If tcalc = -2.78, tcrit = 1.96, H0: Mu > Mu0, and Xbar < Mu0, what will your conclusion be regarding the null hypothesis?
Solution :
Given that,
tcalc = -2.78
tcrit = 1.96
tcalc > tcrit as |2.78| > 1.96
Reject the null hypothesis .
If tcalc = -2.78, tcrit = 1.96, H0: Mu > Mu0, and Xbar < Mu0, what...
A sample of size n = 19 has variance s2 = 1.96. At α2 = .05 in a right-tailed test, does this sample contradict the hypothesis that σ2 = 1.21? (a) Choose the correct null and alternative hypotheses. H0: σ2 ≥ 1.21 vs. H1: σ2 < 1.21 H0: σ2 = 1.21 vs. H1: σ2 ≠ 1.21 H0: σ2 ≤ 1.21 vs. H1: σ2 > 1.21. (b) Calculate the decision rule. (Round your answer to 2 decimal places.) χ2 > (c)...
The following hypotheses are given. H0 : π ≤ 0.83 H1 : π > 0.83 A sample of 100 observations revealed that p = 0.87. At the 0.10 significance level, can the null hypothesis be rejected? State the decision rule. (Round your answer to 2 decimal places.) Compute the value of the test statistic. (Round your answer to 2 decimal places.) What is your decision regarding the null hypothesis? Do not reject H0. Reject H0. question 2: The number of...
I. Make 21 random sample from a population with normal distribution (100,1) H0 (mu=95) Ha (mu>95) II. Find the rejection region (alpha = 0.01) III. Compute the test statistic. IV. Tell me the appropriate conclusion for the test? V. Tell me what condition is needed for the test results to be valid? Is this condition satisfied? (alpha = 0.05)
The following hypotheses are given. H0 : π ≤ 0.75 H1 : π > 0.75 A sample of 130 observations revealed that p = 0.89. At the 0.10 significance level, can the null hypothesis be rejected? a. State the decision rule. (Round your answer to 2 decimal places.) Reject H0 if z > b. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic c. What is your decision regarding the...
QUESTION 3 Your annoying grandmother insists that name brand medication works better than generic (store brand) medication. You insist that she is senile, belongs in assisted living, and any differences she perceives in the two types of medications is just in her own mind rather than real. To see who is right, you decide to put her claim to the test. The next 14 times she has a headache, you randomly pick either the generic or name brand medication and...
When z-test statistics is +5, at 2% level of significance for H0: µ = 75, what is the decision regarding the null hypothesis
7. H0:
H1:
Final Conclusion regarding the claim:
8. The following data represent the number of cars passing
through the toll booth during a certain time period over a number
of days. Construct a data plot for the given data.
Formulate the indicated hypotheses and conclusion. Be sure to address the original claim. Extra work does not need to be shown for this question. Points: 5 7) A researcher claims that 62% of voters favor gun control. Assuming that a...
Explain what the below mathematical information means in written paragraph or two : NULL HYPOTHESIS H0: ALTERNATIVE HYPOTHESIS Ha: Not all means are equal. alpha=0.05 Test statistic F=16.821 P value=0.000 Since P value SMALLER than the level of significance therefore SIGNIFICANT. Decision: DO NOT REJECT H0. Conclusion: There is sufficient evidence to conclude that the marks obtained by the Brothers are different.
7. When z-test statistics is +5, at 2% level of significance for H0: µ = 75, what is the decision regarding the null hypothesis
Given the following hypothesis: H0 : μ ≤ 12 H1 : μ > 12 For a random sample of 10 observations, the sample mean was 14 and the sample standard deviation 4.80. Using the .05 significance level: (a) State the decision rule. (Round your answer to 3 decimal places.) (Click to select)Cannot rejectReject H0 if t > (b) Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic (c)...