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- What should the parents conclude? Choose the best answer.Read the following information carefully then answer all the questions that follow. A marketing company does a fast-food survey and asks 500 people what they order on the side with their takeaway meals. They found that 141 people choose ice-cream, while 127 people choose burger. Finally, 149 people choose cola. They also found that 48 people choose ice-cream and cola, 27 people choose cola and burger, 32 people choose burger and ice-cream, and 10 people choose 3 of them; Burger, ice- cream and cola. a) Draw a Venn diagram and enter all the given information. b) Using the Venn Diagram and determine the number of people who order only Burger. c) What is the probability that a person orders ice-cream but not cola? d) What is the probability that a person will order no ice-cream?The pass result of 50 students who took up a test is given below : Marks No. of students 4 5 10 6 9 7 6 8 4 8 3 If the average marks of all the 50 students were 5 16, find out the average marks of the students who failed.
- A TOTAL of 63 students preferred chocolate ice cream. Out of the 100 student responses, 43 were female, and 34 students were both male AND preferred chocolate ice cream.A reporter for a local television station visits the city's new upscale shopping mall the day before Christmas to interview shoppers. He questions the first 25 shoppers he meets outside one of department stores at the mall. He asks them whether their overall feelings about Christmas shopping are positive, neutral, or negative. Select the reason(s) why it may be risky to act as if the first 25 shoppers at this particular location are an SRS of all shoppers in the city. Surveying shoppers the day before Christmas is a convenience sample, so it is a simple random sample. Shoppers at the mall the day before Christmas does not guarantee every shopper in the population has an equal chance to be in the sample. Surveying shoppers at the mall the day after Christmas may not be a good represenation of all shoppers in the city. Having the reporter ask questions is not a double‑blind study.How do I complete the Venn diagram?
- Collect five different advertisements. In five short paragraphs, describe the primary market for the products and the type of person who would (in your opinion) typically buy the product. What information from self-concepts did you use to make your evaluation?Lilo wants to know if equal proportions of students in her class know how to surf well, know how to surf a little or do not know how to surf. She randomly samples 60 students in her class and asks them if they know how to surf. Twenty students indicate that they do not know how to surf 'don't know', while 30 students indicate they know how to surf well 'know well,' and 10 students indicate they know how to surf ‘a little’. State the hypothesis being tested by Lilo (H0 and HA)? Test Lilo's hypothesis at α of .05. Enter the test statistic, critical value, and decision as part of your answer. Test statistic = Critical value = Do you reject or retain the null hypothesis that the slope is not different from zero? (Enter "Reject" or "Retain"):What is the relationship between the p-value for one-sided vs two-sided alternatives? Draw it and show the difference.
- An instructor was interested in how framing impacted her students' feelings about her grades. She randomly assiagned students to either receive positive ("This is an improvement") or negative ("You will still need to do a lot of work on this") feedback on an assignment. She further assigned students to a points lost (-10 points) or points gained (+90 condition) condition. After teach assignment was returned, she asked students to rate the fairness of their grades on a 10-point scale (0 = not fair at all, 10 = extremely fair). Points Lost Points Gained Mean Positive Feedback 7.8 7.9 7.85 Negative Feedback 4.3 5.5 4.9 Mean 6.05 6.7…Helen wants to compare two machines in her factory to see if the wrapping was satisfactory. She wants to know if there is a difference between the two machines. She randomly chooses 56 packs that were wrapped with machine A and finds among them 47 that were satisfactory. She also randomly chooses 25 packs that were wrapped by machine B and notices that 14 of them were satisfactory. Use this information for both parts.In a recent survey, 75 students reported whether they liked their potatoes Mashed, French-fried, or Twice-baked. 39 liked them mashed, 39 liked French fried, and 33 liked twice baked potatoes. Additionally, 21 students liked both mashed and fried potatoes, 26 liked French fries and twice baked potatoes, 19 liked mashed and baked, and 12 liked all three styles. How many students hate potatoes? Explain why your answer is correct.