Ask Question
24 October, 20:48

In April and May of 2011, the Pew Research Center surveyed cell phone users about voice calls and text messaging. They surveyed a random sample of 1914 cell phone users. 75% of the sample use text messaging. The 95% confidence interval is (73.1%, 76.9%). Which of the following is an appropriate interpretation of the 95% confidence interval? A. There is a 95% probability that the proportion of all cell phone users who use text messaging is between 73.1% and 76.9%.

B. We can be 95% confident that the proportion of the sample who use text messaging is between 73.1% and 76.9%.

C. 95% of samples will have between 73.1% and 76.9% of respondents who use text messaging.

D. We can be 95% confident that the proportion of all cell phone users who use text messaging is between 73.1% and 76.9%.

+3
Answers (1)
  1. 24 October, 22:20
    0
    D. We can be 95% confident that the proportion of all cell phone users who use text messaging is between 73.1% and 76.9%.

    Step-by-step explanation:

    The interpretation of a confidence interval of level x% means that we are x% sure that the interval contains the true mean of the population.

    In this problem, we have that:

    The population are all the cell phone users.

    The 95% confidence interval is (73.1%, 76.9%).

    Which of the following is an appropriate interpretation of the 95% confidence interval?

    D. We can be 95% confident that the proportion of all cell phone users who use text messaging is between 73.1% and 76.9%.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “In April and May of 2011, the Pew Research Center surveyed cell phone users about voice calls and text messaging. They surveyed a random ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers