Finding the null and alternative hypothesis for this problem
2018年3月19日 · The correct hypotheses are: $$\begin{align} H_0: \ \mu=540 \\ H_1: \ \mu <540 \end{align}.$$ Interpretation: The problem states "mean=540 seconds", so is the null hypothesis. To improve mean call time implies to decrease the mean call time by more efficient work of the call center operators.
statistics - Are the null hypothesis and alternative hypothesis ...
2020年6月22日 · We assess such a hypothesis by taking the null hypothesis as the default, and if its p-value is too low we may find the alternative hypothesis more convincing. Or we may not: if our null hypothesis says half the marbles are red and the alternative hypothesis says most are red, data in which few if any marbles are read makes both hypotheses look ...
statistics - What's the correct null and alternative hypothesis ...
2020年11月30日 · Correspondingly, the only conclusions that are possible in a statistical hypothesis test are: Reject the null hypothesis (i.e., accept the alternative) Fail to reject the null hypothesis (i.e., the evidence is inconclusive). It is a common misconception to characterize the second conclusion as being equivalent to "accepting the null hypothesis."
Solved 16-A test is conducted with the null hypothesis H 0
Question: 16-A test is conducted with the null hypothesis H 0: μ = 10 vs. the alternative hypothesis H a: μ < 10 at the α = 0.05 level. The test statistic is z = –1.75. The correct conclusion is: fail to reject the null hypothesis reject the null hypothesis only possible at the α = 0.01 level 17-The null and alternative hypotheses are ...
Solved Activity 1.1 Null Vs Alternative Directions: State - Chegg
Question: Activity 1.1 Null Vs Alternative Directions: State the null and the alternative hypotheses of the following statements. 1. A medical trial is conducted to test whether or not a new medicine reduces uric acid by 50%. Ho: Ha: 2. We want to test whether the general average of students in Math is different from 80%. Ho: Ha: 3.
statistics - What is the notation for the null and alternative ...
2023年9月27日 · An analysis of variance test (ANOVA) tests for a difference in means between two or more groups. In the case where there are more than two groups, the null hypothesis is written as the following: $$ {H_0}: {\mu_1} = {\mu_2} ... = {\mu_k} $$ I have seen the alternative hypothesis for the ANOVA written something like this:
statistics - Identifying null and alternative hypothesis
2021年10月13日 · I have a Statistics book that always states the null hypothesis as $\mu$ equals a value and the alternative hypothesis, depending on the claim, as $\mu$ less, greater or different that value. So I'm now confused because in the solution I found they put the in the null hypothesis the claim rather than in the alternative and then in the ...
Solved Suppose we are testing the null hypothesis vs. the - Chegg
Suppose we are testing the null hypothesis vs. the alternative hypothesis A random sample of 25 observations is drawn from the population. and The sample mean of these observations is = 17.6 with a standard deviation =5. Rejection region corresponding to 5% significance level test is
Null Hypothesis (H₀) vs. Alternative Hypothesis (H₁) - Chegg
For each of the following, state the null hypothesis and the alternative hypothesis:a. The publisher of Celebrity Living claims that the mean sales of personality magazines featuring such celebrities as Angelina Jolieand Kim Kardashian is at least 1.30 million per week.
Solved 4. Which is an acceptable statement of a null and - Chegg
Which is an acceptable statement of a null and alternative hypothesis for testing a hypothesis about a mean? B) Ho: μ 10 vs. Ha: μ < 10 C) Ho: p1-10 vs. H : #10 D) All of the above Show transcribed image text