C) Which of the following questions would the researcher not be able to explore usinga 2 proportion z -test? Explain why.I. Are the app users in Mexico less likely to use an iPhone than the app users inCanada?II. Is the proportion of iPhone users different on T-Mobile than it is on Verizon?II. On average are iPhone users older than T-mobile users?D) The social media company know that older users are more likely to spend money onthe app than younger users. They want to know which type of smartphone has olderusers. Write the null and alternative hypothesis the researcher would use to determineif there is a mean difference in the age of users who have iPhones versus Samsungphone users.E) State the name of the procedure you will use to conduct the hypothesis test. Explainwhy you selected this procedure and state your significance level here.F) Use the calculations below and your significance level from part E to write theirconclusion in context.t Distribution with df = 29.3Test Statistic: L=-1.853, P-value - 0.074010.9200.037I 0.0373.3.85 A social media app is conducting a study on the amount of time users spend on theapp. They collect the following variables.Age Years: How old they are in years?Income: Monthly IncomeLocation: What country do they live in?Device: Do they use an iPhone, Samsung, other?Service: Who provides their mobile phone service? For example: T-Mobile, At&t,Verizon, ectHours: How many hours do they spend on the app per week.A) Which variable could the research construct a one proportion z-interval for?B) The social media app just launched a new algorithm that suggest content in an effortto increase the amount of time the user spends on the app. The researchers want touse the survey results to see if there is statistically significant evidence that on averageusers spend more than 10 hours per week on the social media app. The researchersfound in their sample of 44 users, the mean hours spent on the app is 10.5 hours witha standard deviation of 5.675 hours. Which type of hypothesis test would theyuse? Explain.

Answered: Image /qna-images/answer/d2680e0e-da9d-4156-a3de-e684c09245a8.jpg

Answered: C) Which of the following questions…

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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Please see picture. Need this asap please and thank you.
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123456789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 < A B College High School 496 528 496 592 544 512 656 528 480 576 560 656 496 624 640 608 = 420 432 432 564 528 588 456 516 432 396 420 552 Data + с Part b Mean D Difference Between the Means Part d Significance Level (Alpha) E Can we reject the null hypothesis? (Enter "Can" or "Cannot") College Part c After reading these instructions delete all text in this shaded area. Use the XLMiner Analysis ToolPak to conduct your t-Test analysis. After deleting all text in this shaded area, set the output range in the ToolPak to the top left cell of this area (D8). Your t-Test output should fit into this shaded area. F 0.05 High School Formula H #N/A #N/A #N/A #N/A J K L
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