Part a) What is the parameter of interest in this study? The difference in the mean IQ of seventh grade grade boys and girls at Vancouver Hill Elementary School.The difference in the mean IQ of the children taken in the sample from Vancouver Hill Elementary School.The mean IQ of boys and girls at Vancouver Hill Elementary School.The difference in the variances of IQ of the boys and girls taken in the sample from Vancouver Hill Elementary School.The mean IQ of children at elementary schools in Canada. Part b) Based on the data provided, what is your estimate of this parameter? Part c) In testing a hypothesis about the parameter of interest, what would your null hypothesis be? There is a difference in the mean IQ for boys and girls at Vancouver Hill Elementary School.There is no difference in the mean IQ for seventh grade boys and girls at Vancouver Hill Elementary School.The difference between the mean IQ of seventh grade boys and girls is 1.6.The mean difference between the IQ of a seventh grade boy at Vancouver Hill Secondary School and the IQ of a seventh grade girl at the same school is 1.6.The mean IQ of seventh grade boys at Vancouver Hill Elementary School is greater than the mean IQ of seventh grade girls at the same school. Part d) You would take the alternative hypothesis to be: two-sidedone-sided, left-tailedone-sided, right-tailedit does not matter whether we take a one-sided or two-sided alternative Part e) Which of the test statistics (A - D) you would choose to test your hypotheses? ? A B C D
You can earn partial credit on this problem.