Question: E. To help consumers assess the risks theyat'e taking the Food and Drug Administration (FDA) publishes the amount of nicotine 179mg ii1;.-all commercial brands of

E. To help consumers assess the risks theyat'e taking the Food and Drug Administration (FDA) publishes the amount of nicotine 179mg ii1;.-all commercial brands of cigarettes. A new cigarette has recently been marketed lehe WA tests on this cigarette yielded a mean nicotine content of 26. 9 milligrams and standard deviation of 2. 3 milligrams for a sample of n=83 cigarettes. a. Find a 90% condence mtei'val for 11. b. Find a 95% condence Interval for 11. c. Find a 99% gondense interval for 11. d. What happens trig the width of a condence interval as the value of the condence coefcient is increased while the sample size is held xed

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