Chat with AIExam 9: Statistical Hypothesis Testing: Hypothesis Tests for a Population Mean
Exam 1: An Introduction to Statistics44 Questions
Exam 2: Descriptive Statistics I: Elementary Data Presentation and Description147 Questions
Exam 3: Descriptive Statistics II: Additional Descriptive Measures and Data Displays128 Questions
Exam 4: Probability147 Questions
Exam 5: Discrete Probability Distributions144 Questions
Exam 6: Continuous Probability Distributions141 Questions
Exam 7: Statistical Inference: Estimating a Population Mean134 Questions
Exam 8: Interval Estimates for Proportions, Mean Differences and Proportion Differences19 Questions
Exam 9: Statistical Hypothesis Testing: Hypothesis Tests for a Population Mean62 Questions
Exam 10: Hypothesis Tests for Proportions, Mean Differences and Proportion Differences39 Questions
Exam 11: Basic Regression Analysis111 Questions
Exam 12: Multiple Regression53 Questions
Exam 13: F Tests and Analysis of Variance95 Questions
Exam 14: Experimental Designonline Only64 Questions
Exam 16: Chi-Square Tests145 Questions
Select questions type
In 2011, adults who used text messaging on their cell phones sent and received an average of 41.5 texts per day (Source: PewInternet.org).You would like to determine whether there is evidence of an increase since 2011 in the average number of texts sent and received.Taking the "status quo" approach to form your null hypothesis, what would be the appropriate pair of hypotheses for your test?
(Multiple Choice)
4.8/5 
(30)
(30) 
Filters
- Essay(0)
- Multiple Choice(0)
- Short Answer(0)
- True False(0)
- Matching(0)