(Solution) 16 Given The Following Hypothesis: = 100 H1: 100 A Randon Sample Of Six Resulted In The Following Values: | Snapessays.com

(Solution) 16 Given the following hypothesis: = 100 H1: 100 A randon sample of six resulted in the following values:

16 Given the following hypothesis:



H0: µ = 100


H1: µ ? 100



A randon sample of six resulted in the following values: 118, 105, 112, 119, 105, and 111.


Assume a normal population. Using the .05 significance level, can we conclude the


mean is different from 100 ?



a. State the decision rule.



b. Compute the value of the test statistic.



c. What is your decision regarding the null hypothesis ?



d. Estimate the p-value




18 The liquid chlorine added to swimming pools to combat algae has a relatively short shelf


life before loses its effectiveness. Records indicate that the mean sholf life of a 5-gallon


jug of chlorine is 2,160 hours (90 days). As a experiment, Holdlonger was added to the


chlorine to find whether it would increase the shelf life. A sample of nine jugs of


chlorine had these shelf lives( in hours): df



2159 2170 2180 2179 2160 2167 2171 2181 2185



At the .025 level, has Holdlonger increase the self life of the chlorine ? Estimate the p-value.




20 Hugger Polls contends that as agent conducts a men of 53 in-depth home surveys


every week. A streamlined survey form has been introduced, and Hugger wants to


evaluate its effectiveness. The number of in-depth surveys conducted during a week by a


rendom sample of agents are:



53 57 50 55 58 54 60 52 59


62 60 60 51 59 56



At the .05 level of significance, can we conclude that the mean number of interviews


conducted by the agents is more than 53 per week? Estimate the 9-value.




46 For a recent year, the mean fare to fly from Charlotte, North Carolina, to Seattle, Washington,


on a discount ticket was $ 267. A random sample of round-trip discount fares on this


route last month givs:



$321 $286 $290 $330 $310 $250 $270 $280 $299


$265 $291 $275 $281



At the .01 significabce level, cn we conclude that the mean fare has increased ?


What is the p-value ?




56 The cost of weddings in the united States has skyrocketed in the recent years. As a result,


many couples are opting to have their wedding in the Caribbean. A caribbean vacation


resort recently advertised in Bride Magazine that the cost of a Carribbean wedding was less


than $ 10, 000. Listed below is a total cost in $000 for a sample of 8 Caribbean weddings.



9.7 9.4 11.7 9.0 9.1 10.5 9.1 9.8



At the .05 significance level is it reasonable to conclude the mean wedding cost is less


than $ 10,000 as advertised ?


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This question was answered on: May 23, 2022

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May 23, 2022





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