One survey has been done on the MIIT campus to determine the heights of female students. The average height of the students was stated as 160cm. To check whether this average is correct, you formulate a statistical test. Define your null and alternate hypotheses.a.H0: µ ≥ 160cm  and H1: µ < 160cmb.H0: µ = 160cm  and H1: µ ≠ 160cmc.H0: µ = 160cm  and H1: µ > 160cmd.H0: µ = 160cm  and H1: µ < 160cm

In a class of 50 boys and 30 girls, the average heights of the two groups of boys and girls are 150 cm and 140 cm respectively. The average height of the class isQuestion 18Answera.146.5b.146.25c.146d.146.75

Which of the following represents the null and alternative hypotheses of the mean height of women is less  than 64

1. Mapalad Integrated High School determined students’Body Mass Index (BMI) at the opening of classes. It hasbeen recorded that the average height of female students is154.2 centimeters with a standard deviation of 9centimeters. The researcher conducted her own study andshe randomly selected 40 female students. In her study,she got an average of 156.7 centimeters. Is there a reasonto believe the claims of the school? Use 5% level ofsignificance in testing the hypothesis.

The average height of a group of students was 134.4 cm.When Mr Lim measured and recorded the height of these students, he wronglyrecorded one student's height as 193 cm when it should have been 139 cm.As a result, Mr Lim calculated the average height as 143.4 cm.How many students were there in the group?

What kind of hypothesis test is appropriate to determine if the proportion of senior male students' height is significantly higher than that of senior female students?*1 pointTwo-tailed testPaired testIndependent testOne-tailed test