12 A random sample of pre-school children was taken. Each child was asked to draw a nickel. The diameter ofthe nickel drawn was recorded. Their parents' incomes were recorded. The mean diameter of the childrenfrom lower income families was compared to the mean diameter of the children from high income families.Test the claim that the mean nickel diameter drawn by children from the lower income group is larger thanthe mean nickel diameter drawn by children from the high income group. Use a significance level of 0.1.For the lower income group, = 23.88, s = 5.617, n = 40.For the high income group, = 19.97, s = 3.276, n = 35.%3DThe population standard deviations are unknown and assumed unequal.a) If we use L to denote the low income group and H to denote the high income group, identify thecorrect alternative hypothesis.O Ha: HL # HHHa: HL < HHΟ Η: μι > μΗНа : PL <РнHa:PL + PHО На: рL > рнb) The test statistic value is:c) Based on this, weO Reject HoO Fail to reject Ho

Name: 12 A random sample of pre-school children was taken. Each child was as
Uploaded: 2024-03-20T06:46:14.000Z
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Description: 12 A random sample of pre-school children was taken. Each child was asked to draw a nickel. The diameter ofthe nickel drawn was recorded. Their parents' incomes were recorded. The mean diameter of the childrenfrom lower income families was compared t