Here are summary statistics for randomly selected weights of newborn girls: n=36, x=3180.6 g, s=700.5 g. Use a confidence level of 90% to complete parts (a) through (d) below.a. Identify the critical value ta/2 used for finding the margin of error.= 1.69ta/2=(Round to two decimal places as needed.)b. Find the margin of error.E=197.3 g(Round to one decimal place as needed.)c. Find the confidence interval estimate of μ.2983.3 g<< 3377.9 g(Round to one decimal place as needed.)d. Write a brief statement that interprets the confidence interval. Choose the correct answer below.OA. 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.B. One has 90% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.OC. Approximately 90% of sample mean weights of newborn girls will fall between the lower bound and the upper bound.OD. 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.

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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Using the Empirical Rule, complete the following: The weights of healthy kittens is normally distributed with a mean of 24.5 and a standard deviation of 2.5. 1. Find percentage of kittens with weights between 22 and 27. 2. Find percentage of kittens with weights greater than 27. 3. Find the kitten weight corresponding to 50th percentile. 4. Find the kitten weight corresponding to the 16th percentile. 5. Find the kitten weight corresponding to the 84th percentile.
The ages of students in a certain high school had mean 16.5 and standard deviation 1.2. A student whose age is 18 is selected, the z-score of the age 18 is equal to Select one: а. 1.25 O b. -1.5 C. 1.5 d. -1.25
Heights of adult women are normally distributed with a mean of 64 inches with a standard deviation of 2.5 inches. What approximate height is at the 84th percentile? OA. 61.5 inches O B. 66.5 inches O C. 69 inches O D. 64 inches
llustration 11.11. Compute quartile deviation and coefficient of skewness from the following values. Median=18.8 centimetres Q1=14.6 centimetres Q3 = 25.2 centimetres %3D
The next five questions refer to the following scenario: • sample mean T = 10 • sample size n = 100 • population standard deviation O = 4
Is the data accurate (mean = 97% of true value or 2% error) or precise (sd < 0.1)? If not, give ONE possible source of error.
Find the following percentile and percentile ranks for a normal distribution with a mean of ? =120and? =15. The percentile rank for X = 102 The percentile rank for X = 120 The interquartile range
A student who took Stat 2 last semester learns that their overall course score was at the 85th percentile. Assuming that a histogram of all the Stat 2 course scores from last semester follows the normal curve, this means that this student had a score that was how many SDs above the average score? Choose the answer that is closest. Group of answer choices 1.15 1.05 1.10 1.0 PreviousNext
What is the inter-quartile range of pH values. (choose the closest answer)? ph 5.8 5.7 5.6 5.5 5.4 5.3 5.2 5.1 5.0 4.7 4.6 4.5 4.4 4.3 4.2 4.1 A. 0.5 B. 4.9 C. 0.6 D. 4.3 E. 1.6 Boxplot of ph I
The concentration of blood hemoglobin in middle-aged adult females is normally distributed with a mean of 13.5 g/dL and a standard deviation of 0.86 g/dL. Determine the hemoglobin levels corresponding to the: 90th percentile Middle 85% of middle-aged adult female hemoglobin levels
According to National Health Survey heights of men are normally distributed with mean of μ=69.0 inches and standard deviation σ=2.50 . What length of a bed is satisfactory for at least 95% of all men?
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