Simulated type I error rates (%) for three Wald Tests with different variance ratios when the numbers of product lots are unequal if f = 1.5.

Table 2: Simulated type I error rates (%) for three Wald Tests with different variance ratios when the numbers of product lots are unequal if f = 1.5.

n_T	n_R	$\frac{σ_{T}^{2}}{σ_{R}^{2}}$	Simulated type I error rate
n_T	n_R	$\frac{σ_{T}^{2}}{σ_{R}^{2}}$	CMLE	MWCMLE	UMWCMLE
10	6	0.25	2.97	4.7258	5.9699^*
		0.5	3.0607	4.7881	5.9839^*
		1.0	3.1977	4.8313	5.9892^*
		2.0	3.2077	4.7841	5.8667^*
		4.0	2.6001	4.0661	5.0568^*
10	25	0.25	4.0707	4.9179	5.4112^*
		0.5	4.2147	5.0159^*	5.4703^*
		1.0	4.3829	5.1207^*	5.5264^*
		2.0	4.5277	5.1431^*	5.4942^*
		4.0	4.2419	4.7668	5.0521^*
10	100	0.25	4.7472	5.1223^*	5.3247^*
		0.5	4.8388	5.1581^*	5.3271^*
		1.0	4.8699	5.1273^*	5.2587^*
		2.0	4.8994	5.0872^*	5.1927^*
		4.0	4.0	4.8087	4.8859^*
6	10	0.25	3.5843	4.9327	5.7657^*
		0.5	3.7697	5.0818^*	5.9048^*
		1.0	3.9773	5.2181^*	5.9956^*
		2.0	3.8526	5.0389^*	5.7476^*
		4.0	2.6982	3.6261	4.2085
25	10	0.25	3.3113	4.6766	5.5578^*
		0.5	3.3711	4.7027	5.5704^*
		1.0	3.447	4.7439	5.568^*
		2.0	3.5432	4.7785	5.5739^*
		4.0	3.6815	4.8036	5.4995^*
100	10	0.25	3.1975	4.5566	5.4537^*
		0.5	3.232	4.5989	5.484^*
		1.0	3.2616	4.626	5.4846^*
		2.0	3.3017	4.6427	5.5023^*
		5.5023^*	3.3697	4.6508	5.4714^*

^*: Simulated type I error rate is inflated.