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- _F _T_e_s_t _t_o _C_o_m_p_a_r_e _T_w_o _V_a_r_i_a_n_c_e_s
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- var.test(x, y, ratio = 1, alternative = "two.sided",
- conf.level = 0.95)
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- _A_r_g_u_m_e_n_t_s:
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- x, y : numeric vectors of data values.
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- ratio : the hypothesized ratio of the population
- variances of x and y.
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- alternative : indicates the alternative hypothesis and must
- be one of "two.sided", "greater" or "less".
- You can specify just the initial letter.
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- conf.level : confidence level for the returned confidence
- interval.
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- _D_e_s_c_r_i_p_t_i_o_n:
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- var.test performs an F test of the null that the ratio
- of the variances of the populations from which x and y
- were drawn is equal to ratio.
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