Suppose that ơ is known, for testing H0: µ=µ0 versus alternative of Ha: µ>µ0 (Given µa>µ0),...
Suppose that ơ is known, for testing H0: µ=µ0 versus alternative of Ha: µ>µ0 (Given µa>µ0), derive a formula to find the value of sample size n, for specified α and β.
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Suppose that ơ is known, for testing H0: µ=µ0 versus alternative
of Ha: µ>µ0 (Given µa>µ0),...
In testing H0: µ = 100 versus Ha: µ ╪ 100 versus using a sample size...
In testing H0: µ = 100 versus Ha: µ ╪ 100 versus using a sample size of 325, the value of the test statistic was found to be 2.16. The p-value (observed level of significance) is best approximated by 0.0154 0.9692 0.4846 0.0308 0.007
In testing H0: µ = 3 versus Ha: µ ¹ 3 when =3.5, s = 2.5,...
In testing H0: µ = 3 versus Ha: µ ¹ 3 when =3.5, s = 2.5, and n = 100, what is the p-value? a.0.0700 b.0.0228 c.0.0655 d.0.0456
Find the critical value for testing H0: ?H0: ? = 14.93 versus Ha: ?Ha: ? >...
Find the critical value for testing H0: ?H0: ? = 14.93 versus Ha: ?Ha: ? > 14.93 at significance level 0.005 for a sample of size 25. Round your final answer to three decimal places.
The five parts are: i. Null Hypothesis: H0 : µ =5.2 ii. Alternative Hypothesis: HA :...
The five parts are: i. Null Hypothesis: H0 : µ =5.2 ii. Alternative Hypothesis: HA : µ < 5.2 iii. Rejection Region: Reject H0 if t statistic <−t49,.05 =−1.677 iv. Test Statistics: t = Y−µ0 S/pn = 5−5.2 0.7/p50 =−2.0203 <−t49,.05 =−1.677 v. Conclusion. Reject H0 at α = 5%. The data support that the mean dissolved oxygen count of the water is less than the reading at this location over the past year. What is the p-value?
Suppose you want to test H0 : µ = 4 against Ha : µ > 4....
Suppose you want to test H0 : µ = 4 against Ha : µ > 4. In addition, suppose that σ = 5, n = 36, and you will reject H0 if x > 5 and accept H0 otherwise. (a) (6 pts) Find the power of this test against the alternative µ = 5.6. (b) (2 pts) Find the probability of a Type II error in this situation (just use your answer from part (a) to help you do this).
Suppose the null hypothesis is Ho : µ = 500 against Ha : > µ =...
Suppose the null hypothesis is Ho : µ = 500 against Ha : > µ = 500 , and the significance level for this testing is 0.05. The population in question is normally distributed with standard deviation 100. A random sample of size n=25 will be used. If the true alternative mean is 550, then the probability of committing the type II error is ____.
Suppose that X1, X2, . . . , Xn is an iid sample of N (0, σ2 ) observations, where σ 2 > 0 is unknown. Consider testing H0 : σ 2 = σ 2 0 versus H1 : σ 2 6= σ 2 0
Suppose that X1, X2, . . . , Xn is an iid sample of N (0, σ2
) observations, where σ
2 > 0 is
unknown. Consider testing
H0 : σ
2 = σ
2
0 versus H1 : σ
2
6= σ
2
0
;
where σ
2
0
is known.
(a) Derive a size α likelihood ratio test of H0 versus H1. Your rejection region should
be written in terms of a sufficient statistic.
(b) When the null...
4-116 Suppose we wish to test the hypothesi s Ho: u WILEY versus the alternative : > 85 where T-1...
4-116 Suppose we wish to test the hypothesi s Ho: u WILEY versus the alternative : > 85 where T-16. Suppose that the true mean is μ 86 and that in the practical context of the -85 that has practical problem this is not a departure from μ0 significance (a) For a test with α 0.01, compute β for the sample sizes n-25, 100, 400, and 2500 assuming that μ-86 (b) Suppose the sample average is x - 86. Find...
need help: Suppose that you are testing the hypotheses H0 με 16 vs. HA: μ< 16....
need help:
Suppose that you are testing the hypotheses H0 με 16 vs. HA: μ< 16. A sample of size 16 results in a sample mean of 15.5 and a sample standard deviation of 20 a) What is the standard error of the mean? b) What is the critical value of t* for a 90% confidence interval? c) Construct a 90% confidence interval for μ. d) Based on the confidence interval, at α#0.05 can you reject Ho? Explain. a) The...
4-116 Suppose we wish to test the hypothesi s Ho: u WILEY versus the alternative : > 85 where T-16. Suppose that the true mean is μ 86 and that in the practical context of the -85 that has practical problem this is not a departure from μ0 significance (a) For a test with α 0.01, compute β for the sample sizes n-25, 100, 400, and 2500 assuming that μ-86 (b) Suppose the sample average is x - 86. Find...
need help:
Suppose that you are testing the hypotheses H0 με 16 vs. HA: μ< 16. A sample of size 16 results in a sample mean of 15.5 and a sample standard deviation of 20 a) What is the standard error of the mean? b) What is the critical value of t* for a 90% confidence interval? c) Construct a 90% confidence interval for μ. d) Based on the confidence interval, at α#0.05 can you reject Ho? Explain. a) The...
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