Table 7 Optimal replications (rounded to the nearest integer) of n that minimize the variance of $\widehat{\theta }$ subject to cost constraints.

0.6

62

72

83

92

142

193

266

0.01

0.7

50

58

66

74

114

155

213

0.8

38

44

52

57

88

118

163

0.6

16

19

21

24

36

49

67

0.04

0.7

13

15

17

19

29

39

54

0.8

10

12

14

15

23

30

42

0.6

7

8

9

10

15

20

28

0.10

0.7

6

7

8

8

12

17

22

0.8

5

5

6

7

10

13

17

θ

ρ

0.6

5

6

7

7

11

14

19

0.15

0.7

4

5

5

6

9

11

15

0.8

3

4

4

5

7

9

12

0.6

3

3

4

4

6

8

10

0.30

0.7

3

3

3

4

5

6

9

0.8

2

2

3

3

4

5

8

0.6

3

3

3

3

5

6

8

0.40

0.7

2

2

3

3

4

5

7

0.8

2

2

2

2

3

4

5