Mean, median , mode and standard deviation calculation using excel formulas:
Formula Reference:
Shape of the distribution:
the shape of the distribution is skewed to the left
The few smaller values bring the mean down, and again the median is minimally affected.When data are skewed left, the mean is smaller than the median.
Problem 6 (10 marks) Rainbow Trout, Inc. feeds fingerling trout in special ponds and markets them...
Problem 6 (10 marks) Rainbow Trout, Inc. feeds fingerling trout in special ponds and markets them when they attain a certain weight. A sample of 9 trouts were isolated in a pond and fed a special food mixture called “Grow Em Fast”. At the end of the experimental period, the weights of the trouts were (in grams): 124, 125, 123, 118, 125, 127, 125, 126 and 121. a) What is the mode? Justify properly your answer. (1 mark) b) What...
Problem 6 (10 marks) Rainbow Trout, Inc. feeds fingerling trout in special ponds and markets them when they attain a certain weight. A sample of 9 trouts were isolated in a pond and fed a special food mixture called "Grow Em Fast". At the end of the experimental period, the weights of the trouts were in grams): 124, 125, 123, 120, 124, 127, 125, 126 and 121. a) What is the mode? Justify properly your answer. (1 mark) b) What...
Rainbow Trout, Inc. feeds fingerling trout in special ponds and markets them when they attain a certain weight. A sample of 9 trouts were isolated in a pond and fed a special food mixture called “Grow Em Fast”. At the end of the experimental period, the weights of the trouts were (in grams): 124, 125, 123, 120, 124, 127, 125, 126 and 121. a) What is the mode? Justify properly your answer. (1 mark) b) What is the arithmetic mean?...
im having a hard time wirh this question please explain the solution with details Problem 6 (10 marks) Rainbow Trout, Inc. feeds fingerling trout in special ponds and markets them when they attain a certain weight. A sample of 9 trouts were isolated in a pond and fed a special food mixture called "Grow Em Fast". At the end of the experimental period, the weights of the trouts were in grams): 124, 125, 123, 120, 124, 127, 125, 126 and...
Problem 5 (7 marks) A survey of 36 retail stores revealed that the average price of a tablet was $375 with a standard deviation of $20. a) What is the 95% confidence interval to estimate the true cost of the tablet? (4 marks) b) What sample size would be needed to estimate the true average price of a tablet with an error of +5$ and a 99% confidence? (3 marks) Problem 6 (10 marks) Rainbow Trout, Inc. feeds fingerling trout...