For an F-test the null hypothesis is
Ho:β1=β2=0
Then alternative is
H1:β1=!β2=!0
Ans:C) β1=!0 and β2=!0
When performing an F-test, if the null hypothesis is H. : B1 = B2 = 0...
Consider a hypothesis test (Ho: u = 10 vs H,:u > 10) on mean of a normal population with variance known at significance level a = 0.05. Calculate P-value for each of the following test statistics and draw conclusion on whether to reject the null hypothesis. (a) zo = 2.05 (b) zo = -1.84 = 0.4 (c) zo
1. It is desired to test the null hypothesis u = 40 against the alternative hypothesis u < 40 on the basis of a random sample from a population with standard deviation 4. If the probability of a Type I error is to be 0.04 and the probability of Type II error is to be 0.09 for u = 38, find the required size of the sample.
The null and alternative hypotheses are: H H :Hd < 0 :Hd > 0 The following sample information shows the number of defective units produced on the day shift and the afternoon shift for a sample of four days last month: Day Day shift Afternoon shift 1 10 8 2 12 9 3 15 12 4 11 15 At the 0.05 significance level, can we conclude there are more defects produced on the Afternoon shift? a. State the decision rule....
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: ơ 8.2 Ha : σ> 8.2 What type of test is being conducted in this problem? OA. ° C. Left-tailed test Two-tailed test B. Right-tailed test
Find the Laplace Transform of f(t)=0 if t< 1; f(t) = t if 1sts 2; f(t)=0 if t> 2.
9 Test the null hypothesis Ho : u = 3.0against the alternative hypothesis HA: U < 3.0 , based on a random sample of 25 observations drawn from a normally distributed population with ū = 2.8 and o = 0.70. a) What is the value of the test statistic? Round your response to at least 3 decimal places. Number b) What is the appropriate p-value? Round your response to at least 3 decimal places. Number c) Is the null hypothesis...
x Previous Step Answer(s): Ho: 0 < 0, H4:0} > o Critical Value = 2.6522 Test Statistic = 4.0553 O Reject Null Hypothesis O Fail to Reject Null Hypothesis
A research team wishes to test the null hypothesis Ho: p = 0 at a = 0.005 against the alternative Hz: p > 0 using Fisher's transformation of the Pearson product moment correlation coefficient as the test statistic. They have asked their consulting statistician for a sample size n such that B = 0.01 when p = 0.25. What is this value? This problem is worth 40 points.
For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two tailed, left tailed, or right tailed The mean local monthly bill for cell phone users in this country was $43.56 in 2001. A hypothesis test is to be performed to determine whether last year's mean local monthly bill for cell phone users has decreased from the 2001 mean of $43.56 Choose the correct null and alternative hypotheses below OA. Ho : μ...
mx 11.4.13-T A Question Help Test the hypothesis that 0 <02 at the a= 0.05 level of significance for the given sample data. Assume that the populations are normally distributed. Use the P-value approach. Population 1 Population 2 48 26 8.8 10.2 State the null and alternative hypotheses for this test 02 Ho: 01 H: 01 62 Use technology to find the P-value for this test. The P-value is 17 (Round to three decimal places as needed.) Enter your answer...