investigation hypothesises that cholesterol levels in children may be affected by educating parents on proper nutrition and exercise. The sample size is 40 families child aged 10-15 years old with high cholesterol. Children mean cholesterol is 175 stand deviation 19.5 is there significant evidenceo of a relation in total cholesterol/ null value is 191 cholestrol

Heights of 10 year old children regardless of gender, closely follow a normal distribution with a mean of 55” anda standard deviation of 4.5”. If the height requirement for Batman the Ride at Six Flags Magic Mountain is 54”.What percent of 10 year old children cannot ride on Batman the Ride?

PLEASE DO IN Excel  A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 and 29.  Participants in the study are randomly assigned to one of three exercise groups - Weight training, Aerobic exercise or Stretching/Yoga – and instructed to follow the program for 8 weeks.  Their HDL levels are measured after 8 weeks and are summarized below. Is there a significant difference in mean HDL levels among the exercise groups?  Run the test at a 5% level of significance.  HINT:  SSerror =  7286.5.      Exercise Group N Mean Std Dev   Weight Training 20 49.7 10.2   Aerobic Exercise 20 43.1 11.1   Stretching/Yoga 20 57 12.5           Step 1. Set up hypotheses and determine level of significance.   Ho:         H1:         alpha:                   Step 2. Select the appropriate test statistic and give its formula.…

The weights of students in a large statistics class vary according to a normal distribution with mean 145 pounds and standard deviation 18 pounds What percent of students weigh less than 127 ?