A recent publication states that the average closing cost for purchasing a new home is $7383. A real estateagent believes that the average closing cost is more than $7383. She selects 31 new home purchases andfinds that the average closing costs are $7744. The population standard deviation of $466. Help her decideif she is correct by testing her claim at a=0.05.The correct hypotheses would be:© Ho:μ < $7383HA:$7383 (claim)Ο Ho: μ > $7383HA:$7383 (claim)Ο Ho: μ = $7383HA:The p-value is:$7383 (claim)Since the level of significance is 0.05 the critical value is 1.645(round to 3 places)The test statistic is:(round to 3 places)

Given,sample size(n)=31sample mean(x¯)=$7744population standard…

Answered: A recent publication states that the…

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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In the experiment, you repeated measurements 13 times for a resistor. After data processing, you determined that the standard deviation of the measurements is 4.3 N. What is the standard error of the mean in unit of N?
You may need to use the appropriate appendix table or technology to answer this question. Money reports that the average annual cost of the first year of owning and caring for a large dog in 2017 is $1,448. The Irish Red and White Setter Association of America has requested a study to estimate the annual first-year cost for owners of this breed. A sample of 50 will be used. Based on past studies, the population standard deviation is assumed known with o = $245. 1,902 2,042 1,936 1,817 1,504 1,572 1,532 1,907 1,882 2,153 1,945 1,335 2,006 1,516 1,839 1,739 1,456 1,958 1,934 2,094 1,739 1,434 1,667 1,679 1,736 1,670 1,770 2,052 1,379 1,939 1,854 1,913 2,163 1,737 1,888 1,737 2,230 2,131 1,813 2,118 1,978 2,166 1,482 1,700 1,679 2,060 1,683 1,850 2,232 2,294 (a) What is the margin of error for a 95% confidence interval of the mean cost in dollars of the first year of owning and caring for this breed? (Round your answer to nearest cent.) (b) The DATAfile Setters contains data collected…
A section of highway is posted with a 55 mph speed limit. In fact, speeds of cars traveling on this section are normally distributed with mean 58 mph and standard deviation 5 mph. If the state patrol decides to ticket cars in the fastest 10 %, at what speed will they start ticketing ? Round your answer to the first decimal position.
A criminologist rode along with patrol officers for several weeks and recorded the number of minutes police officers spent interviewing witness at a variety of crime scenes. Using data collected on a group of 35 patrol officers, she observes an average interviewing time of 307 minutes. Assume that the population standard deviation a is estimated to be 83 minutes. What is the point estimate for the population mean, p? minutes Submit Question
The ages of the population of a town are Normally distributed with mean 43 and standard deviation 14. The town has a population of 5,000.How many would you expect to be aged between 22 and 57?
The mean score for first exam in your first organic chemistry class (section A) was 60, with a standard deviation of 5. Your score on the exam was 70. A. How many standard deviations above the mean is your score?
Based on data from a college, scores on a certain test are normally distributed with a mean of 1531 and a standard deviation of 324. Complete parts below. c. Find the percentage of scores between 1369 and 1661.
If x the mean of 12 determinations = 9.79, and μ the true value = 9.03, find out whether or not this result is significant provided the standard deviation(s) is 0.18.
Suppose that the heights of adult women in the United States are normally distributed with a mean of 64.5 inches and a standard deviation of 2.5 inches. Amanda is taller than 75% of the population of U.S. women. How tall (in inches) is Amanda? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.
The mean height of females in a certain country is 66 inches with a standard deviation of 4 inches. Find the height that correspond to a z score of 0.8. Round your answer to one decimal place, if needed.
Suppose that human pulse rates for children over 10 and adults are approximately normally distributed with a mean of 78 and standard deviation of 12. Suppose as random.Answer the question following question, rounding your answers to 4 decimal places.
An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 3.4 mm, how many of these components should she consider to be 99% sure of knowing the mean will be within ±0.5±0.5 mm?

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