g. The sample means does not differ significantly because the p value is higher than 0.05…
The microbrewery is trying to determine why profitability is inconsistent with sales. Over the past couple years the profits have decreased. The hypothesis is to determine if the mean net revenue for the first half of the year is less than or equal to the mean net revenue for the second half of the year. The variables used in the determination are sales (dependent variable) and cost of goods sold (COGS) (independent variable).…
Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations you made over the course of Part I.…
According to a study on which brands of popcorn yields the most popcorn by Sean Boyd (2010) “The Jolly Time popcorn had the lowest amount of un-popped kernels”. But another researcher Ben Popken (2008) Which popcorn pops the most, said, “ACTII was the winner.” Since there are many experiments with different results of the most popped kernels we will chose just one name brand at the local store and keep the brand name constant for this experiment. The name brand of popcorn is not the independent variable so we will use a random store bought popcorn for this experiment. Both of these experiments are similar to each other. They are testing the hypothesis on which brand name produces the least amount of un-popped kernels. In this current…
Exercise Question 31: A new weight-watching company, Weight Reducers International, advertises that those who join will lose, on the average, 10 pounds the first two weeks with a standard deviation of 2.8 pounds. A random sample of 50 people who joined the new weight reduction program revealed the mean loss to be 9 pounds. At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p-value…
There are 500 employees in the sales force of Company W that are spread out over Southeast, Northeast, West, and Central regions. The company has recently incorporated a new software program in and attempt to monitor how many sales are generated by each employee. It is expected that each month each region should sell the same aamount of products. It has been noted that over the last three months however that this expectation has only been reached by half of the employees in each region. Before a decision can be made on possible theories as to why this is, some statistical testing must be done. Company W knows that there are different techniques that can be used to statistically analyze this issue. The one that we will be discussing here will be non-parametic statistics and hypoyhesis testing along with chi-square distribution testing of data. Let us begin by first defining these terms for a better understanding.…
Restate your Hypothesis and state whether or not if it is correct and why. Refer to your data and give numbers.…
In the experiment there will be three trials with equally shaped patties of all the meat and boil them at the same temperature, time and amount of water. After placing the remaining fat from the pot in the refrigerator, and allow it to cool, then scoop the coagulated fat and weigh it. The independent variables in this experiment are the different types of ground beef; Regular, Lean, and Extra Lean. The dependent variables in the experiment are the 400ml of water in each boiling pot, three hours stored in the refrigerator to allow the fat to cool, 70g of Regular Ground Beef, 70g of Lean Ground Beef, 70g of Extra Lean Ground Beef, and the six minutes of cooking…
3. You are the manager of a fast food store. Part of your job is to report which special is selling best to the boss at the end of each day. Use your knowledge of descriptive statistics and write one paragraph to let the boss know what happened today. Use the following data. Do not use IBM® SPSS® software to compute the statistics needed; rather, do it by hand. Include a copy of your work. PLEASE REFER TO APPENDIX FOR WORK.…
The question that this experiment answered was “Does the type of material affect the amount of oil absorbed.” The hypothesis was “If a sponge is put in a container of oil, then it will absorb the most.” The independent variable was the type of material used, rag, paper towel, and sponge. The dependent variable was the amount of oil absorbed. Control variables were the same brand of the different materials used, the same batch of the mixture of paint and baby oil, and the same place. The experimental groups were the materials being placed in the oil. There were three control groups one was the sponge another was a paper towel and the last one was the rag. The procedures were that one at a time the materials were placed in the container. There are three groups, one group with the time in the oil at fifteen seconds, another group with a time limit of thirty seconds, and the last group with the time limit of sixty seconds.…
At parties, when all six-foot-five of him thundered into the room, attention shifted to him like sunflowers turning to the sun…
2-The CEO of Kohl’s is interested in understanding whether the average store sales for the stores in the east coast are significantly different from those in the west coast. The CEO suspects that since the company has been advertising more in the east coast, the east coast sales would be higher than those in the west coast. In order to test his hypothesis, the CEO asks his secretary to randomly pick 10 stores each in the east and west coasts and record their average monthly sales for the past year(in thousands of dollars).…
An experimenter wants to study the relationship between breast-feeding and Infant Formula X in underdeveloped countries. She randomly assigns 300 infants to Group A or B and weighs the infants every three days for the first four weeks of life.…
A researcher would like to find out whether a man's nickname affects his cholesterol reading (though it is not clear why she believes it should). She records the cholesterol readings of 23 men nicknamed Sam, 24 men nicknamed Lou and 19 men nicknamed Mac; her data appears in the table to the right. She wants to know whether the differences in the average readings are significant; i.e., whether the average reading of all men nicknamed Sam is different from the average reading of all Lous or whether these averages differ from the average reading of all Macs.…
Describe the relationship between several independent variables and a dependent variable using multiple regression analysis.…