1. Increased levels of methyl malonic acid have been observed in urine samples of people with Cronh disease. In the experiment, urine samples collected from healthy people were used as the control group, while urine samples of people with Cronh disease were collected in the experimental group. Interpret the following SPSS outputs and state the stages of the test and why it was used, and then whether there is a significant difference between the two groups (a = 0.05). Methyl malonic acid (mg/mmol) Groups 2.0 Experiment 3.0 Experiment 3.0 Experiment 5.0 Experiment 5.2 Experiment 5.9 Experiment 6.1 Experiment 10.9 Experiment 2.1 Control 1.5 Control 3.3 Control
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
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