Show your complete solutionII. Use an appropriate statistical tool to test the hypothesis. Use the stepwise method of hypothesistesting.3. A researcher observed that students preferred several online class platforms. For this reason, heperforms a survey to know whether or not gender is associated with online class platformspreference and he was able to gathered the following dataZoomGoogle MeetMS TeamsTotalMale1109540245Female10510050255Total21519590500

Answered: Image /qna-images/answer/f2be7a92-7880-4f0f-a5dd-8dfe2c685999.jpg

Answered: II. Use an appropriate statistical tool…

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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Provide an appropriate response. 1) A local supermarket claims that the waiting time for its customers to be served is the lowest in the area. A competitor's supermarket checks the waiting times at both supermarkets. The sample statistics are listed below. Test the local supermarket's hypothesis. Use a = 0.05. Local Supermarket n1 = 15 Competitor Supermarket n2 = 16 x2 = 5.6 minutes s2 = 1.0 minutes x1 = 5.3 minutes s1 = 1.1 minutes
In the Texas senate races, a candidate must clear 50% to avoid a runoff election. In a recent poll of 1040 voters in Texas, 51% of voters preferred candidate. We will a hypothesis test to see if we can say at the 5% significance level that more than 50% of voters in Texas prefer candidate based on this poll. State the null and alternative hypothesis. Find the test-statistic. Find the P-value. Make a conclusion. Interpret your answer.
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%.
To help with its next advertising campaign, a large sporting goods company would like to know which activity fans prefer, watching professional sports games (P) or watching college sports games (C). The accompanying data show the preferences of a random sample of sports fans Using a 0.10, perform a hypothesis test to determine if fans prefer one type of sports over the other. Click the icon to view the data table Let Fp be the proportion of sports fans who prefer watching professional sports games and Fe be the proportion of sports fans who prefer watching college sports games Identify the hypotheses. OB A. HjFpFc H₂ Fp #Fc OC H₂ Fp #Fc H₂ Fp Fc Determine the test statistie The test statistic is (Type an integer or a decimal rounded to two decimal places as needed) example Get more help. MFps Fe H₂ F₂Fc OD H₂ Fp2 Fc Data table Fan 1 2 Preference P P 3 4 6 6 7 8 9 10 No preference 11 P P P C 15 16 P P P 12 13 No preference 14 P C C X wer
A graduate student believes that people consider faces with more contrast between lip color and skin tone as more feminine. She identifies the null hypothesis as: Ho: The level of contrast between lip color and skin tone does not affect how feminine a face is considered. She chooses a significance level of 0.05. After she collects the data and computes the sample statistics, it is time for her to make a decision about the null hypothesis. What are the two possible decisions that the graduate student can make? Check all that apply. There is not enough evidence to reject the hypothesis that the contrast between lip color and skin tone affects how feminine a face is considered. There is enough evidence to reject the hypothesis that the contrast between lip color and skin tone does not affect how feminine a face is considered. There is enough evidence to reject the hypothesis that the contrast between lip color and skin tone affects how feminine a face is considered. ☐ There is not enough…
Q6: Briefly, explain the importance of the tests shown in the following table in Hypothesis testing. Kolmogorov-Smimov Weight gain: Regular Diet Keto-Diet Statistic 0.360 0.146 df Sig. 8 .000 10 0.234 Shapiro-Wilk Statistic df 0.827 0.966 8 10 Sig. 0.021 0.850
A corporate lawyer wonders whether the vigor of antitrust enforcement differed in the 2010s compared to the 2000s. A sample of 10 firms is selected from the Fortune 500 list, and the data of table below are collected. Make an appropriate hypothesis test at the 5 percent level of significance using sign test. Number of Indictments (Charges) Firm 2000s 2010s A 5 7 B 6 8 C 2 3 D 7 9 E 10 9 F 15 20 G 9 18 H 12 7 I 8 12 J 3 7
OI al College is less likely to attend orientation than men before they begin their coursework. A random sample of freshmen at Oxnard College were asked what their gender is and whether they attended orientation. The results of the survey are shown below: Data for Gender vs. Orientation Attendance Select an answer Women Men 439 242 What can be concluded at the a = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Yes 350 No 262 Ho: Select an answer ✓ Select an answer ✓ Select an answer ✓ (please enter a decimal and note that p1 and μl represent the proportion and mean for women and p2 and μ2 represent the proportion and mean for men.) H₁: b. The test statistic ? | = c. The p-value d. The p-value is ? ✓ a e. Based on this, we should f. Thus, the final conclusion is that ... Select an answer ✓ Select an answer (Please enter a decimal) (please show your answer to 3 decimal places.) (Please show your answer to 4…
John joined Zappy Food Delivery as a food delivery rider for the past 32 weeks. The average earning of a food delivery person in the company is $895 per week. Conduct a hypothesis test at 5% significance level, to determine John’s earning compared to that of an average delivery person in Zappy Food Delivery. Refer to the attached table for John’s weekly earnings for the past 32 weeks. Use the following pointers to guide you to answer this question. • Name the test you will be conducting and explain the reason for your choice • The null and alternative hypotheses • Critical Value • Your calculation • Your outcome of the Hypothesis Testing
Discuss the basic strategy for performing a hypothesis test to compare the means of two populations, based on independent samples.
A sports reporter suggests that professional baseball players must be, on average, older than professional football players, since football is a contact sport and players are more susceptible to concussions and serious injuries. Players were selected at random from both professional baseball (MLB) and professional football (NFL). The data are summarized below. | MLB | NFL Sample size | Sample mean | 27.7 | 25.5 47 | 43 Sample SD | 2.8 | 3.3 Consider the hypothesis testing problem Ho : µi µ2 Hi s HZ against На: where u1 is the mean age of the players in professional baseball (MLB), and u2 is the mean age of the players in professional football (NFL). Calculate the test statistic in a two-sample t-test assuming equal variances.

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