Seminar2_Tutor_Copy_EeHW.pdf - Seminar 2 Unit 2 Confidence...

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8/26/2017 1 Seminar 2 - Unit 2 - Confidence Interval - Hypothesis Testing - Analysis of Variance Dr Ee Huei Wuan Menu today 1-2 Time Activity 7.00 – 7.15pm One on one clarification 7.15 – 7.30pm What have T03 students been doing? Moving forward 7.30 – 8.30pm Activities 2.1 & 2.2 8.30 – 8.45pm Break and networking 8.45 – 9.45pm Activities 2.3 & 2.4 9.45 – 10.00pm Summary and heads-up for Seminar 3
8/26/2017 2 T03: 11 to 24 August 2017 Web address: slido.com Code: unit2 1-3 T03: 11 to 24 August 2017 1. I have installed the Excel Analysis ToolPak. 2. I have studied Unit 2 of Study Guide as follows: 3. The amount of time I spent on the chunk lectures: 4. The number of Excel Self-Practices 2 that I have attempted: 5. The number of Seminar 2 activities that I have attempted: 6. I access Canvas: 1-4
8/26/2017 3 T03 behaviour for Unit 1 1-5 Yes 77% No 23% Install Analysis ToolPak Yes No None 14% About 25% 28% About 50% 25% About 75% 28% All 5% Amount Unit 1 studied None About 25% About 50% About 75% All 27 4 1 1 0 Time on chunk Lectures None Less than an hour About 1 to 2 hours About 2 to 3 hours More than 3 hours None 36% 1 to 5 practices 25% 6 to 10 practices 39% 11 to 15 practices 0% 16 to 20 practices 0% Excel Self-practices None 1 to 5 practices 6 to 10 practices 11 to 15 practices 16 to 20 practices 28 1 4 Seminar 1 activities None 1 to 3 activities 4 to 6 activities Seldom 5% Once a week 27% Once a day 46% Many times a day 22% Canvas access Seldom Once a week Once a day Many times a day 1-6
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8/26/2017 5 1-9 16 November 2017, Thursday 10am What is Statistics? Statistics The science of collecting, organising, presenting, analysing, and interpreting data to assist in making more effective decisions. o Descriptive Statistics Methods of organising, summarising and presenting data in an informative way. o Inferential Statistics The methods used to estimate a property of a population on the basis of a sample. 1-10
8/26/2017 Activity 2.1 – Confidence Interval Rozex Hotel has been sending its staff for customer service training for the last two years. Recently, Rozex has conducted a round of mystery guest survey to monitor the progress. The survey scores is enclosed (see Activity2.1_Data.xls). The industry average score for the customer satisfaction is 80 (out of a scale of 100). Activity 2.1 In groups of 3 or 4 1. Use Excel to construct the 90% confidence interval for the mean customer service scores. 2. Using answer in part 1, do you think there is sufficient evidence to conclude that Rozex Hotel customer service has met the industry standard? You may refer to “Excel Self Practice Prior Seminar 2” Practice 2.1. 6
8/26/2017 7 9-13 Activity 2.1 Debrief Confidence Interval Estimates for µ Use Z -distribution If the population standard deviation is known .

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