Q2. a) Discuss the methods to be usedfor hypothesis testing.b) Approximately 60% of all part-timecollege students in the Peshawar arefemale. What would you expect to see interms of the behavior of a sampleproportion of females if randomsamples of size 100 were taken from thepopulation of all part-time collegestudents?Estimatethestandarddeviation also construct the confidenceinterval using alpha 0.05.

Answered: Q2. a) Discuss the methods to be used…

Q2. a) Discuss the methods to be used for hypothesis testing. b) Approximately 60% of all part-time college students in the Peshawar are female. What would you expect to see in

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

(Fill in the blank) Out of 850 people sampled, 595 said that they supported candidate Johnson. The researchers conclude that they are 95% confident that, in the population, the true percentage of people who support candidate Johnson is between 66% and 74%. Use this information to answer the following questions. a) The percentage of people in the sample who support candidate Johnson, called the sample statistic, is %. Answer: b) The margin of error is Answer: c) The confidence interval can be written as %+ Answer for first blank space: Answer for second blank space:
The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
Question 2 Question 4 Income Income Poverty line is at $12. Based on the table above, what is the Poverty Gap Index (PGI) in 2020? Round to two decimal places and leave the answer with percentage. (e.g. report 35.95 if you believe PGI - 35.95%) Pre- during the Person pandernic pandenic (2019) (2020) Note: Don't round your result until the final step. A 7 3 10 4 15 30 D 4 E 6 2 F 12 11 18 23 Question 5 14 17 Total 86 90 Poverty line is at $12. Based on the table above, what is the percentage change in Poverty line is at $12. Based on the above table, with reference to the pre- FGT2 from 2019 to 2020? Round to two decimal places and leave your answer with pandemic(2019) and the post-pandemic(2020) income levels, The Headcount Index percentage. (e.g. If you believe FGT2 increase 99.99% from 2019 to 2020, enter "99.99" in the blank) does NOT change from 2019 to 2020. Note: 1. Don't round your resuilt until the finat step. O True 2. E.g: percentage change of GDP from 2019 to 2020 equals the…
According to a recent census, 14.3% of all housing units in a certain country are vacant. A county supervisor wonders if her county is different from this. She randomly selects 893 housing units in her county and finds that 162 of the housing units are vacant. Complete parts a through d below. a) State the hypotheses. Let the proportion of housing units in the county that are vacant be denoted by p. Choose the correct answer below. OA. Ho: p<0.143 HA: P = 0.143 O C. Ho: p=0.143 HA: P<0.143 OB. Ho: p=0.143 HA: P = 0.143 O D. Ho: p20.143 HA: P<0.143 b) Name the model and check appropriate conditions for a hypothesis test. What kind of test is this? Choose the correct answer below. Two-proportion t-test Difference in proportions test Proportional t-test O One-proportion z-test Check the appropriate conditions for a hypothesis test. Select the correct choice below and fill in the answer boxes within your choice. (Round to one decimal place as needed.) successes and nqo = than 10. OA. The…
Section 11.2 Question #4 The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case, it was known if the subjected lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and lies? View the table Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) Polygraph test indicated that the subject lied. 9 48 Polygraph test indicated that the subject did not lie. 30 12 Determine the test statistic. χ2= _________ (Round to three decimal places as needed.) Determine the P-value of the test statistic. P-value= ___________ (Round to four decimal places as needed.)
What statistical test would a researcher use to test the following research hypothesis: Individuals who report less favorable attitudes toward the police are more likely to be sentenced to higher security prisons. Attitudes measured as 1 = very favorable, 2 = somewhat favorable, 3 = somewhat not favorable, and 4 = not at all favorable. Sentences measured as 1 = minimum, 2 = medium, and 3 = maximum.
26
16)
PROBLEM : The given table shows the scores of the representative students from the three sections in a Science exam. (attached picture) Is there a difference in the mean Science exam scores of the students from the three sections? Use a .05 level of significance. Show all necessary computations and solutions. Follow the hypothesis testing procedure.
Which of the following is a research hypothesis? A. Liberals and conservatives have the same voting rates. B. The rates of that senior citizens receive moving violations are not different from rates of moving violations seen in teenagers. C. White and African Americans watch the same amount of TV. D. Men and women have different levels of income.
A high school track coach wanted to test whether giving the students an energy drink could affect performance during the 100 meter race. The coach split the 26 boys into two equal sized groups, where Group 1 was given the energy drink and Group 2 was not. The 100 meter race times were recorded during practice and shown in the table below. What inference can be made about the results? Group 1 Group 2 12.2 13 12.5 12.3 13.3 12.8 12.9 13 13 13.8 12.1 13 13 13 13 13 12.1 13 13 13 12.1 13 12.8 13 13 12.6 Mean: 12.7 Mean: 13 Since the simulation shows ( many cases or free cases )? where a mean difference of ( solve for this answer ) or less occurred when the groups were re-randomized, it can be inferred that the mean difference observed in the study was ( very possibly or very unlikely ) ?due to the random assignment of participants into groups, so the results of the study are (…
You create three versions of a survey, each with different ways of phrasing the questions (positive, negative, or neutral). You randomly assign participants to one of the three surveys, each of which has 20 items for which participants rate their agreement. After collecting the surveys, you calculate an average agreement score for each participant. If testing hypotheses about question phrasing on agreement, it would be most appropriate to calculate a. 1) O One-way (independent) ANOVA ›2)Repeated measures ANOVA 3) factorial ANOVA Factorial ANOVA