Significance level

A large department store hired a researcher to compare the average purchase amounts for the downtown store with that of its mall store.  The information shown was obtained.  At the 0.01 significance level can it be concluded that the mean amount spent at the mall store is larger?Estimate the p-value?Average purchase amount  Downtown store $36.00  Mall store $40.00Sample standard deviation Downtown store $10.00  Mall store $10.00Sample SizeDowntown store  10   Mall store  $10.00

Stats

An independent government agency is interested in comparing the heating is interested in comparing the heating cost of all-electric home and those of home heated with natural gas.  A sample of eight all-electric homes is matched with eight homes of similar size and other features that use natural gas.  The heating costs for January are obtained for each home.  At the 0.05 significance level is there reason to believe there is a difference in heating costs?Matched     Electric       Gas Pair         Heat          Heat1            265           2602            271           2703            260           2504            250           2555            248           2506            280           2... click for more

male to female graduates

Perform a 5 step hypothesis of number of males and females 25 to 29 years of age with bachelor degrees. 1% tcrit. ( percentage expressed using decimals ) Year Subjects Males Females 2003 1 .50 .53 2004 2 .49 .52 2005 3 .48 .52 2006 4 .47 .51 2007 5 .47 .51

Numerical Analysis

The problem I need solved is attached. Please provide as much detail as possible, so I can understand. Thanks

Matlab

See the attachment for equation - use Matlab