udel.instructure.com Quiz: Exam 3 And e following might be helpful in this exam.
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udel.instructure.com Quiz: Exam 3 And e following might be helpful in this exam. rmal table.pdf B able.pdf à ou can submit your cheat sheet to me via Canvas Messages after you have completed the exam. D Question 18 3 pts Small Sample Mean Problem. A study was done to determine the effect of vitamin supplements for the mother on the birth weight of babies. The sample size was 17. All the women in the study regularly visited a doctor during their pregnancy. The data below show the summary statistics and a stem and leaf plot of the birth weight of the 17 babies. Weight is in kilograms (kg). Stem Leaf Mean Median Variance Std Dev cv Count 3.761 3.730 0.531 0.729 19.380 17 47 2*154 3 02 22 39 43 52 68 73 73 409 13 33 37 4"47 68 in kg stem is whole number 2147 is 2.47 The lower and upper bounds of the 99% Confidence Interval for this sample is 375 516 3.386 to 4.136 3.245 to 4277 FS F7 F8 F10Explanation / Answer
solution:- option d. (3.245 , 4.277)
given that mean = 3.761 , standard deviation = 0.729
99% confidence with df = 17 - 1 = 16 is t = 2.921
confidence interval formula
=> x +/- t * s / sqrt(n)
=> 3.761 +/- 2.921 *(0.729/sqrt(17))
=> (3.245 , 4.277)
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