Two different brands of contact lenses are to be compared for length, in hours, of comfortable wear. The lenses are available in any prescription.
How might an experiment resulting in paired data be carried out?
________________________________________________________
How might an independent samples experiment be carried out?
________________________________________________________
Which method would you recommend, and why?
________________________________________________________

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The Answer of Two different brands of contact lenses are to be compared for length, in hours, of comfortable wear. The lenses are available in any prescription.
How might an experiment resulting in paired data be carried out?
________________________________________________________
How might an independent samples experiment be carried out?
________________________________________________________
Which method would you recommend, and why?
________________________________________________________

Two Different Brands of Contact Lenses Are to Be Compared