conduct a hypothesis test (preferably using technology) Ho: p = po versus H₁: ppo for po = 0.48, 0.49, 0.50, 0.68, 0.69, 0.70 at the a= 0.05 level of significance. For which values of po do you not reject the null hypothesis? What do each of the values of po represent? Do not reject the null hypothesis for the values of po between (Type integers or decimals. Do not round.) O and inclusively.

There is some research to indicate that different dog breeds differ in emotionality. To consider these differences, a researcher administers a standard test of emotionality to 3 breeds of dogs (German Shepherd, Cocker Spaniel, and Chihuahua), with 4 dogs from each breed being tested. Higher scores mean higher emotionality. The results for the emotionality test scores appear below. Using the 7 steps of hypothesis testing, test the idea that there are differences in emotionality based on dog breed using α = .05   Emotionality Scores for Dogs German Shepherd Cocker Spaniel Chihuahua   6 0 10   1 4 12   7 0 9   2 0 8   T = 16  T = 4  T = 39  Gt = 59        N = 12       ∑x2 = 495 4. Decision Rule (Be sure to include your critical value) 5. Do your calculations 6. Make your decision 7. State your results in a sentence. Report your results in APA style including a measure of effect size. Be sure to include descriptive statistics (M).  8. Given your decision in #7, would…

1- Type II error occurs when a false null hypothesis is not rejected Select one: True False