One population proportion test: Which of the following situations involves testing a claim about a single...
7,8,9 Question 7 One population proportion text: Which of the following Select One situations involves testing a claim about a single population 10 points proportion? A. A recent study estimated that 20% of all college students in the United States smoke. The head of Health Services at Goodheart University suspects that the proportion of smokers may be lower there B. A certain prescription allergy medicine is supposed to contin e nge of 246 parts per million (ppm) of a certain...
Example - Testing a claim (hypothesis test) for a single population proportion Example A sample of 1201 Mt SAC students found that 52.2% passes Beginning Alba. Test the claim at 5% significance that the success rate is lower than the overall success rate in mathematics at Mt SAC, which is 54.2% (Before you work this problem, ask yourself, "Why is this a proportion problem? 'ns 1201
please help with 4 & 6 3. For each of the following situations determine whether a one- or a two-tailed test is appropriate. Also, state the research and the null hypotheses. a. You are interested in finding out if the average household income of residents in your state is different from the national average household. According to the U.S. Census, for 2014, the national average household income is $53,657.15 b. You believe that students in small liberal arts colleges attend...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...