Using this data, how would you find a 95% prediction interval for the number of programs in year 11? Year12345678910Number of Programs4304805657908859601200138015301591

The formula of the prediction interval is,With the degrees of freedom is,

Answered: Using this data, how would you find a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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ABC company, a textile manufacturing company, has recorded defects in their production for a month as shown in the table below. Should the company decide to solve the 3 types of defects belonging to the top 3 of defects, how much percentage of the problem are they expecting to be solved? DEFECT FREQ MISPRINTING 55 SHADE VARIATION 38 UNEVEN DYEING 10 DROP STITCHING 5 DIRT/STAINS 2
Suppose that I want to estimate the percentage of students who love statistics in California. How many students would I need to survey in order to have a margin of error that is less than 3%, assuming that I want to be 90% confident in the final results.
Please answer letter b
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.A sample of 58 stocks traded on the NYSE that day showed that 21 went up.You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of α=0.02.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to…
A crew is building a series of identical day spas around the United States for a lifestyle company. They build the first one in 160 days from groundbreaking to ribbon-cutting. If the crew's learning curve rate is 97%, it will take nearest 1/10th, to construct the fifth day spa. days, to the
In a study conducted by a human resource management organization, 492 human resource professionals were surveyed. Of those surveyed, 83% said that their companies conduct criminal background checks on all job applicants. Complete parts (a) through (d). Question content area bottom Part 1a. What is the exact value that is 83% of 492 survey subjects?
Suppose Laura, a facilities manager at a health and wellness company, wants to estimate the difference in the average amount of time that men and women spend at the company's fitness centers each week. Laura randomly selects 15 adult male fitness center members from the membership database and then selects 15 adult female members from the database. Laura gathers data from the past month containing logged time at the fitness center for these members. She plans to use the data to estimate the difference in the time men and women spend per week at the fitness center. The sample statistics are summarized in the table. Population Populationdescription Population mean(unknown) Samplesize Sample mean(min) Sample standarddeviation (min) 11 male μ1 n=15 x¯1=137.7 s=51.7 22 female μ2 n=15 x¯2=114.6 s=34.2 df=24.283 The population standard deviations are unknown and unlikely to be equal, based on the sample data. Laura plans to use the two-sample ?-t-procedures to estimate the…
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In 2016 the Better Business Bureau settled 84% of complaints they received in the United States. Suppose you have been hired by the Better Business Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better Business Bureau is able to settle. Assume the population proportion of complaints settled for new car dealers is 0.84, the same as the overall proportion of complaints settled in 2016. Use the z-table. a. Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of p. E(p) (to 2 decimals) (to 4 decimals) b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will be within 0.04 of the population proportion (to 4 decimals)? probability : = c. Suppose you select a sample of 460 complaints involving new car dealers. Show the sampling distribution of p. E(F) (to 2…
What is the approximate forecast for November using a four-month moving average? Oct - 700Sept - 600Aug - 880July - 670June - 430
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day. A sample of 71 stocks traded on the NYSE that day showed that 24 went up. You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of a = 0.01. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) a greater than a This test statistic leads to a decision to... reject the null accept the null fail to…
suppose the five number summary for the normal annual precipitation (in inches) for 12 different U.S. cities is the following: 5.1, 11.5, 16, 22.1, 51.7 A. The IQR is 10.6 This means that the difference between the largest an smallest amount of rainfall is 10.6 inches B. The IQR is 10.6 This means that the range of the middle 50% of rainfall values is 10.6 inches. C. The IQR is 46.6 This means that the difference between the largest and smallest amount of rainfall is 46.6 D. The IQR is 46.6 This means that the range of the middle 50% of rainfall is 46.6 inches.

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