A Hollywood studio believes that a movie that is considered a drama will draw a larger crowd on average than a movie that is considered a comedy. To test this theory,the studio randomly selects several movies that are classified as dramas and several movies that are classified as comedies and determines the box office revenue foreach movie. The results of the survey are as follows. Do the data substantiate the studio's belief that dramas will draw a larger crowd on average than comedies atα = 0.05? Let dramas be Population 1 and comedies be Population 2. Assume that the population variances are approximately equal.Box Office Revenues(Millions of Dollars)DramaComedyn x S14 150 5011 120 30Copy DataStep 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below.Ho M₁ M₂ = 0Ha:μ₁-1₂..0

The sample information for the data from the two populations is given as:nsDrama1415050Comedy1112030

Answered: A Hollywood studio believes that a…

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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Researchers conducted two surveys about teens are their use of social media. The first survey asked a random sample of 800 U.S. teens about their use of Instagram. A second survey asked the same questions to a random sample of 2253 Canadian teens. In these two studies, 73% of U.S. teens and 88% of Canadian teens said that they use Instagram. Use these results to answer the following questions about the proportion of U.S. and Canadian teens that use Instagram. Is there a statistically significant difference between the use of social media by U.S. teens and Canadian teens? No, there is no difference between the proportion of U.S. teens that use Instagram and the proportion of Canadian teens that use Instagram because both the lower limit and the upper limit of the confidence interval are negative values. Yes, the proportion of U.S. teens that use Instagram is significantly less than the proportion of Canadian teens that use Instagram difference because both…
A sports equipment manufacturer has developed a new reasonably priced golf ball that it hopes will allow average golfers to hit the ball straighter. A concern is that this new technology might impact on the distance that the ball travels. To compare distances, Sarah, a company researcher, conducts an experiment where 20 current balls and 20 new balls are subjected to distance tests, using a mechanical hitting device for consistency. The results of the tests, with distances given to the nearest metre, are given in Table 1. Table 1 Distances travelled by golf balls Current golf ball New golf ball 299 292 292 291 293 285 295 288 283 273 280 305 280 286 311 308 292 291 283 296 292 294 309 281 311 286 302 302 294 296 297 303 287 298 282 293 300 290 297 284
The council leaders of a small town would like to determine the average number of people living in each household. To accomplish this, they send a questionnaire to each residence listed in the town address records, asking the head of the household to record the number of people living in the dwelling. They follow this up with visits to those households that have not responded to the questionnaire until the data collection process is complete. Which of the following is the best description of the method for data collection used by the council leaders? (A) A convenience sample (B) A simple random sample (C) A stratified random sample (D) A cluster random sample (E) A census
The entirety of the data set will be in the two pictures
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