Read the situation carefully and fill in the space provided with appropriate information. A student researcher claims that fewer than 8% of the Junior High School completers will enroll in private Senior High Schools. To test this claim, he collected sufficient samples randomly and found out that 85 out of 380 Junior High School completers are planning to enroll in private Senior High Schools. Claim: Parameter: Symbol for parameter: Ho and Ha complementary pair: Hypotheses in words: Но: На: Hypotheses in symbols: Ho: На: 2-W C

Read the situation carefully and fill in the space provided with appropriate information. A student researcher claims that fewer than 8% of the Junior High School completers will enroll in private Senior High Schools. To test this claim, he collected sufficient samples randomly and found out that 85 out of 380 Junior High School completers are planning to enroll in private Senior High Schools. Claim: Parameter: Symbol for parameter: Ho and Ha complementary pair: Hypotheses in words: Но: На: Hypotheses in symbols: Ho: На: 2-W C

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

According to the Centers of Disease Control, about 21% of American young people between the ages of 12 and 19 are obese. A student claims that the students his local schools are in better'shape than the national average, so'their proportion of obese students is less than 21%. Which are the appropriate null and alternative hypotheses for this study? О о: р - 21%, Н: р < 21% O Ho: p = 21%, H: p 21% O Họ: p = 0, HA: P 0 Оно: р - 21%, Нр» 21%
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.
Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano found that the birth weights of babies in the United States are not symmetric ("Are babies normal?" The American Statistician, Nov 1999, 53:4). However, they also found that when infants born outside of the "typical" 37-43 weeks and infants born to mothers with a history of diabetes are excluded, the birth weights of the remaining infants do follow a Normal model with mean u = 3432 g and standard deviation o = 482 g. The following questions refer to infants born from 37 to 43 weeks whose mothers did not have a history of diabetes. Compute the z-score of an infant who weighs 4769 g. (Round your answer to two decimal places.) Preview Approximately what fraction of infants would you expect to have birth weights between 3100 g and 4040 g? (Express your answer as a decimal, not a percent, and round…
Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano found that the birth weights of babies in the United States are not symmetric ("Are babies normal?" The American Statistician, Nov 1999, 53:4). However, they also found that when infants born outside of the "typical" 37-43 weeks and infants born to mothers with a history of diabetes are excluded, the birth weights of the remaining infants do follow a Normal model with mean p = 3432 g and standard deviation o = 482 g. The following questions refer to infants born from 37 to 43 weeks whose mothers did not have a history of diabetes. %3D Compute the z-score of an infant who weighs 2189 g. (Round your answer to two decimal places.) Approximately what fraction of infants would you expect to have birth weights between 2760 g and 4230 g? (Express your answer as a decimal, not a percent, and round to…
Suppose we are interested in the relationship between individuals’ place of residence (rural versus urban) and their political affiliation (Republican versus Democrat). A random sample of 100 individuals yields the following crosstabulation: Political Affiliation Place of Residence Republican Democrat Rural 21 29 Urban 14 36 a) In words, what is the null hypothesis to be tested? b) Is the relationship between place of residence and political affiliation statistically significant at the .05 level? (Be sure to show the statistics that lead to your decision.) c) Compute and interpret an appropriate measure of association for the relationship between these two variables.
A researcher is interested in examining whether doctors are as accurate at diagnosing certain illnesses via telehealth as they are in person. She randomly assigns a sample of doctors to either see patients via telehealth or in person, and assesses their diagnostic accuracy. What is the independent variable for the scenario A)The doctors B)Type of visit (telehealth vs in person) C)The patients D)Accuracy of diagnosis E)There is no IV for this type of analysis
A private and a public university are located in the same city. For the private university, 1042 alumni were surveyed and 655 said that they attended at least one class reunion. For the public university, 804 out of 1317 sampled alumni claimed they have attended at least one class reunion. Is the difference in the sample proportions statistically significant? (Use α=0.05) a) Reject the null hypothesis which states there is no difference in the proportion of alumni that attended at least one class reunion in favor of the alternate which states there is a difference in the proportions. b) Fail to reject the null hypothesis. There is not enough evidence to conclude that there is a difference in the proportions. c) There is not enough information to make a conclusion.
To determine a target audience for a new email package, a computer company surveyed a sample of potential customers, asking each whether he/she uses email on a regular basis. considered "a regular basis" to be at least three times a week.) The data, as summarized table below, were classified according to two variables: the age of the respondent ("under 54", "55+") and regularity of email use ("on a regular basis" or "not on a regular basis"). Each cell of the table contains three numbers: the first number is the observed cell freque second number is the expected cell frequency (fF) under the assumption that there is no between age and regularity of email use and the third number is the following value. fo-fE) (Observed cell frequency - Expected cell frequency ) fE Expected cell frequency The numbers labeled "Total" are totals for observed frequency. Part 1
According to the Centers of Disease Control, about 20% of American young people between the ages of 12 and 19 are obese. A student claims that the students his local schools are in better'shape than the national average, so'their proportion of obese students is less than 30%. Which are the appropriate null and alternative hypotheses for this study? Оно: р - 20%, Н р 20% Check Answer Cip
A municipality’s local election board claims that 25% of registered voters typically cast ballots in annual school board elections. The local school board believes this percentage of participating voters is, in reality, much lower. What is the population parameter under consideration? What hypotheses should the local school board test in this situation?
The Higher Education Research Institute at UCLA collected data from incoming first-time, full-time freshmen from 290 four-year colleges and universities in the U.S. In 2019, 56% of those surveyed strongly agree that addressing global climate change should be a federal priority. Suppose that you randomly pick 10 first-time, full-time freshmen. You are interested in the number of these 10 that strongly agree that addressing global climate change should be a federal priority. a. Identify the parameter n for the binomial experiment. b. Identify the parameter p for the binomial experiment. c. Find the probability that fewer than 6 of the 10 strongly agree that addressing global climate change should be a federal priority. Round your answer to 4 decimal places.