A July 2015 Gallup poll interviewed by phone a random sample of 1009 American adults; 675 said they were regular coffee drinkers. Describe the population and explain in words what the parameter p is. Give the numerical value of the statistic p^ that estimates p.
Added by John M.
Step 1
The population in this context consists of all American adults. This includes individuals aged 18 and older living in the United States, regardless of their coffee consumption habits. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Ivan Kochetkov and 92 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A newspaper reported that 70% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 500 adults. a. Identify the population of interest in this study. b. Identify the sample for the study. c. Identify the parameter of interest in the study. d. Find and interpret a 95% confidence interval for the parameter of interest. b. Identify the sample. Choose the correct answer below. adults a telephone survey 70% of adults newspapers 500 adults coffee shops c. Identify the parameter of interest. Choose the correct answer below. A. p, the population proportion of adults who say that some coffee shops are overpriced B. x̄, the sample mean number of adults who say that some coffee shops are overpriced C. p̂, the sample proportion of adults who say that some coffee shops are overpriced D. σ², the population variance of adults who say that some coffee shops are overpriced d. The 95% confidence interval for the parameter of interest is ( , ). (Round to two decimal places as needed.)
Ivan K.
According to some reports, the proportion of American adults who drink coffee daily is 0.54. Given that parameter, if samples of 500 are randomly drawn from the population of American adults, the mean and standard deviation of the sample proportion are _____, respectively. 0.54 and 0.498 270 and 124.2 0.54 and 11.145 0.54 and 0.0223
Jason H.
A newspaper reported that 25% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 80 adults. a. Identify the population of interest in this study. b. Identify the sample for the study. c. Identify the parameter of interest in the study. d. Find and interpret a 99% confidence interval for the parameter of interest. a. Identify the population of interest. Choose the correct answer below. 25% of adults adults a telephone survey coffee shops 80 adults newspapers b. Identify the sample. Choose the correct answer below. 80 adults adults newspapers coffee shops 25% of adults a telephone survey c. Identify the parameter of interest. Choose the correct answer below. A. p, the population proportion of adults who say that some coffee shops are overpriced B. p̂, the sample proportion of adults who say that some coffee shops are overpriced C. σ², the population variance of adults who say that some coffee shops are overpriced D. x̄, the sample mean number of adults who say that some coffee shops are overpriced d. The 99% confidence interval for the parameter of interest is ( , ). (Round to two decimal places as needed.)
Ana Carolina D.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD