a. A researcher collects a sample of 31 measurements from a population and wishes to find a 99% confidence interval for thepopulation mean. What value should he use for t*?b. If he instead decides to use a 95% confidence interval, will the interval be wider or be narrower or stay the same? Why?E Click the icon to view the t-table.a. To find a 99% confidence interval for the population mean, he should usefor t*.(Round to three decimal places as needed.)b. If he instead decides to use a 95% confidence interval, will the interval be wider, be narrower, or stay the same? Why?O A. The interval will be wider because t* is bigger, which makes the margin of error bigger.O B. The interval will be narrower because t* is bigger, which makes the margin of error smaller.OC. The interval will be narrower because t* is smaller, which makes the margin of error smaller.O D. The interval will be wider because t* is smaller, which makes the margin of error bigger.t-tablet Distribution Critical ValuesConfidence Level80%90%95%98%99%99.8%Right-Tail Probabilitydft100to50to25t010t,o05t,00113.0786.31412.70631.82163.656318.28921.8862.9204.3036.9659.92522.32831.6382.3533.1824.5415.84110.21441.5332.1322.7763.7474.6047.1731.4762.0152.5713.3654.0325.8946.1.4401.9432.4473.1433.7075.2081.4151.8952.3652.9983.4994.7858.1.3971.8602.3062.8963.3554.5011.3831.8332.2622.8213.2504.297101.3721.8122.2282.7643.1694.144111.3631.7962.2012.7183.1064.025121.3561.7822.1792.6813.0553.930131.3501.7712.1602.6503.0123.852141.3451.7612.1452.6242.9773.787151.3411.7532.1312.6022.9473.733161.3371.7462.1202.5832.9213.686171.3331.7402.1102.5672.8983.646181.3301.7342.1012.5522.8783.611191.3281.7292.0932.5392.8613.579201.3251.7252.0862.5282.8453.552211.3231.7212.0802.5182.8313.527221.3211.7172.0742.5082.8193.505231.3191.7142.0692.5002.8073.485241.3181.7112.0642.4922.7973.467251.3161.7082.0602.4852.7873.450261.3151.7062.0562.4792.7793.435271.3141.7032.0522.4732.7713.421

Given : A researcher collects the sample of 31 measurements from a population and wishes to find a…

a. A researcher collects a sample of 31 measurements from a population and wishes to find a 99% confidence interval for the population mean. What value should he use for t*? b. If he instead decides to use a 95% confidence interval, will the interval be wider or be narrower or stay the same? Why? E Click the icon to view the t-table. a. To find a 99% confidence interval for the population mean, he should use for t*. (Round to three decimal places as needed.) b. If he instead decides to use a 95% confidence interval, will the interval be wider, be narrower, or stay the same? Why? O A. The interval will be wider because t* is bigger, which makes the margin of error bigger. OB. The interval will be narrower because t* is bigger, which makes the margin of error smaller. OC. The interval will be narrower because t* is smaller, which makes the margin of error smaller. O D. The interval will be wider because t* is smaller, which makes the margin of error bigger.

a. A researcher collects a sample of 31 measurements from a population and wishes to find a 99% confidence interval for the population mean. What value should he use for t? b. If he instead decides to use a 95% confidence interval, will the interval be wider or be narrower or stay the same? Why? E Click the icon to view the t-table. a. To find a 99% confidence interval for the population mean, he should use for t. (Round to three decimal places as needed.) b. If he instead decides to use a 95% confidence interval, will the interval be wider, be narrower, or stay the same? Why? O A. The interval will be wider because t* is bigger, which makes the margin of error bigger. OB. The interval will be narrower because t* is bigger, which makes the margin of error smaller. OC. The interval will be narrower because t* is smaller, which makes the margin of error smaller. O D. The interval will be wider because t* is smaller, which makes the margin of error bigger.

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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