99% CI\'s are narrower than the corresponding 95% CI\'s G sample means of 32 pro

Question

99% CI's are narrower than the corresponding 95% CI's G sample means of 32 proves that the corresponding population means in smaller then 35. If the quest be rejected at alpha = 0.05, then are count reject at alpha = 0.01 when one count reject at alpha = 0.01, then are count reject at alpha = 0.05 If n = 64, x = 100, s = 16, then a 99% CI for mu is from 94.84 to 105.16. (nearest hembredth). Increasing a sample size solutions the CI. Flowering confidence wides CI's. The interval 84 to 96 has half-length 6. reference (in statistics courses) involves using to estimate statistics. If n = 20, x = 88, s = 10, a 95% CI for is 83.62 t 92.38. The best guess for a population mean, mu, is the sample mean, x. If a true population mean is 200, then a sample mean from that population could not be 150. A surv has about 95.4490 of its values within 2 standard deviation of its mean. Buy normal random variable has about 95.4490 of its values within two standard deviations of its mean. Both the mean and median for a sari have value O. If x has mean 80 and standard deviation 8, then the z value for x = 120 is 4.5. If x is binomial with n = 72 and p = 2/3, then mu_x = 48. as in #37, sigma_x = 16. If z_c = -2.33 and z_0 = -3, then at infinity = 0.01, a claimed value was too large. If z_c = 1.64 and z_0 = 0.87 then at infinity = 0.05, one cannot safely conclude that a claimed value was too small. If x = 500 and the claimed value for mu is 400, then the true value for mu must be more than 400.

Explanation / Answer

21. True

since 99% condfidence interval more wider (range) than 95% confidence interval.

22. False

Sample mean is corresponding to Population when sample size n is Fa large

23. False

24. True

25 True

since

Margin of error, E = 5.312295

99% Confident the population mean is within the range:
94.6877 < mean <105.3123

26) False

since sample size reduced then CI is wider range

27) True

28) True

29) False

Margin of error, E = 5.678463

98% Confident the population mean is within the range:
82.32154 < mean <93.67846

31) True

Since sample mean is point estimate to population mean

32) False

33) True

P(mean - 2Sd < mean + 2SD) = 0.9544 in normal distribution

34) True

35) True

Since in Standard normal distribution

36) False

Z vlaue = (120-80)/8 = 5

37) True

Since np = 72*(2/3)= 48

38) True

SD = npq = 72*(2/3)*(1/3) = 16

39) True

40) True

41) False

It is depends on the size of the sample

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