Unit 3 Exam Practice Problems Chapters 9 & 14 Chapter 9 Ho: μ20 Consider the following hypothesis test: 1. H1: H20 A sample of 50 provided a sample mean of 19.4. The population standard deviation is...

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Extracted text: Unit 3 Exam Practice Problems Chapters 9 & 14 Chapter 9 Ho: μ20 Consider the following hypothesis test: 1. H1: H20 A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2. a. Compute the value of the test statistic. b. What is the p-value? c. Using a .05, what is your conclusion? d. What is the rejection rule using the critical value? What is your conclusion? Ho: μ245 Consider the following hypothesis test: 2. H1: H<45 a="" sample="" of="" 36="" is="" used.="" identify="" the="" p-value="" and="" state="" your="" conclusion="" for="" each="" of="" the="" following="" sample="" results.="" use="" a=".01." x="44" and="" s="5.2" a.="" b.="" x="" 43="" and="" s="4.6" 5.0="" x46="" and="" s="" c.="" ten="" years="" ago="" 53="" %="" of="" american="" families="" owned="" stocks="" or="" stock="" funds.="" sample="" data="" collected="" by="" the="" investment="" company="" institute="" indicate="" that="" the="" percentage="" is="" now="" 46%="" (the="" wall="" street="" journal.="" october="" 5,="" 2012).="" 3.="" develop="" appropriate="" hypotheses="" such="" that="" rejection="" of="" ho="" will="" support="" the="" conclusion="" that="" a="" smaller="" proportion="" of="" american="" families="" own="" stocks="" or="" stock="" funds="" in="" 2012="" than="" 10="" years="" ago.="" a.="" assume="" that="" the="" investment="" company="" institute="" sampled="" 300="" american="" families="" to="" estimate="" the="" percent="" owning="" stocks="" or="" stock="" funds="" was="" 46%="" in="" 2012.="" what="" is="" the="" p-value="" for="" your="" hypothesis="" test?="" at="" a="" .01,="" what="" is="" your="" conclusion?="" b.="" c.="" chapter="">