T$-$Test

One$-$Sample Statistics

$\backslash$table$[[,N,$Mean,Std$.$ Deviation,Std$.$ Error Mean$],[$Odometer$,600,45237\mathrm{.}47,32649\mathrm{.}606,1332\mathrm{.}915]]$

One$-$Sample Test

Test Value $=50000$

$\backslash$table$[[,$t$,$df$,$Significance,$\backslash$table$[[$Mean$],[$Difference$]],\backslash$table$[[95\%$ Confidence Interval of the$],[$Difference$]]],[,$One$-$Sided p$,$Two$-$Sided p$,$Lower,Upper$],[$Odometer

Is there evidence that the mean PRICE of all cars is different than $$13,400?$ Use $=0\mathrm{.}08.$

Step $1$: Ho: $u=50000$

$Ha$ :

Step $2$: Is it One sided or Two$-$sided?

Step $3$: Find the t$-$test critical value

State the decision rule

Step $4$: Make conclusion with the two approach

$=>$ T$-$Test

Group Statistics

$\backslash$table$[[,$Engine,$N,$Mean,Std$.$ Deviation,Std$.$ Error Mean$],[$Odometer$,4,468,45252\mathrm{.}67,33110\mathrm{.}919,1530\mathrm{.}553],[,6,132,45183\mathrm{.}58,31080\mathrm{.}304,2705\mathrm{.}193]]$

$\backslash$table$[[$Independent Samples Test$],[,,\backslash$table$[[$Levene$\text{'}$s Test for Equality of$],[$Variances$]],$t$-$test for Equality of Means$],[,,F,$Sig.,$t,$df$,$Significance,$\backslash$table$[[$Mean$],[$Difference$]],\backslash$table$[[$Std$.$ Error$],[$Difference$]],\backslash$table$[[95\%$ Confidence Interval of the$],[$Difference$]]],[,,$One$-$Sided p$,$Two$-$Sided p$,$Lower,Upper$],[$Odometer$,$Equal variances assumed,$1\mathrm{.}739,\mathrm{.}188,\mathrm{.}021,598,\mathrm{.}491,\mathrm{.}983,69\mathrm{.}085,3220\mathrm{.}374,-6255\mathrm{.}532,6393\mathrm{.}703],[\backslash$table$[[$Equal variances not$],[$assumed$]],,,\mathrm{.}022,221\mathrm{.}914,\mathrm{.}491,\mathrm{.}982,69\mathrm{.}085,3108\mathrm{.}161,-6056\mathrm{.}203,6194\mathrm{.}374]]$

Is there evidence that the population mean ODOMETER READING of $4-$cylinder cars is greater than that of $6-$cylinder cars? Use $=0\mathrm{.}10.$

Reject or Do not Reject?

Which equal variance will be selected?

One$-$sided or Two$-$sided? URGENR! Please answer all of the following questions. Thank you