A juice drink filling machine, when in perfect adjustment, fills the bottles with 19 ounces of drink on an average. Any overfilling or underfilling results in the shutdown and readjustment of the machine. Which of the following is the correct set of hypotheses to determine whether or not the machine is properly adjusted

A medical device company has developed a new needle that they claim reduces the incidence of injection-site reactions for a particular medication. An experiment is to be conducted to determine if there is sufficient evidence to make that claim. Which of the following is a correct description and consequence of a Type I error? A. A Type I error would occur if the medical device company incorrectly administers the medication with the new needle, causing it to be impossible to determine whether the number of injection-site reactions have increased or decreased with the new needle.  B. A Type I error would occur if, in reality, the new needle does not reduce the incidence of injection-site reactions, but the significance test detects such a difference. The consequence of such an error would be that the medical device company would produce this new needle, but it would not be beneficial. C. A Type I error would occur if, in reality, the new needle reduces the incidence of injection-site…

You may need to use the appropriate appendix table or technology to answer this question. An agency reports that 11.2% of workers in a particular country belonged to unions. Suppose a sample of 400 workers is collected to determine whether union efforts to organize have increased union membership. (a) Formulate the hypotheses that can be used to determine whether union membership has increased. O Ho: P 0.112 H:pS 0.112 o Ho: P = 0.112 H:p+0.112 Ho:ps 0.112 Hp> 0.112 (b) If the sample results show that 52 of the workers belonged to unions, what is the p-value for your hypothesis test? Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value - (c) At a = 0.05, what is your conclusion? O Do not reject Ho. There is sufficient evidence to conclude that there has been an Increase in union membership. O Do not reject Ho. There is insufficient evidence to conclude that there has been an increase in…

a. State the hypotheses and identify the claim. b. Find the critical value c. Compute the test value. d. Make the decision e. Summarize the results. Undergraduate Enrollment It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage?   Use a=0.05