The weights of four randomly and independently selected bags of potatoes labeled 20 pounds were found to be 215, 221. 203 and 212. Assume Normality 

a). Using a two-sided alternative hypothesis, should you be able to reject the hypothesis that the population mean is 20 pounds using a significance level of 0.05? Why or why not? The confidence Interval is reported here I am 95% confident the population mean is between 20.1 and 22.5 pounds. 

b). Test the hypothesis that the population mean is not 20 Use a significance level of 0.05. 

c). Choose one of the following conclusions H20 H-20 H20 The test statistics (Round to two decimal places as needed) 

i).  We cannot reject a population mean of 20 pounds 

ii). We can reject a population mean of 20 pounds 

iii). The population mean is 21.275 poundsrnrn

Answer rating: 100% (QA)

Answer The test statistic is 420 Solution Here we have to use one sample t t... View the full answer