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- IN excel if possibleGreat Grasslands Grains, Inc. (GGG) manufactures and sells a wide variety of breakfast cereals. GGG’sproduct development lab recently created a new cereal that consists of rice flakes and banana-flavoredmarshmallows. The company’s marketing research department has tested the new cereal extensivelyand has found that consumers are enthusiastic about the cereal when 16-ounce boxes contain at least1.6 ounces and no more than 2.4 ounces of the banana-flavored marshmallows.As GGG prepares to begin producing and selling 16-ounce boxes of the new cereal, which it has namedGo Bananas management is concerned about the amount of banana-flavored marshmallows. It wants tobe careful not to include less than 1.6 ounces or more than 2.4 ounces of banana-flavoredmarshmallows in each 16-ounce box of Go Bananas. Tina Finkel, VP of Production for GGG, hassuggested that the company measure the weight of banana-flavored marshmallows in a random sampleof 25 boxes of Go Bananas on a weekly…A researcher wants to explore the differences in health effects from two different types of sugar. She hypothesizes that artificial sweetener has lower long term health benefits than natural sugar. What is her null hypothesis? Fill in the blank. H0: μArtificalSweetener__________ μNaturalSugar Group of answer choices a) Less than b) Less than or equal to c) Greater than d) Greater than or equal to6, You may need to use the appropriate technology to answer this question. A client wants to determine whether there is a significant difference in the time required to complete a program evaluation with the three different methods that are in common use. Suppose the times (in hours) required for each of 18 evaluators to conduct a program evaluation follow. Method 1 Method 2 Method 3 69 63 59 71 74 65 67 77 68 76 69 55 75 73 58 73 70 63 a, Use ? = 0.05 and test to see whether there is a significant difference in the time required by the three methods. State the null and alternative hypotheses. - H0: All populations of times are identical.Ha: Not all populations of times are identical. - H0: Median1 = Median2 = Median3Ha: Median1 > Median2 > Median3 - H0: Not all populations of times are identical.Ha: All populations of times are identical. - H0: Median1 ≠ Median2 ≠ Median3Ha: Median1 = Median2 = Median3 - H0: Median1 = Median2 = Median3Ha: Median1 ≠ Median2…
- Two different types of polishing solutions are being evaluated for possible use in a tumble-polish operation for manufacturing interocular lenses used in the human eye following cataract surgery. Three hundred lenses were tumble polished using the first polishing solution, and ofthis number, 253 had no polishing-induced defects. Another 300 lenses were tumble-polishedusing the second polishing solution, and 196 lenses were satisfactory upon completion.(a) Is there any reason to believe that the two polishing solutions differ? Use α = 0.01The ABC corporation is opening new retail sales outlets and they want to staff these stores with employees most likely to be successful at selling the products. To meet this goal, ABC decides to study the sales staff at existing stores to determine if intelligence and extroversion (i.e., a friendly and outgoing personality) predict sales performance of current employees. ABC's logic is that if intelligence and extroversion predicts sales performance, then a good strategy for new stores is to hire intelligent extroverts for the sales positions. To conduct the study, all current retail sales employees at existing stores take psychological tests designed to measure intelligence and extroversion. Also, past sales performance data is checked for each employee. In the end, there are three scores for each sales person: 1. an intelligence score (on a scale of 50-low intelligence to 150-high intelligence), 2. an extroversion score (on a scale of 15-low extroversion to 30-high extroversion), and…Christina does a study that compares college age and high school age students on the amount of time they spend doing homework. She is interested in testing the paradoxical Hypothesis that high school students spend more time on working on school- related work than college students, even though college students would be thought to be more motivated to study and do well in their work. She discovers that high school students report doing 8.7 hours of homework per week and college students report doing 5.3 hours of homework per week. She computes the standard error of the difference to be 1.95. What is the value of the test statistic she computes?
- You are working at a sandwich shop and recently became the owner. You want to make sure that the company you are buying bread from is sending the appropriate number of bread rolls that you build your sandwiches with. The concern you have is that if you are receiving too few you are not getting bread that you need for sandwiches but too much and it will spoil. In looking at the company’s website they state that bags of bread rolls on average have 50 rolls and, through some digging on your own by calling the suppliers, you figure out that the standard deviation is 5. You grab 7 unopened bread roll bags that came in on the latest shipment. You are to find out if there are any concerns with regard to the number of rolls you are getting (significance of .05). See below for a table that displays the number of rolls in each bag: Total for each bag: 42 41 53 41 47 57 36 What is the null and alternative hypothesis? If you run the calculations, what do you find out? Did…You are working at a sandwich shop and recently became the owner. You want to make sure that the company you are buying bread from is sending the appropriate number of bread rolls that you build your sandwiches with. The concern you have is that if you are receiving too few you are not getting bread that you need for sandwiches but too much and it will spoil. In looking at the company’s website they state that bags of bread rolls on average have 50 rolls and, through some digging on your own by calling the suppliers, you figure out that the standard deviation is 5. You grab 7 unopened bread roll bags that came in on the latest shipment. You are to find out if there are any concerns with regard to the number of rolls you are getting (significance of .05). See below for a table that displays the number of rolls in each bag: Total for each bag: 42 41 53 41 47 57 36 What is the null and alternative hypothesis? If you run the calculations, what do…You want to determine whether the reasons given by workers for continuing their education is related to job type. In the study, you randomly collect the data shown in the contingency table. At α=0.01, can you conclude that the reason and type of worker are dependent? Complete parts (a) through (d). Reason Type of worker Professional Personal Both Technical 36 39 32 Other 47 21 32 Question content area bottom Part 1 (a) Identify the claim and state the null and alternative hypotheses. H0: Reasons are ▼ independent of dependent on the type of worker. Ha: Reasons are ▼ independent of dependent on the type of worker. The ▼ alternative hypothesis null hypothesis is the claim.
- A fast-food franchise is considering building a restaurant at a busy intersection. A financial advisor determines that the site is acceptable only if, on average, more than 300 automobiles pass the location per hour. If the advisor tests the hypotheses H0: μ ≤ 300 versus HA: μ > 300, μ stands for __________.Hypertension A national study found that treating people appropriately for high blood pressure reduced their overall mortality by 20%. Treating people adequately for hypertension has been dif- ficult because it is estimated that 50% of hypertensives do not know they have high blood pressure, 50% of those who do know are inadequately treated by their physicians, and 50% who are appropriately treated fail to follow this treat- ment by taking the right number of pills. 1 If the preceding 50% rates were each reduced to 40% by a massive education program, then what effect would this change have on the overall mortality rate among true hypertensives; that is, would the mortality rate decrease and, if so, what percentage of deaths among hypertensives could be prevented by the education program?A multinational corporation is considering starting a subsidiary in an Asiancountry. Management realizes that the success of the new subsidiary depends, in part,on the ensuing political climate in the target country. Management estimates that theprobability of success (in terms of resulting revenues of the subsidiary during its firstyear of operation) is 0.55 if the prevailing political situation is favorable, 0.30 if thepolitical situation is neutral, and 0.10 if the political situation during the year is unfavorable. Management further believes that the probabilities of favorable, neutral, andunfavorable political situations are 0.6, 0.2, and 0.2, respectively. What is the successprobability of the new subsidiary?