Home prices, in Thousands of dollars, for 30 homesin each california and New York in the year 2018are rummanred in the table belowStatenmean I Std DevCalifornia 30535.4 29.2New YOK 30 365.3 317.8estimate osSE: 10.041Find and interpret the 90%% confidence intervalCIASsume conditions are met for theoretical distribution)indicate 2* or +* critical valuecalculate confidence interval with endpoints toTwo decimal placesⒸ interpret the CJ in context, using non teinrucal languag

StatenMeanStd devCalifornia30535.4269.2New York30365.3317.8Standard error

Answered: Home Prices, in Thousands of dollars,…

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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The quality control manager at a light bulb factory needs to estimate the mean life of a large shipment of light bulbs. The standard deviation is 98 hours. A random sample of 49 light bulbs indicated a sample mean life of 370 hours. Complete parts (a) through (d) below. ..... a. Construct a 95% confidence interval estimate for the population mean life of light bulbs in this shipment. The 95% confidence interval estimate is from a lower limit of hours to an upper limit of hours. (Round to one decimal place as needed.) b. Do you think that the manufacturer has the right to state that the lightbulbs have a mean life of 420 hours? Explain. Based on the sample data, the manufacturer the right to state that the lightbulbs have a mean life of 420 hours. A mean of 420 hours is standard errors the sample mean, so it is that the lightbulbs have a mean life of 420 hours. c. Must you assume that the population light bulb life is normally distributed? Explain. A. Yes, the sample size is not large…
Student Documents... H Take Test: Test 1-. Stock Analysis.pdf -.. ** pasu OLume v Question Completion Status: QUESTION 7 A physician wants to determine the mean serum HDL cholesterol of all 20- to- 29 year old females. How many subjects are needed to estimate the mean serum HDL cholesterol of all 20-to-29 year old females within 2 points with 99% confidence assuming that s = 13.4 based on earlier studies? Show your work for full credit. Suppose that the physician would be content with 95% confidence. How does the decrease in confidence affect the sample size required? T T TT Paragraph Arial 3 (12pt) T T, HTML CSS fx • Mashups Words:0 Path: p QUESTION 8 Save Al An Click Save gnd Submit to save and submit. Click Save All Answers to save all answers.
A researcher collected sample data for 16 women ages 18 to 24. The sample had a mean serum cholesterol level (measured in mg/100 mL) of 192.4, with a standard deviation of 9.6 Assuming that serum cholesterol levels for women ages 18 to 24 are normally distributed, find a 90% confidence interval for the mean serum cholesterol level of all women in this age group. Then find the lower limit and upper limit of the 90% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. Lower level: Upper Level:
Suppose the population standard deviation is standard deviation "sigma"=7, an SRS of n=45 is obtained, and the confidence level is chosen to be 95%. What is the margin of error for estimating a mean "mu" ?
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The variance in drug weighs is critical in the pharmaceutical industry. For specific drug, with weights measured in grams, a sample of 18 units provided a sample variance =0.36. A. Construct a 90% confidence interval estimate of the population variance for the weight of this drug. B. Construct a 90% confidence interval estimate of the population standard deviation. use excel please
The quality control manager at a light bulb factory needs to estimate the mean life of a large shipment of light bulbs. The standard deviation is 69 hours. A random sample of 36 light bulbs indicated a sample mean life of 260 hours. Complete parts (a) through (d) below. Construct a 99% confidence interval estimate for the population mean life of light bulbs in this shipment. The 99% confidence interval estimate is from a lower limit of enter your response here hours to an upper limit of enter your response here hours. (Round to one decimal place as needed.)
You measure 49 textbooks' weights, and find they have a mean weight of 72 ounces. Assume the population standard deviation is 9.4 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places < µ <| ounces Enter an integer or decimal number [more..]l Submit Question • Previous
please answer the question below to 4 decimal places
We surveyed a random sample of 15 domestic violence victims in Columbus, GA. who used the 911. From the sample response time from calling to police arrival was 8.5 minutes on average with a standard deviation of 2.7 minutes. From the estimaiton of the population mean of the arrival time with a 99% confidence interval, what is the upper limit?

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