I need help with 1 c. Thanks.

1. Patient satisfaction. Scores derived from a patient satisfaction survey are Normally distributed with u = 50 and o = 7.5, with high scores indicating high satisfaction. An SR5 ofn = 36 is taken from this population. a) What is the standard error (SE) of x for these data? 7.5 3132 = = 1.25 J36 b) We seek to discover if a particular group of patients comes from this population in which u = 50. Sketch the curve that describes the sampling distribution of the sample mean under the null hypothesis. Mark the horizontal axis with values that are :1, i2, and :3 standard errors above and below the mean. c) Suppose in a sample of n = 36 from this particular group of patients the mean value ofx is 48.8. Mark this nding on the horizontal axis of your sketch. Then compute a 2 statistic for this scenario and make sure it matches your sketch