How many students do not like any of the three movie genre?Fifty-five (55) students were surveyed on their preference inmovies, and below is the result of the survey.30 like Horror28 like Fantasy5 like Comedy only8 like all three13 like Fantasy and Comedy12 like Horror and Comedy9 like Horror and FantasyO a. 0O b. 1О с. 2O d. 3

Answered: How many students do not like any of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A consumer agency wants to determine which of two laundry detergents, A or B, cleans clothes better. Fifty pieces of fabric are subjected to the same kinds of stains (grass, mud, coffee). Then 25 pieces are randomly assigned to be cleaned with detergent A and the remaining 25 pieces are cleaned with detergent B. After being laundered, the pieces of fabric are rated on a scale from 1–10, with 1 being the least clean to 10 being the most clean. The difference in mean ratings (A – B) was determined to be 1.5. Assuming there is no difference in the two detergents, 200 simulated differences in sample mean ratings are displayed in the dotplot. Using the dotplot and the difference in mean ratings from the samples, is there convincing evidence that the one detergent is better than the other? Yes, because a difference in mean rating of 1.5 or more occurred only 23 out of 200 times, meaning the difference is statistically significant and there is convincing evidence that A is more effective…
After the premiere of the new comedy Bumblebee, moviegoers were asked in a quick poll whether they liked the movie. Out of 100 adults, all but 21 said they liked the movie, whereas out of 50 teenagers, all but 16 said they liked the movie. Fill in the blanks below to make the most reasonable statement possible. At the movie premiere, ▼(Choose one) moviegoers liked the movie less. That is because only % liked the movie, whereas % of the ▼(Choose one) moviegoers liked the movie.
34
How many different ways are there to select a group of 4 out of 8 people for a survey?
520 students from UC Berkeley are surveyed about whether they are from Northern California, Southern California, Central California, or from another state or country. A researcher is interested in seeing if the proportion of students from each of the four regions are all the same for all UC Berkeley students. The table below shows the outcome of the survey. Fill in the expected frequencies. Frequencies of UCB Students' Home Towns Outcome Frequency Expected Frequency Northern California Southern California Central California Out of State 189 152 170 1000
A report just came out that stated that 22.9% of all Americans say that vanilla is their favorite ice cream, 23.3% say that chocolate is their favorite, 9.2% favor butter pecan, 8.9% favor strawberry, and the rest have other favorites. An ice cream shop owner thinks that her customers are not like the rest of America. The table below shows the results of 935 of her patrons' ice cream selections. What can be concluded at the αα = 0.01 significance level? Complete the table by filling in the expected frequencies. Round your answers to the nearest whole number.Frequencies of Favorite Ice Cream Outcome Frequency Expected Frequency Vanilla 224 Chocolate 228 Butter Pecan 84 Strawberry 70 Other 329 What is the correct statistical test to use?Select an answer Goodness-of-Fit Independence Paired t-test Homogeneity What are the null and alternative hypotheses?H0:H0: Favorite ice cream and where the ice cream is purchased are independent. The distribution…
a list of the over 2300 Henry Clay high School is compiled. from that list 250 names are randomly chosen and given a survey to complete. of those surveyed 72% said they intended to attend college after completing high school what would the 250 students surveyed would be an example of?
To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained. 127 students ate breakfast.183 students ate lunch.272 students ate dinner.60 students ate breakfast and lunch.111 students ate breakfast and dinner.90 students ate lunch and dinner.53 students ate all three meals. How many students ate (a) At least one meal in the cafeteria? students(b) Exactly one meal in the cafeteria? students(c) Only dinner in the cafeteria? students(d) Exactly two meals in the cafeteria? students

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