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Because schizophrenia is tricky to diagnose, numbers on its prevalence vary. but experts estimate it affects about 2.4 million Americans. The disorder affects more men than women. 1.4 to 1. Age of onset for men tends to be in the late teens to early 205: for women. onset typically occurs in the early 205 to early 305. Experts believe this has something to do with the pruning of neurons. a process that takes place after birth in babies. which happens later for women than for men. (Bhandari 2021). People with schizophrenia experience what's called a psychotic break. which is the onset of psychosis: It's when their mind is overtaken by hallucinations and/or delusions that make it hard to know what's real and what's not. But while the word break sounds sudden, symptoms of schizophrenia does not happen in a single traumatic moment. Instead. they are usually gradual and can progress for years, and they can be easy to dismiss. Essentially. a t-test allows us to compare the average values of the two data sets and determine if they came from the same population. in the above ales. if we were to take a sample of students from class A and another sample of students from class B, we would not expect them to have exactly the same mean and standard deviation. Similarly, samples taken from the placebo-fed control group and those taken from the drug prescribed group should have a slightly different mean and standard deviation. Mathematically. the t-test takes a sample from each of the two sets and establishes the problem statement by assuming a null hypothesis that the two means are equal. Based on the applicable formulas. certain values are calculated and compared against the standard values. and the assumed null hypothesis is accepted or rejected accordingly. If the null hypothesis qualies to be rejected. it indicates that data readings are strong and are probably not due to chance. The t-test is just one of many tests used for this purpose. Statisticians must additionally use tests other than the ttest to examine more variables and tests with largersarnple sizes. For a large sample size. statisticians use a z-test, Other testing options include the chi-square test and the f-test. References: Bhandari. MD. 5. (January 2021). Schizophrenia: Definition. symptoms. causes. diagnosis, treatment. WebMD. mmmmmmmammmm r: . Samuels M.. Witmer J.. St Schai'fner A. (2015). Statistics for the Life Sciences. [\\talSource Bookshelf]. Retrieved from https:l/online.vitalsource.coml#fbooks/9780134150413/