Question

test with hypotheses H0:μ=23,Ha:μ<23H0:μ=23,Ha:μ<23, sample size 57, and assumed population standard deviation 3 will reject H0H0...

test with hypotheses H0:μ=23,Ha:μ<23H0:μ=23,Ha:μ<23, sample size 57, and assumed population standard deviation 3 will reject H0H0 when x¯<22.35x¯<22.35. What is the power of this test against the alternative μ=21μ=21?
A. 0.3264
B. 0.9997
C. 0.6736
D. 0.0003

A test with hypotheses H0:μ=500,Ha:μ>500H0:μ=500,Ha:μ>500, sample size 64, and assumed population standard deviation 25 will reject H0H0 when x¯>505.14x¯>505.14. What is the power of this test against the alternative μ=510μ=510?
A. 0.94
B. 0.42
C. 0.58
D. 0.06

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Given the following null and alternate hypotheses: H0:μ≥4350 HA:μ<4350 α=0.05 If the true population mean is...
Given the following null and alternate hypotheses: H0:μ≥4350 HA:μ<4350 α=0.05 If the true population mean is actually 4337.1, assuming the population standard deviation is 200 and sample size is 100 calculate the power of the test? Round your answer to 4 decimal places.
Consider the following hypotheses: H0: μ = 23 HA: μ ≠ 23 The population is normally...
Consider the following hypotheses: H0: μ = 23 HA: μ ≠ 23 The population is normally distributed. A sample produces the following observations: (You may find it useful to reference the appropriate table: z table or t table) 26 25 23 27 27 21 24 a. Find the mean and the standard deviation. (Round your answers to 2 decimal places.) Mean    Standard Deviation b. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal...
You are given the following null and alternative hypotheses: H0: μ = 1.2 HA: μ ≠...
You are given the following null and alternative hypotheses: H0: μ = 1.2 HA: μ ≠ 1.2 α = 0.10 The true population mean is 1.25, the sample size is 60, and the population standard deviation is known to be 0.50. Calculate the probability of committing a Type II error and the power of the test.
The null and alternative about hypotheses a normal population N (μ, σ^2) is H0， μ=21 ,...
The null and alternative about hypotheses a normal population N (μ, σ^2) is H0， μ=21 , H1: μ<21. Choose a sample of size n=17 with X(average)= 23 and S^2 = (3.98)^2. The statistic we should use is____, the size of the lest. α=0.05 , and the result of the test is____H0.
Suppose the hypothesis test H0:μ=12H0:μ=12 against Ha:μ<12Ha:μ<12 is to be conducted using a random sample of...
Suppose the hypothesis test H0:μ=12H0:μ=12 against Ha:μ<12Ha:μ<12 is to be conducted using a random sample of n=44n=44 observations with significance level set as α=0.05α=0.05. Assume that population actually has a normal distribution with σ=6.σ=6. Determine the probability of making a Type-II error (failing to reject a false null hypothesis) given that the actual population mean is μ=9μ=9. P(Type-II error) ==
Consider the following hypothesis test. H0: μ ≥ 10 Ha: μ < 10 The sample size...
Consider the following hypothesis test. H0: μ ≥ 10 Ha: μ < 10 The sample size is 125 and the population standard deviation is assumed known with σ = 5. Use α = 0.05. (a) If the population mean is 9, what is the probability that the sample mean leads to the conclusion do not reject H0?  (Round your answer to four decimal places.) (b) What type of error would be made if the actual population mean is 9 and we...
Suppose you have the following null and alternative hypotheses: H0: μ = 81 and H1: μ...
Suppose you have the following null and alternative hypotheses: H0: μ = 81 and H1: μ ≠ 81. You collect a sample of data from a population that is normally distributed . The sample size is 19, the sample mean is 84.9, and the population standard deviation is 5.7. What is your p-value and conclusion? Test at a level of significance of 0.01. A. 0.0080, Do Not Reject B. 0.0029, Reject C. 0.0029, Do Not Reject D. 0.0064, Reject E....
Your research supervisor wants you to test the null hypothesis H0: μ = 50 against the...
Your research supervisor wants you to test the null hypothesis H0: μ = 50 against the one-sided alternative hypothesis Ha: μ > 50. The population has a normal distribution with a standard deviation of 12.0. You are told to use a sample size of 121 and a rejection region of x bar > 52 . a) What is the power of this test of significance under the alternative hypothesis that the mean  μ  is 53 .  State your answer to four digits to...
A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to...
A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the critical-value approach. , , n = 11, H0: μ = 18.7, Ha: μ ≠ 18.7, α = 0.05 Group of answer choices Test statistic: t = 1.03. Critical values: t = ±2.201. Do not reject H0. There is not sufficient evidence to conclude that...
A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to...
A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the critical-value approach. , , n = 18, H0: μ = 10, Ha: μ < 10, α = 0.01 Group of answer choices Test statistic: t = -4.43. Critical value: t = -2.33. Reject H0. There is sufficient evidence to support the claim that the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT