Welcome

## Question 1 An article in the San Jose Mercury News stated thatstudents in the California state unive

Question 1 An article in the San Jose Mercury News stated thatstudents in the California state university system take 4.5years, on average, to finish their undergraduate degrees.Suppose you believe that the mean time is longer. Youconduct a survey of 49 students and obtain a sample meanof 5.1 with a sample standard deviation of 1.2 and thenperform a hypothesis at a 1% significance level using theCritical Value procedure.What is the null and alternate hypothesis for this hypothesistest?a Ho: ? = 4.5, Ha: ? > 5.1b Ho: ? = 4.5, Ha: ? < 5.1c Ho: ? = 4.5, Ha: ? > 4.5d Ho: ? = 4.5, Ha: ? < 4.5________ What is the numerical value of ? for this test?Enter answer as a 2 place decimal with a 0 to the leftof the decimal point.Do not enter answer as a percent.________ What is the appropriate distribution for performingthis test?az distributionbt distributioncEither distributiondNeither. This question does not depend onknowing the appropriate distribution.Select and enter the appropriate letter.________ What is the critical value for the test statistic?Enter answer as a 3 place decimal rounded to 3 decimalplaces.________ What is the numerical value of the test statistic? Enter answer as a decimal rounded to 1 decimalplace.________ Based upon the Hypothesis test what is yourdecision?aThere is insufficient evidence, based upon thedata, to accept the alternate hypothesis.bThere is sufficient evidence, based upon thedata, to accept the alternate hypothesis.cIt is not possible to make a decision (null oralternate), based upon the data.dA strong case could be made for either decision(null or alternate) based upon the data.________ Question 2 From Generation to Generation, the mean age whensmokers first start to smoke varies. However, thepopulation standard deviation of their ages remainsconstant of around 2.1 years. A survey of 40 smokersof this generation was done to see if the meanstarting age is less than 19. The sample mean was18.1. Do the data support the claim at a 5% level?What is the Null Hypothesis?aThe mean age of first starting to smoke is lessthan or equal to (< = ) 18.1bThe mean age of first starting to smoke isgreater than or equal to (> =) 18.1cThe mean age of first starting to smoke is notequal to (?) 19dThe mean age of first starting to smoke isgreater than or equal to(> =) 19eThe mean age of first starting to smoke is lessthan or equal to (< =) 19Enter the correct answer by selecting the appropriate letter without a decimal point.________ What is the Alternate Hypothesis?a The mean age of first starting to smoke is less than (< )18.1b The mean age of first starting to smoke is greater than(>) 18.1c The mean age of first starting to smoke is not equal to(?) 19d The mean age of first starting to smoke is greater than(> ) 19e The mean age of first starting to smoke is less than (