I. Do the following: a. State the null and alternative hypotheses, identify which represents the claim, b. Determine when a type I or type Il error occurs for a hypothesis test of the claim. c. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Explain your reasoning. d. Explain how you should interpret a decision that rejects the null hypothesis. e. Explain how you should interpret a decision that fails to reject the null hypothesis. Problem An agricultural cooperative guarantees that the mean shelf life of a certain type of dried fruit is at least 400 days.

Can i please get the correct response to this question?

Plzz choose correct option.

How do you know when to reject the hypothesis and when to fail to reject it, and whether there is -or is not -sufficient evidence to support a claim?

It is believed that positive, self-affirming statements can lead to greater academic success on high- stakes assessments. In a recent study, 120 advanced algebra students were randomly assigned to two groups. One group was instructed how to write and recite daily positive self-affirmations while the other group did not do any affirmations. After one semester, all 120 students took the same algebra examination. Which of the following would be appropriate hypotheses for this study? (A) Ho: M₁ = ₂ and Ha: ₁ ₂, where ₁ = mean score for those who used affirmations and U₂ = mean score for those who don't use affirmations. (D) Ho: H1 H2 and Ha: ₁ = µ2, where μ, mean score for those who used affirmations and μ₂ = mean score for those who don't use affirmations. (E) Ho: H₁ H₂ and Ha: 1 = P2, where μ, mean score for those who used affirmations and U₂ = mean score for those who don't use affirmations.

D. Whymight it be worse to make a Type 1 error in this scenario? E. Suppose that we fail to reject the null hypothesis. Wrote a conclusion statement in the context of the problem. Assume no errors were made.

A box model is used to conduct a hypothesis test for the following scenario: A marketing firm randomly selects 500 households in a town asking about their annual income. They want to test whether the percentage of households in town that have annual income above $100,000 is 50%. The SD of the ticket values in the box assuming the null hypothesis is true is best described as... a. Random and unknown; it must be estimated b. Fixed and unknown; it must be estimated c. Random and known d. Fixed and known

Food inspectors inspect samples of food products to see if they are safe. This can be thought of as a hypothesis test with the following hypotheses. Họ: the food is safe H3: the food is not safe The following is an example of what type of error? The sample suggests that the food is safe, but it actually is not safe. type I O type II O not an error

The academic planner of a university thinks that at least 39% of the entire student body attends summer school. Which of the following is the correct set of hypotheses to test his belief? Ho: p 2 0.39 H3: p 0.39 Ho: p > 0.39 Ha: ps 0.39

2005 9.135 Kicking the cigarette habit. Can taking an antidepressant drug help cigarette smokers kick their habit? The New England Journal of Medicine (Oct. 23, 1997) published a study in which 615 smokers (all of whom wanted to give up smoking) were randomly assigned to receive either Zyban (an antidepressant) or a placebo (a dummy pill) for six weeks. Of the 309 patients who received Zyban, 71 were not smoking one year later. Of the 306 patients who received a placebo, 37 were not smoking one year later. Conduct a test of hypothesis (at a = posed in the first sentence of this exercise. 9.138 .05) to answer the research question