What is the complete hypothesis test for: Men’s personal care products cost more than ladies personal care products.
The null hypothesis is defined as the test conducted under homogeneous conditions for its possible rejection under the assumption that it is true. It can be one-tailed to two-tailed. Any alternate statement to the null hypothesis is the alternative hypothesis.
The first step of a test of significance requires making an assumption regarding the parameter. This assumption is known as null hypothesis. According to prof. R.A. Fisher, "null hypothesis is the hypothesis that is tested for possible rejection under the assumption that it is true". It is denoted by H0.
Any hypothesis which is complementary to the null is called the alternative hypothesis. It is usually denoted by H1. An alternative may be one-tailed(right or left-tailed) or two-tailed.
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