Two independent samples have been selected, 91 observations from population 1 and 57 observations from population 2. The sample means have been calculated to be ₁ = 8.8 and ₂ = 13.4. From previous experience with these populations, it isknown that the variances are o = 28 and o2 = 34.(a) Determine the rejection region for the test ofusing a = 0.02.(b) Compute the test statistic.The final conclusion isO A. We can reject Ho-OB. There is not sufficient evidence to reject Ho.(c) Construct a 98 % confidence interval for (₁-₂).< (μ1 −μ₂) <Ho (1H₂) = 2.84H₁ (₁₂) > 2.84

Let there be two independent populations.Given that,Sample size for population 1 Sample size for…

Answered: (a) Determine the rejection region for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Only 12% of registered voters voted in the last election. Will voter participation increase for the upcoming election? Of the 351 randomly selected registered voters surveyed, 53 of them will vote in the upcoming election. What can be concluded at the αα = 0.01 level of significance? For this study, we should use Select an answer z-test for a population proportion t-test for a population mean The null and alternative hypotheses would be: H0:H0: ? μ p Select an answer ≠ > = < (please enter a decimal) H1:H1: ? μ p Select an answer > ≠ < = (Please enter a decimal) The test statistic ? z t = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is ? > ≤ αα Based on this, we should Select an answer reject accept fail to reject the null hypothesis. Thus, the final conclusion is that
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Give a 98% confidence interval, for μ1−μ2 given the following information. n1=45 xbar1=2.62, s1=0.8n2=60n xbar = 3.02, s2=0.67 ____ ±± ____ Use Technology Rounded to 2 decimal places.
find the p-value for the hypothesis test with the standard test statistic z. decide whether to reject H0 for the level of significanceα 14. Left-tailed test (z=-1.55, α=0.05) 16. Right-tailed test (z=1.23, α=0.10) 18. Two-tailed test (z=1.95, α=0.08)
Just question 3 fill in the blank
A sample of n=17n=17 data values randomly collected from a normally distributed population has standard deviation s=3s=3. We wish to test the null hypothesis H0:σ=2.3H0:σ=2.3 against the alternative hypothesis H1:σ>2.3H1:σ>2.3 at a significance of α=0.05α=0.05. What is the value of the test statistic? Write your answer rounded to 3 decimal places. What is the critical value? Write your answer rounded to 3 decimal places. Do we reject the null hypothesis? We reject the null hypothesis. We fail to reject the null hypothesis.
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(a) Determine the rejection region for the test of using a =0.02. (b) Compute the test statistic. The final conclusion is A. We can reject Ho. B. There is not sufficient evidence to reject Ho. (c) Construct a 98% confidence interval for (1-₂). ·lu Ho (12) 2.84 H₁ (₁2) 2.84 :