MAT 510 University Business Statistics Discussion

Week 7 DiscussionExplain why an increase in sample size will reduce the probability of a Type II error but will not impact the probability of a Type I error. Support your reasoning using a scholarly source.Week 8 AssignmentOverviewThe research department of an appliance manufacturing firm has developed a new bimetallic thermal sensor for its toaster. The new bimetallic thermal sensor can sense the temperature of the bread and move the lever arm to activate the switch. The research department claims that the new bimetallic thermal sensor will reduce appliance returns under the one-year full warranty by 2%-6%. To determine if the claim can be supported, the testing department selects a group of the toasters manufactured with the new bimetallic thermal sensor and a group with the old thermal sensor and subjects them to a normal year’s worth of wear. Out of 250 toasters tested with the new bimetallic thermal sensor, 8 would have been returned. Seventeen would have been returned out of the 250 toasters with the old thermal sensor. As the manager of the appliance manufacturing process, use a statistical procedure to verify or refute the research department’s claim.InstructionsCreate 8-10 slides, including a cover and a sources list, for a presentation to the director of the manufacturing plant in which you:This course requires the use of Writing Standards (SWS). The library is your home for SWS assistance, including citations and formatting. Please refer to the Library site for all support. Check with your professor for any additional instructions.The specific course learning outcome associated with this assignment is:Week 9 The outcome for Chapter 14.3 states that “Regression analysis is a statistical tool that is used for two main purposes: description and prediction.”___________________________________________________________________________Week 9 Activity Terry Downes owns a commercial cleaning company. He has conducted a survey of customers to determine how satisfied they are with the work performed. He devised a 100-point rating scale – with 0 being poor and 100 being excellent service, selected a random sample of 14 customers, and asked them to rate the service. He also recorded the number of worker hours spent in the customer’s facility. These are in the file named Downes Download Downes.Use Excel to complete the following:Use Word to complete the following: