Question

hi can you please help me find the claim

two samples are independent and that they Test the indicated claim about the means of two populations. Assume that the two have been randomly selected. 3) Two types of flares are tested for their burning times in minutes) and sample results given below. times (in minutes) and sample results are 3) Brand X Brand Y n=35 n 40 * = 19.4 x = 15.1 8-14 $ 0.8 Refer to the sample data to test the claim that the two populations have equal means. Use 0.05 significance level. 1) claim M, = M₂ - CASO 1.042 2) Ho: M. = Me 3) Hi Moz M₂ ~ Two tail 4) t = -0022 DH: 34 10.025 -2.0.32 - 2.032 ) fail to reglect Ho: Case 2 ?) Not Surhicient evident to repeat the claim M, M2 900 4) A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to test the claim that the treatment population mean 1 is smaller than the control population mean 12. Test the claim using a significance level of 0.01. Treatment Group ni -85 X1 - 189.1 91-387 Control Group n2 -75 x2 - 203.7 2 = 39.2

Answer 1

Solution-3:

CLiam stated that two populations have equal means

Null hypothesis:Ho:

U Brandx = ll Brandy

Alternative hypothesis:H1:

Brandx + Brandy

two tail t test

Null hypothesis is the claim

Use ti 83 calculator to get t and p value

Solution-4:

Null hypothesis:Ho:

μι = μ2

Alternative hypothesis:H1

μι < μ2

left tail t test

Here Alternative hypothesis is the claim