Andrew thinks that people living in a rural environment have a healthier lifestyle than other people. He believes the average lifespan in the USA is 77 years. A random sample of 8 obituaries from newspapers from rural towns in Idaho give = 78.6 and s = 1.15. Does this sample provide evidence that people living in rural lIdaho communities live longer than 77 years? (a) State the null and alternative hypotheses: (Type "mu" for the symbol u , e.g. mu >1 for the mean is greater than 1, mu < 1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1) Но: На: (b) Find the standardized test statistic, t = (c) Answer the question: Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years? (Use a 10% level of significance) (Type: Yes or No)

Andrew thinks that people living in a rural environment have a healthier lifestyle than other people. He believes the average lifespan in the USA is 77 years. A random sample of 8 obituaries from newspapers from rural towns in Idaho give = 78.6 and s = 1.15. Does this sample provide evidence that people living in rural lIdaho communities live longer than 77 years? (a) State the null and alternative hypotheses: (Type "mu" for the symbol u , e.g. mu >1 for the mean is greater than 1, mu < 1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1) Но: На: (b) Find the standardized test statistic, t = (c) Answer the question: Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years? (Use a 10% level of significance) (Type: Yes or No)

Name: Andrew thinks that people living in a rural environment have a health
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Andrew thinks that people living in a rural environment have a healthier lifestyle than other people. He believes the average: 78.6 andlifespan in the USA is 77 years. A random sample of 8 obituaries from newspapers from rural towns in Idaho give a

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The Central Intelligence Agency has specialists who analyze the frequecnies of letters of the alphabet in an attempt to decipher intercepted messages. In standard English text, the letter e is used most often at a rate of 12.702%. In an intercepted message sent to Iraq, a page of 1516 characters is found to have the letter e occurring 175 times. Is this unusual?
03 Write Appropriate Hypotheses 3) A researcher interested in investigating the effectiveness of two drugs randomly divides 150 volunteers into five equal groups-placebo, double dose of drug 1, single dose of drug 1, double dose of drug 2, single dose of drug 2-then measures the platelet level of each patient. Write the appropriate hypotheses to test the hypotheses that at least one of the population mean platelet levels for these treatments are different. Be sure to identify your parameter and label your groups appropriately.
3) A Chi-square test can be done to test all of the following EXCEPT which of the following? If the mathematical model accurately predicts the pattern of data values observed. If the mathematical model accurately predicts the total number of values observed. If traits exhibit independence with regards to the probability of seeing their combinations in individuals in a population. If individuals from different populations have the same probability of possessing various traits. If the mathematical model accurately predicts the proportions of data values observed.
According to a food website, the mean consumption of popcorn annually by Americans is 59 quarts. The marketing division of the food website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below. (a) Determine the null and alternative hypotheses that would be used to test the effectiveness of the marketing campaign. Ho H₁ H # 59 (Type integers or decimals. Do not round.) (b) A sample of 832 Americans provides enough evidence to conclude that marketing campaign was effective. Provide a statement that should be put out by the marketing department. P 59 OA. There is sufficient evidence to conclude that the mean consumption of popcorn has risen. OB. There is sufficient evidence to conclude that the mean consumption of popcorn has stayed the same. C. There is not sufficient evidence to conclude that the mean consumption of popcorn has risen. D. There is not sufficient evidence to conclude that the mean consumption of…
Section 5.4 (please help with TI-84 calculator) :) The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n=61, find the probability of a sample mean being less than 20.1 if mean is 20 and standard deviation is 1.18. For a sample of n=61, the probability of a sample mean being less than 20.1 if mean is 20 and standard deviation is 1.18. Round to 4 decimal places
What is the significance of the golden ratio?
11:00 AA www-awn.aleks.com ODD OD Cu. Anagram puzzles involve sets of scrambled letters that must be rearranged to form words. A standard intelligence test employs these puzzles as an aid in assessing verbal ability. Several years ago, an undergraduate noticed that some versions of the intelligence test employed anagram puzzles with lower-case letters, and some versions employed anagram puzzles with upper-case letters. She performed experiments, with college students as participants, to examine the completion times for the two versions. The histogram below is the figure that summarizes her information for the completion times of the 25 students being tested on the lower-case version. Relative frequency 0.40- 0.32 0.30 0.24 0.24 0.20- 0.12 0.10- 0.08 0.00 H 500 700 900 1100 1300 1500 Completion time (in seconds) Based on the histogram, draw the ogive (the cumulative relative frequency polygon) for her data. Cumulative relative frequency 0.8 0.6 0.4 0.2 0.00 0.00 000 0.00 0.00 000 S00…
Section 4.1 Introduction to Probability Score: 4.67/15 4/15 answered Question 10 Giving a test to a group of students, the grades and gender are summarized below valuations A B Male 10 18 6. Female 9. 16 7 If one student was chosen at random, find the probability that the student was male. Probability = (Please enter a reduced fraction.) Submit Question ...jpg pic 16131095275...jpg pic_16131095275..jpg O Zoomday17bsp21.docx pic 1615670389...jpg 17 WX P N 吕口 F3 F4 F5 F2
A demographer wants to know what proportion of women in different countries dye their hair. They take a random sample of women from Korea and another random sample of women from China. In Korea, 47% dyed their hair. In China, 56% dyed their hair. (a) What hypotheses would the demographer use to test if women in China are more likely to dye their hair than women in Korea? H0: pChina=pKorea vs. Ha: pChina ≠ pKoreaH0: pChina - pKorea = 0 vs. Ha: pChina - pKorea > 0 H0: μChina-μKorea = 0 vs. Ha: μChina-μKorea ≠ 0H0: pChina-pKorea = 0.09 vs. Ha: pChina-pKorea ≠ 0.09H0: μChina = 0.56 vs. Ha: μKorea = 0.47 (b) Suppose their test yielded a p-value of 0.079. What does this mean in the context of the test? We are 7.9% confident that the results of our test are correct.If the women of two countries have the same rates of coloring their hair, the probability of getting a difference at least this large is 0.079. If we take another sample, the probability of getting the same p̂China and…