Question 5You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe thepopulation standard deviation is approximately o =estimate is within 1 of the true population mean. How large of a sample size is required?70.6. You would like to be 98% confident that yourn =Do not round mid-calculation. However, you are encouraged to use a critical value accurate to three decimalplaces – this is important for the system to be able to give hints for incorrect answers.

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Answered: Question 5 く > You want to obtain a…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter4: Eigenvalues And Eigenvectors

Section4.6: Applications And The Perron-frobenius Theorem

Problem 25EQ

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Question 1 a) A wedding photographer has made $500 on average in the 5 years it has been operational.When 12 months were analyzed, it was found that he made $620 per month. i. Does the value $500 refer to the parameter or to the statistic? ii. Is the value $650 a parameter or a statistic? iii. State two advantages of using a sample statistic rather than a parameter. b) For each the following variables, state which is quantitative and which is qualitative. If itis continuous, state whether it is discrete or continuous.i. The amount of flour added to bake a pie ii. The temperature of a glass of milk iii. The addresses of all patients at a dental office c) Choose the level of measurement described belowi. The number on the t-shirt of a player on a football team (ordinal, interval) ii. The distance Madison runs every morning (interval, ratio) iii. The Magazine that sells the most copies in a month (nominal, ordinal)
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The forecast for year 6 using a weighted 2-year moving average with weights of 0.350.35 and 0.650.65 (the weight of 0.650.65 is for the most recent period) is what?
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QUESTION 4 Agree or disagree with the following statements about using the repeated measures design. 1. The variability of the data tends to increase when using a repeated measures design_________ 2. The cost of study will tend to decrease when using a repeated measures design ___________ 3. The number of participants will tend to increase when using a repeated measures design ____________ 4. The time it takes to run a study will tend to decrease, when running a repeated measures design _____________ QUESTION 5 What does the name repeated measures refer to? a two samples gets data taken from two times b one sample is used three times c one sample gets data taken from two times d one sample gets data taken from one time QUESTION 6 Which of the following hypotheses should NOT be tested using a within design? Think about what is actually possible and would allow us to collect accurate data. a exercise reduces blood…
Section 9.2 Question #8 Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? Recent 77 91 90 78 57 100 61 87 69 89 83 83 55 81 73 101 61 Past 90 89 93 94 64 85 85 92 88 91 89 91 Let μ1 be the recent times and let μ2 be the past times. What are the null and alternative hypotheses? A. H0: μ1 = μ2 H1: μ1 ≠ μ2 B. H0: μ1 < μ2 H1: μ1 = μ2 C. H0: μ1 = μ2 H1: μ1 > μ2 D. H0: μ1 ≠ μ2…
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section 5.4 Step 1 of 2 : Calculate the population mean for the shelf-life. Round your answer to two decimal places, if necessary. Step 2 of 2 : Calculate the population standard deviation for the shelf-life. Round your answer to two decimal places, if necessary.

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