evidence from your 95% confidence interval, whether there is evidence to confirm the executives wishes. (5 marks) d) Use SPSS to conduct a formal hypothesis test, using a 5% significance level, of whether the population mean drying time of the new adhesive is meeting the executive’s expectations of drying in 5 hours. Apply the five steps that were outlined in the lecture and include the SPSS output from where you obtain the p-value. Remember: ensure the marker can understand any decisions you make. Use the SPSS file with the name Assignment 2 New_Adhesive – T1 2017. (10 marks) Question 4 (10 marks) 6 STAT1060: Business Decision Making Assignment 2 In Question 3, you provided the executives with some information concerning the drying time of the new adhesive. However, before they make a final decision about whether they should go ahead with the new adhesive, it is prudent for them to compare the drying time of the new adhesive with the drying time of the current adhesive. So you have been asked to make such a comparison and provide them with an appropriate report concerning whether the company should continue with producing the current adhesive for the rockets or commence full production of the new adhesive. a) To help the executives of the company to make a final decision, use SPSS to obtain a 95% confidence interval for the difference in the mean drying time of the current adhesive and the new adhesive. i) State the 95% confidence interval (that is, simply give the lower and upper limits). Include the SPSS output from where you obtained this interval. However, do not just provide SPSS output. (2 marks) ii) Interpret the 95% confidence interval (that is, give a statement) in terms of whether there is a difference in the drying time of the two adhesives. Reminder: ensure you accurately word your response. (3 marks) b) Recall that R&D lab vowed that they could reduce the drying time of the new adhesive by 2 hours when compared with the drying time of the current adhesive. Explain, using the supporting evidence from the 95% confidence interval, what you would conclude about such a vow. (5 marks) Question 5 (18 marks) Using the evidence that you generated from the R&D lab, what professional advice would you report to the senior executives that helps them make a decision about the choice of adhesive? Provide two positive impacts this choice will have on the company’s decision to manufacture an adhesive and their commitment to producing a product that ensures that a payload is delivered safely to the international space station. Keep your response to no more than 200 words. This evidence needs to consist of outcomes • About the centre, spread and shape of the data, including outcomes from the graphical and numerical summaries • That stem from a description of the population mean drying time of the new adhesive. • That come about from the comparison of the population mean drying time of the current adhesive and new adhesive. 7 View Less >>

The above graph shows that the “passenger vehicles” is the most registered vehicle in the Newcastle local government area followed by “light commercial vehicles”. The bar of “non freight carrying trucks” is minimal followed by “articulated trucks” and “campervan”. As per the data, while there were total 110985 vehicles registered but there were only 110211 Get solution