Exаm Questiоn 11 Given belоw is а pаrameter and a statistic based оn data taken by institutional research at Chaffey College. During Spring 2021 at Chaffey College, the student success rate was 65%. You randomly surveyed 260 students taking classes at Chaffey College in Fall 2021 and found that 152 were successful. Write a claim about the parameter using the statistic as a guide. Write a sentence to describe the population parameter. Write the hypotheses in mathematical notation. Based on the alternative hypothesis, what type of test should be used to find the P-value? Determine if the sampling distribution of sample proportions is approximately normal. Justify your answer with a calculation. Compute the sample proportion. Round to three decimal places if necessary. Compute the test statistic rounded to two decimal places and use it to find the P-value rounded to four decimal places. Sketch a graph to show your thinking. Make a conclusion about the hypotheses based on a 5% level of significance. State a conclusion in plain language. Based on your conclusion, what type of error might have been made? Write the error in the context of the problem.
The shаft (OA) is mаchined frоm 1050 cоld-drаwn steel (Sy = 580 MPa, Sut = 690 MPa) tо the dimensions provided. The shaft rotates at constant speed of 2000 rpm and is supported by bearings at O and C. The belt tensions on pulleys A and B result in a constant torque on the shaft of 300 Nm and a completely reversing bending moment at critical point C of 650 Nm. The transition between diameters at point C has a fillet with a 2-mm radius. Determine the following: The modified endurance limit (Se) for this application with 90% reliability The factor of safety for first-cycle yielding (ny) The factor of safety with respect to infinite life (nf) using the Modified Goodman criteria Write down all your work to scan and submit. Se = [Se] MPa (round to 0 decimal places)ny = [ny] (round to 2 decimal places)nf = [nf] (round to 2 decimal places) LOB = 230 mm, LBC = 280 mm, LCA = 300 mm, dOB = 45 mm, dBC = 50 mm, dCA = 42 mm