Listed below are the numbers of words spoken in a day by each member of eight different randomly selected couples. Male 15,573 25,391 1406 7584 19,264 15,347 13,664 24,947 O Female 25,319 13,558 18,117 17,596 12,608 17,614 16,838 18,296 Use a 0.01 significance level to test the claim that among couples, males speak fewer words in a day than females. In this example, Hg is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the words spoken by the male minus words spoken by the female. What are the null and alternative hypotheses for the hypothesis test?

Listed below are the numbers of words spoken in a day by each member of eight different randomly selected couples. Male 15,573 25,391 1406 7584 19,264 15,347 13,664 24,947 O Female 25,319 13,558 18,117 17,596 12,608 17,614 16,838 18,296 Use a 0.01 significance level to test the claim that among couples, males speak fewer words in a day than females. In this example, Hg is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the words spoken by the male minus words spoken by the female. What are the null and alternative hypotheses for the hypothesis test?

Name: Listed below are the numbers of words spoken in a day by each member
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Listed below are the numbers of words spoken in a day by each member of eight different randomly selected couples.Male15,57325,3911406758419,264 15,347 13,66424,947Female 25,31913,558 18,117 17,596 12,608 17,614 16,83818,296Use a 0.01 significance l

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

Below example 1 in section 3.4 in the textbook, there is a bold text on "A disadvantage of the mean ".If we have a sample of salaries of $20,000, 30,000, $40,000, $50,000, and $3,000,000, which is the best measure for central tendency? a) Meanb) Medianc) ModeType the correct word in the answer blank.
Which of the following are sources of sampling error and which are sources of nonsampling error? The subject cannot be contacted in five calls. The telephone directory is used as a sampling frame. Data are gathered by asking people to go to a website and answer questions online. A typing error is made in recording the data. The subject lies about past illegal drug use. Interviewers choose people on the street to interview.
Every year during home football games the Carroll College fans do push-up contests to see how many they can do. Suppose that a curious stats student in the stands kept track of the number of push-ups completed for several students of both genders. Males 31 31 24 18 30 16 28 13 26 23 Females 16 11 10 1 26 26 6 9 16 32 Consider the hypothesis that males in this contest can do more pushups than females. Use an significance level to test the claim. The test statistic is Construct a 99% confidence interval for the mean of the differences between males and females.
4. Use a 0.05 significance level to test the claim that gender and left-handedness are independent. Male Female Left-handed 83 184 Right-handed 17 16
A researcher wants to investigate whether the education level is related to his or her place of residence. Hundred's people were selected randomly. The results are given as follow. Area * Education Level Crosstabulation Education Level Bachelor's SPM Diploma Degree Total Area Urban Count 22 10 18 50 Expected Count 25.0 8.0 17.0 50.0 Rural Count 28 16 50 Expected Count 25.0 8.0 A 50.0 Total Count 50 16 34 100 Expected Count 50.0 16.0 34.0 100.0 Chi-Square Tests Value df Pearson Chi-Square в 2 Likelihood Ratio 1.850 2 Linear-by-Linear Association .778 1 N of Valid Cases a. O cells (0.0%) have expected count less than 5. The 100 minimum expected count is 8.00. a) State a reason of choosing the Chi-Square Test of Independence for this study. b) Calculate the values of A and B. c) At the 5% significance level, test whether education level is associated to his or her place of residence.
About 4% of the population has a particular genetic mutation. 600 people are randomly selected. Find the mean for the number of people with the genetic mutation in such groups of 600. Submit Question acer
5. A high school teacher wants to see if there is an effect on vocabulary recall between when students take a quiz before lunch and when they take it after lunch. She randomly selected 10 students and assessed them before lunch on Tuesday. On Wednesday she randomly selected 10 students and assessed them after lunch. The following were the percentage results Before lunch 62 60 68 64 72 75 63 60 64 80 After lunch 72 85 72 62 84 76 66 63 65 64 What type of samples were selected – independent or dependent (paired)? Explain. StatCrunch was used to analyze the data, and the output for both types of samples (independent and dependent) is given below. Using the appropriate output, determine if the mean quiz score is higher for those who take the quiz before lunch over those who take the quiz after lunch at a significance level of 0.05. Hypothesis test results: mean before lunch mean after lunch Hypothesis test results: : µi - µ2 : mean of the PAIRED difference µ2 : between Before and After…
assume that 100 births are randomly selected. Use subjective judgment to describe the given number of girls as (a) significantly low, (b) significantly high, or (c) neither significantly low nor significantly high. 53 girls
23. Education Level and Smoking At a large factory, the employees were surveyed and classified according to their level of education and whether they smoked. The data are shown in the table. Educational level Not high High school College graduate school Smoking habit graduate graduate 19 25 Smoke 6. 14 Do not smoke 18 7. If an employee is selected at random, find these prob- abilities. a. The employee smokes, given that he or she gradu- ated from college. b. Given that the employee did not graduate from high school, he or she is a smoker.
Sierra College students enrolled in an online Elementary Statistics course were asked to participate in an anonymous onlne survey. The survey asked the students "Which type of device will you primarily use to access your online course in Canvas?". Of the 152 students who answered this question, 20 responded "a desktop computer", 121 responded "a laptop computer", 6 responded "a smartphone", and 5 responded "a tablet". The Sierra College Mathematics Department believes that less than 5% of students enrolled in an online Elementary Statistics course primarily uses a smartphone to access their online course in Canvas. Use the data collected in the survey to conduct a hypothesis testing procedure to test this belief. What conclusion should be reached according to the results of this hypothesis test?
A manufacturing plant knows that in reality 80% of products made are perfect. An inspector selects four products at random. What is the mean number of perfect products in any sample of 4? It can be assumed that each product is independent of the others.