Here are summary statistics for randomly selected weights of newborn girls: n = 36, x = 3216.7 g, s = 688.5 g. Use a confidence level of 95% to complete parts (a)through (d) below.a. Identify the critical value t/2 used for finding the margin of error.ta/2 =(Round to two decimal places as needed.)b. Find the margin of error.E =(Round to one decimal place as needed.)c. Find the confidence interval estimate ofH.g<µ<(Round to one decimal place as needed.)gd. Write a brief statement that interprets the confidence interval. Choose the correct answer below.O A. One has 95% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls.B. There is a 95% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound.C. One has 95% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.D. Approximately 95% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.

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Answered: Here are summary statistics for…

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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#12). Please show how you solved the problem. Circle answers. Q2 is already provided.
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Please help with 6 a-b
3) During a study, the weights of test subjects was recorded. The results are displayed in the graph below. Use the graph to determine the value of the following descriptive statistics Histogram of Wt (n=40) 20 15 10 10 100 150 X Values D How many weights were recorded? D) What is the average weight? O Approximate the standard deviation. d) What is the one-standard deviation interval around the mean? How many weights were within this interval? I What percentage of weights were within this interval? What is the two standard deviation interval around the mean? hi How many weights werE within this interval? What percentage of we were within thisterva What is the three standard deviation ntervalarund the mean K) How many weights were within this interv What percentage of weights were withiin thikinterval? 梦 $ hp
The pulse rates of 177 randomly selected adult males vary from a low of 35 bpm to a high of 103 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 95% confidence that the sample mean is within 2 bpm of the population mean. Complete parts (a) through (c) below. a. Find the sample size using the range rule of thumb to estimate 6. n3= (Round up to the nearest whole number as needed.) b. Assume that o = 11.9 bpm, based on the value s = 11.9 bpm from the sample of 177 male pulse rates. n=D (Round up to the nearest whole number as needed.) c. Compare the results from parts (a) and (b). Which result is likely to be better? The result from part (a) is larger than the result from part (b). The result from part (b) is likely to be better because it uses a better estimate of o.
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