Please use all steps

13) In a modeling agency , a researcher wishes to see If the average height of models is really less than 67 Inches , as the chief claims. A random sample of 20 models has an average helant of 65 .8 inches . The standard deviation of the sample is1. 7 inches . Ate = 0. 05 , Is the average height of the Kian models really less than 67 inches? Assume the population is normally distributed 1) state hypothesis le mea 2) identify claim value . 3 Find critical values ( no P method ) for the r 5 Decision it the conclusion 1. for the rt the val