know that the distribution of parking times can be modeled using an exponential distribution with a mean of 4 minutes‚ find the probability that it will take a randomly selected student more than 10 minutes to park in the library lot. | 0.917915 | | 0.670320 | | 0.329680 | | 0.082085 | 6 out of 6 Correct!! Question 2 of 25 On the average‚ 1.8 customers per minute arrive at any one of the checkout counters of a grocery store. What type of probability distribution can be used to
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of new balls is mean driving distances of sampled current balls is mean driving distances of sampled new balls Use the test statistics and normal distribution table to get p-value. If p-value is smaller than‚ then we reject H0‚ which means the mean driving distances of current balls and new balls are different. 2. From the t distribution table we find that p-value is between 0.05 and 0.1. With p-value >=0.05‚ we cannot reject H0‚ which indicates that there’s no sufficient evidence
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outcome is one that can be explained by normal circumstances. Instructor Explanation: Answer found in section 3.3 The z-test‚ in Statistics for Managers Points Received: 1 of 1 Comments: Question 5. Question : The standard error of the mean can be calculated by dividing μ by the square root of the number of values in the distribution. Student Answer: True False Instructor Explanation: Answer found in section 3.2 The Distribution of Sample
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problems. Some statisticians speak of the standard deviation or variance of the forecast. The forecast here is the distribution of future values. It is a random variable‚ which has a standard error (standard deviation and variance). Other statisticians use the term forecast for the mean of the distribution of future values. The forecast error (the error term in the forecast) is the distribution of future values minus its mean. Using these terms: ! The forecast is a scalar with a non-zero value (unless
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with an increase in body temperature. Data Collection: The data was obtained from the article “What’s Normal? -- Temperature‚ Gender‚ and Heart Rate” (Shoemaker‚ Allen 1996) as found in the Journal of Statistics Education. Its author derived data from an article in the Journal of the American Medical Association entitled "A Critical Appraisal of 98.6 Degrees F‚ the Upper Limit of the Normal Body Temperature‚ and Other Legacies of Carl Reinhold August Wunderlich" (Mackowiak‚ Wasserman‚ and Levine
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problem 6 4.Research Objectives 6 5. Research questions and hypothesis 6 6. Methodology 7 7. Definition of SPSS 8 8. Reliability test 10 9. Descriptive Statistics 11 9.1 Measures of central tendency 12 9.2 Measures of dispersions 13 9.3 Distribution 14 9.4 Percentiles 15 10. FREQUENCIES 16 11. Explore 18 12. Crosstabs 20 13. Compare
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CS229 Lecture notes Andrew Ng Supervised learning Lets start by talking about a few examples of supervised learning problems. Suppose we have a dataset giving the living areas and prices of 47 houses from Portland‚ Oregon: Living area (feet2 ) 2104 1600 2400 1416 3000 . . . Price (1000$s) 400 330 369 232 540 . . . We can plot this data: housing prices 1000 900 800 price (in $1000) 700 600 500 400 300 200 100 0 500 1000 1500 2000 2500 3000
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Stat 3022: Midterm Exam 1 March 5 (Tuesday)‚ 2013 • Name: • ID number: • This exam must be your own work entirely. You can not talk to or share information with anybody. You are not allowed to share materials‚ and calculators. • Cell phone must be turned off. • You have 50 minutes to complete the exam. 1 Problem 1 (21 points total‚ 3 points each) Choose one of the listed choices for each question (no explanation is needed)‚ put your answers in the table on page 4. 1. Suppose you have a sample
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Diversified Global holdings group Strategic analysis business analytics department for CCResorts Central coast Strategic analysis BUsiness analytics Department Executive summary This study was produced on behalf of the Business Analytics Department at DGHG for CCResorts in order to examine market research and determine how the venture is progressing. The company provided a data sample from the past 12 months with 200 entries‚ each with 6 variables. The aim of this report is to evaluate
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BUS 105e: Statistics By Dr Tony Halim GBA: 27 February 2013 Done by: Koh En Song Andrew (Q1211397) Melissa Teo Kah Leng (E1011088) Woon Wei Jie Jared T 04 1. Over the span of 100 days‚ the total revenue for Unicafe North and Unicafe West is $21876.60 and $22042.00 respectively. The average revenue for Unicafe North is $218.77. The average revenue for Unicafe West is $220.42. The highest revenue occurred on the 88th day for both outlets. The lowest revenue occurred on 39th day for
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