A hospital claims that the mean wait time for emergency room patients is more than 38 minutes. Identify the null hypothesis, H0, and the alternative hypothesis, Ha, in terms of the parameter μ. Select the correct answer below: H0: μ=38; Ha: μ≥38 H0: μ=38; Ha: μ≤38 H0: μ=38; Ha: μ>38 H0: μ=38; Ha: μ<38
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Select the correct answer below:
- H0: μ=38; Ha: μ≥38
- H0: μ=38; Ha: μ≤38
- H0: μ=38; Ha: μ>38
- H0: μ=38; Ha: μ<38
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- Suppose U.S. consumers 21 years and older consumed 26.3 gallons of beer and cider per person during 2017. A distributor in Milwaukee believes that beer and cider consumption are higher in that city. A sample of consumers 21 years and older in Milwaukee will be taken, and the sample mean 2017 beer and cider consumption will be used to test the following null and alternative hypotheses: Ho: Hs 26.3 Ha: u > 26.3 (a) Assume the sample data led to rejection of the null hypothesis. What would be your conclusion about consumption of beer and cider in Milwaukee? Conclude that the population mean annual consumption of beer and cider in Milwaukee is less than or equal to 26.3 gallons and hence lower than throughout the United States. Conclude that the population mean annual consumption of beer and cider in Milwaukee is greater than 26.3 gallons and hence lower than throughout the United States. Conclude that the population mean annual consumption of beer and cider in Milwaukee is less than or…A commonly cited study says that 49% of students study less than 5 hours per week. A researcher does not think this is accurate and wants to show that the percentage of students that study less than 5 hours per week is not equal to 49%. Identify the null hypothesis, H0, and the alternative hypothesis, Ha, in terms of the parameter p.A Chi square test has been conducted to assess the relationship between marital status and church attendance. The obtained Chi square is 7.45 and the critical Chi square is 9.488. What may be concluded? Group of answer choices A.reject the null hypothesis, church attendance and marital status are independent B.fail to reject the null hypothesis, church attendance and marital status are independent C.Reject the null hypothesis, church attendance and marital status are dependent D.fail to reject the null hypothesis, church attendance and marital status are dependent
- At one school, the average amount of time that tenth-graders spend watching television each week is 21.6 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a significance test to determine whether the average amount of time spent watching television per week has decreased. The hypotheses are: H0: μ = 21.6 hours HA: μ < 21.6 hoursExplain the meaning of a correct decision. Choose the best answer below: A. Concluding that μ = 21.6 hours when in fact μ < 21.6 hours B. Concluding that μ < 21.6 hours when in fact μ = 21.6 hours C. Concluding that μ > 21.6 hours when in fact μ < 21.6 hours D. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ = 21.6 hours OR concluding that μ < 21.6 hours when in fact μ < 21.6 hours E. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ <…The mean age of a bus driver in Chicago is 47.4 years. If a hypothesis test is performed to test the validity of this statement, how should you interpret a decision that rejects the null hypothesis?As part of an investigation into motorway accidents in Greater Manchester, it was hypothesised that weather conditions were an important factor. Research revealed that in wet weather the M60, M61 and M62 experienced 32, 272 and 96 accidents. In dry weather, the figures were 32, 281 and 30. Formulate null and alternative hypothesis for this test
- The mean length u of male geckos is 9.5 inches. A researcher studying a population of geckos in a certain region will conduct a hypothesis test to investigate whether there is evidence that the mean length is greater than 9.5 inches. A random sample of geckos was selected, and the sample mean i was calculated as 10 inches. Which of the following is the correct set of hypotheses? Họ : = 10 Ha : 5 + 10 A Ho : = 10 Ha : 5 9.5 Họ : 4 = 9.5 На : д<9.5 D Họ : µ = 9.5 Ha : 4 + 9.5 EState the null and alternative hypotheses. The mean cost of tuition at a community college (1) is less than the mean cost of tuition at a university (2). Ho: H₁ H2 H₁: H₁> H₂ Ho: M₁Because of high production-changeover time and costs, a director of manufacturing must convince management that a proposed manufacturing method reduces costs before the new method can be implemented. The current production method operates with a mean cost of $220 per hour. A research study will measure the cost of the new method over a sample production period. Write out the null and alternative hypotheses most appropriate for this study. Н.: НA research report includes the statement, “ z = 1.18, p > .05.” What happened in the hypothesis test? The obtained sample mean was very likely if the null hypothesis is true, so H0 was rejected. The obtained sample mean was very unlikely if the null hypothesis is true, and the test failed to reject H0. The obtained sample mean was very unlikely if the null hypothesis is true, so H0 was rejected. The obtained sample mean was very likely if the null hypothesis is true, and the test failed to reject H0.If a hypothesis test produces a z-score in the critical region, which decision should be made? a. fail to reject the alternative hypothesis b. fail to reject the null hypothesis c. reject the alternative hypothesis d. reject the null hypothesisPose a null and alternate hypothesis for a two sample t-test using variables: Male and Female, Asthma, number of injuries, or flu shot. Can any of the variables also be used to do a Chi square test or a NOVA test?SEE MORE QUESTIONS