Please use the topics Hypothesis Tests for a Population Mean, Standard Deviation Known, Hypothesis Tests for a Population Mean, Standard Deviation Unknown, Hypothesis Tests for Proportions, Determinin

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Please use the topics Hypothesis Tests for a Population Mean, Standard Deviation Known, Hypothesis Tests for a Population Mean, Standard Deviation Unknown, Hypothesis Tests for Proportions, Determining Which Method to Use, Hypothesis Tests for the Difference Between Two Means: Independent Samples to complete this worksheet. Please show all work.

Please use the topics Hypothesis Tests for a Population Mean, Standard Deviation Known, Hypothesis Tests for a Population Mean, Standard Deviation Unknown, Hypothesis Tests for Proportions, Determinin
Exam #3 Introduction to Statistics Spring 202 1 Explain each solution. Do not write any part of your solution on this sheet. A Harris poll conducted during January 2019 found that 944 of 1348 adult Americans 18 years or older believe that gay couples should have the right to marry. 1. What percent of Americans believe that gay couples should have the right to marry. Vanessa decided to enroll in a speed reading class to read books faster before she began a class about the law. Prior to enrolling Jennifer read at a rate of 198 wpm. The following data represents her new reading times (in wpm) after taking the class. 206 217 197 199 210 210 197 212 227 209 2. The class offered a money back guarantee. Is Vanessa getting better or should she ask for her money back? During California’s initial shelter -in- place order, the Solano County Chamber of Commerce believed that 74% of residents would return to dine – in r estaurants once the order was lifted. A poll taken in July now finds that 79 of 111 Solano residents would return to a restaurant once restrictions were lifted. 3. The Chamber of Commerce says that people are now more reluctant to return to restaurant din ing. Do you agree? A nutritionist was interested in developing a model that describes the relation between the amount of fat in cheeseburgers and the number of calories. She obtained the following data: cheeseburger Fat (in grams) Calories 1/4 -pounder, single (Wendy’s) 20 430 Whataburger (Whataburger ) 39 750 Cheeseburger (In -n-Out) 27 480 Big Mac (McDonald’s) 29 540 1/4 -pounder (McDonald’s) 26 510 Whopper (Burger King) 47 760 Jumbo Jack (Jack in the Box) 35 690 Double Steakburger (Steak ‘n Shake) 38 632 4. Should the nutritionist pursue her idea? If asked to estimate the grams of fat in an 800 -calorie Squeezeburger (Squeeze Inn), what would you say?

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