Here are summary statistics for randomly selected weights of newborn girls: n = 36, x= 3227.8 g, s = 686.4 g. Use a confidence level of 90% to complete parts (a) through (d) below.a. Identify the critical value tα/2 used for finding the margin of error.ta/2(Round to two decimal places as needed.)b. Find the margin of error.=E= g(Round to one decimal place as needed.)c. Find the confidence interval estimate of μ.g<μ<Παg(Round to one decimal place as needed.)d. Write a brief statement that interprets the confidence interval. Choose the correct answer below.O A. Approximately 90% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.B. One has 90% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls.C. One has 90% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.D. There is a 90% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound.

Sample size n=36Sample mean=3227Standard deviation=686NOTE: according to bartleby guidelines expert…

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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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A statistics class is estimating the mean height of all female students at their college. They collect a random sample of 42 female students and measure their heights. The mean of the sample is 65.3 inches and the sample standard deviation is 5.4 inches. Find the 90% confidence interval for the mean height of all female students in their school? Assume that the distribution of individual female heights at this school is approximately normal. 1. The t value is 1.3025 2. The standard error has a value of -- 3. The margin of error has a value of 4. Find the 90% confidence interval for the mean height of all female students in their school
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