Write a concluding sentence for this information: Context: Proportion of sports fans whose favorite team is different than the local team Hypotheses: Ho:p = 0.4 %3D H1:p < 0.4 a, the level of significance = 0.01; p-value = 0.0034 Sample size = 1021 The structure of concluding sentences is: Level of Significance, the parameter, the context, significance, the alternative hypothesis (p-value, sample size) At the level of significance, the Select an answer v Seloct an answer Seloct an answor Select an answer (pa na

Write a concluding sentence for this information: Context: Proportion of sports fans whose favorite team is different than the local team Hypotheses: Ho:p = 0.4 %3D H1:p < 0.4 a, the level of significance = 0.01; p-value = 0.0034 Sample size = 1021 The structure of concluding sentences is: Level of Significance, the parameter, the context, significance, the alternative hypothesis (p-value, sample size) At the level of significance, the Select an answer v Seloct an answer Seloct an answor Select an answer (pa na

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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Conduct the hypothesis test and provide the test statistic, critical value and P-value, and state the conclusion. A package of 100 candies are distributed with the following color percentages: 12% red, 20% orange, 14% yellow, 15% brown, 24% blue, and 15% green. Use the given sample data to test the claim that the color distribution is as claimed Use a 0.01 significance level. Click the icon to view the color counts for the candy in the package. Click here to view the chi-square distribution table. The test statistic is (Round to two decimal places as needed.) The critical value is (Round to three decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion. Ho. There sufficient evidence to warrant rejection of the claim that the color distribution is as claimed. Reject Do not reject
Jump to level 1 An advertising firm is trying to determine if a lower proportion of interactions from online advertising result in sales compared to the proportion of interactions from television advertising. The firm examines a random sample of each type of interaction. The results of the data collected are shown below. What are the population parameters? Pick Online Successes Observations Proportion Confidence level z-score p-value Television 231 Successes 1000 Observations 0.231 Proportion 95% 2.926 0.00169 206 700 0.294 What is the level of significance? Ex: 0.12 The null hypothesis is Ho: Ponline Pick PTV The alternative hypothesis is Ha: Ponline Pick PTV Should Ho be rejected or does Ho fail to be rejected? Pick What conclusion can be drawn from the data? Pick evidence exists to support the claim that the proportion of sales generated by online advertising is lower than the proportion generated by television advertising.
Recently, students in a marketing research class were interested in the driving behavior of students. Specifically, the marketing students were interested in finding out if exceeding the speed limit was related to gender. The study will use 0.05 as the significance level. They collected the following responses from 100 randomly selected students. Exceeds the Speed Limit | Does Not Exceed the Speed Limit Male 40 | 25 Female 10 | 25 The degrees of freedom for the analysis are _______. Multiple Choice 1 2 4 3
Does buying CDs depend on whether you own a smartphone or not? A survey asks a group of students if they buy CDs or not. It also asks if the students own a smartphone or not. The data are recorded in the contingency table below, and a chi-square Test of Independence at the 5% significance level is performed. SmartphoneNo SmartphoneColumn TotalCDs12.269.81622No CDs17.82414.2832Row Total302454 (a) The null and alternative hypotheses are: H0: The two variables are independent, so owning a smartphone does not affect buying CDs. Ha: The two variables are dependent, so owning a smartphone does affect buying CDs. (b) χ20=11.9 (c) Determine the critical value using the following portion of the χ2-table. df1234χ20.102.7064.6056.2517.779χ20.053.8415.9917.8159.488χ20.0255.0247.3789.34811.143χ20.016.6359.21011.34513.277χ20.0057.87910.59712.83814.860
Repairs: A sample of six records for repairs of a component showed the following costs: 95, 87, 20, 75, 90, 96. Construct a 90% confidence interval for the mean cost of a repair for this type of component. Use tables and technology. Round your answers to at least one decimal place.
4 part question.
how does increasing the sample size influence the size of the t statistic in a hypothesis test. How does it influence the width of a 95% confidence level?
What is the sample size now? What religious category is the mode? What percentage are in this category? What proportion of the sample say they have “No religion”? Using the information on your output, construct and interpret the 95% confidence interval of the proportion who are “Protestant” (write out the formula and show your work).
Median household income in a particular county is $46,250. A researcher is interested to see whether students at the county community college have a median household income lower than the county overalI. She selects 15 students at random and determines that 12 have a household income below the county median, one has an income equal to the county median, and two have a household income above the county median. She wishes to conduct her test using the 0.05 significance level. What is the decision rule? Multiple Choice Reject Ho if the number above the median is <3 or 28. Reject Ho if the number above the median is <3. Reject Ho if the number above the median is <2 or 210. Reject Ho if the number above the median is <2.
a,b,c
Portland State University (PSU) reported that 64% of their students receive financial aid. A PSU administrator feels that their school may have a different proportion compared to all of Oregon schools. A random sample of 409 students in Oregon found that 259 receive financial aid. Test the claim that proportion of students that receive financial aid in Oregon is different than PSU. Use a 1% significance level. Give answer to at least 4 decimal places. a. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) Ho: Select an answer ?v H₁: Select an answer ? ✓ Based on the hypotheses, compute the following: b. Test Statistic = c. p-value = d. Based on the above we choose to Select an answer e. The correct summary would be: Select an answer that the proportion of students that receive financial aid in Oregon is different than the PSU reported value of 64%.
Using the General Social Survey of 2012, determine if there is sufficient evidence to infer that the average American watches more than 24 hours per week, which is 3 hours per day (TVHOURS). Use a 5% significance level for all tests.ONLY USE EXCEL AND PLEASE SHOW ALL STEPS AND EXCEL COMMANDS. ?0:?=3 ?1:?>3 ID AGE SEX DEGREE HRS1 WRKSLF TVHOURS 55088 22 1 3 15 2 1 55089 21 1 1 30 2 55090 42 1 1 60 2 55091 49 2 1 2 4 55092 70 2 3 2 3 55093 50 2 3 2 4 55094 35 2 2 2 3 55095 24 2 0 55096 28 2 0 55097 28 2 3 40 2 55098 55 1 0 2 6 55099 36 2 3 20 2 55100 28 2 1 55101 59 2 1 2 2 55102 52 1 0 32 2 2 55103 35 2 1 53 2 55104 36 1 1 60 2 2 55105 47 2 1 40 2 3 55106 55 1 1 40 2 55107 18 2 1 5 55108 76 2 0 2 55109 39 1 0 12 2 55110 54 1 2 40 2 3 55111 45 2 2 40 2 0 55112 71 1 1 2 2 55113 42 2 3 75 2 55114 22 1 1 40 2 2 55115 50 1 0 8 55116 81 2 3 2 4 55117 44 2 1…