**Text Transcription for Educational Website**A study of life expectancy showed that a random sample of 6 states had a standard deviation of 0.7 deaths per year. Find the 90% confidence intervals of the variance and standard deviation. Assume the variable is normally distributed. Use the chi-square distribution table to find any chi-square values to three decimal places. Round your final answers to one decimal place.**Graph/Diagram Explanation:**The image features a simple interactive element with input boxes where users enter calculated values to complete the inequalities for the confidence intervals. The two inequalities presented are:1. For variance (\(\sigma^2\)): - \( \text{Lower Limit} < \sigma^2 < \text{Upper Limit} \)2. For standard deviation (\(\sigma\)): - \( \text{Lower Limit} < \sigma < \text{Upper Limit} \)There are also buttons with symbols for multiplication (×) and reset (↻), indicating functional options for user interaction. These likely help in calculating or resetting the input fields.

Answered: A study of life expectancy showed that…

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 population has a mean p= 79 and a standard deviation o = 12. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 36. %3D H=(Simplify your answer.) %3D (Simplify your answer)
Suppose the scores of students on a Statistics course are Normally distributed with a mean of 596 and a standard deviation of 33.What percentage of the students scored between 596 and 662 on the exam? (Give your answer to 3 significant figures.)_________%
Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 115. Assume the variable x is normally distributed. (a) What percent of the SAT verbal scores are less than 650? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 550? Click to view page 1 of the standard normal table. LOADING... Click to view page 2 of the standard normal table. LOADING... Question content area bottom Part 1 (a) Approximately 1.181.18% of the SAT verbal scores are less than 650. (Round to two decimal places as needed.) Part 2 (b) You would expect that approximately 0.880.88 SAT verbal scores would be greater than 550. (Round to the nearest whole number as needed.)
An insurance company is looking over accident statistics. They want to model the population of all drivers for the population parameter of the standard deviation and variance of the age of the driver involved in an automobile accident. They have a sample of 100 accidents from around the country. The age of the driver in each of these accidents is provided below. Use Excel to calculate the sample standard deviation and the sample variance. Round your answers to one decimal place. Do not round until you've calculated your final answer "Age of people in accident"48643346436728189044472440202747683248472248217347302918487364454920205066654187873417203176493089672222455023481746382942254720463119214227226621236675744621461969202048238851284918204522313823284939 Standard deviation: Variance:
A random sample of a population of size n = 36, find the prob that the mean is between 110 and 115. The pop u is 100, and the sd is 15.
Suppose the weight of dogs is normally distributed with a mean of 35 pounds and a standard deviation of 5 pounds. What is the z-score for a dog weighing 34 lbs? Group of answer choices -0.2 0.2 0.98 -0.98 None of the above
Data from a state indicate that scores on the SAT test are normally distributed with a mean of 994 and a standard deviation of 204. Scores on the ACT test are normally distributed with a mean of 20 and a standard deviation of 5.1. It is assumed that the two tests measure the same aptitude, but use different scales.If a student gets an SAT score that is the 77 percentile, find the actual SAT score. Round answer to a whole number. SAT score = What would be the equivalent ACT score for this student? Round answer to 1 decimal place. ACT score = If a student gets an SAT score of 1280, find the equivalent ACT score. Round answer to 1 decimal place. ACT score =
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