A horticulture student is interested on the antifungal properties of three plant species.  Leaf extracts from each species were mixed with agar based growth medium and poured into 5 Petri dishes. The Petri dishes were streaked with fungi isolates and the area in sq mm of fungal growth was measured after seven days. Assuming the areas of growth are not normally distributed, which is the most appropriate analysis for the experiment to find difference? A. Kruskal Wallis B. Friedman C. t-test D. sign test

Q: Workers in the office like to drink coffee during work. A doctor is concerned about this situation…

A: We want to test the hypothesis by using t test

Q: personal transport. For research, random samples have been taken from two cities X and Y. The amount…

A:

Q: In developing a generic drug, it is necessary for a manufacturer of biopharmaceutical products to…

A: We have given that  Sample size n =20 Sample mean =18.22 Standard deviation =0.92

Q: To compare the effectiveness of competing fertilizers on increasing radish size, researchers…

A: Use the given data to form the excel table: Radish Fertiliser A x-μ x-μ2 1 1.4…

Q: A batch of ointment with an average net content of 5 g was evaluated for weight uniformity test.…

A: From the provided information, Population mean (µ) = 5 g Sample size (n) = 10 The mean and standard…

Q: How Big Are Gribbles? Gribbles are small, pale white, marine worms that bore through wood. While…

A: Let μ and σ denote respectively the population mean and standard deviation of the length of…

Q: In a study examining overweight and obese college football players, Mathews and Wagner (2008) found…

A: The question is about hypothesis testing.In a study examining overweight and obese college football…

Q: The City Council proposed to utilize government-owned land with an area of 12,150 square meters.…

A: Given that, The City Council proposed to utilize government-owned land with an area of 12,150 square…

Q: A researcher measured the conductivity of a 15 sample (0.1 mm copper) cable and then measured the…

A: Given that a researcher measured the conductivity of a 15 sample (0.1 mm copper) cable and then…

Q: Nicole and Jen are atidnyjng factors affecting FEV(forced exploratory volume-  how much air a person…

A: It is given that the line of best fit between the HEIGHT and FEV variables (regression equation) is,…

Q: The spotted lanternfly, Lycorma delicatula, is an invasive species to the United States that has the…

A: Given that Length of insect: AVG = 1 inch, SD = 0.15 inchNumber of eggs: AVG = 40 eggs, SD = 5 eggsr…

Q: Sulfite is a drug used to treat asthma. In a sample of 400 patients treated at Ridge Hospital with…

A: Given Sulfite is a drug used to treat asthma. In a sample of 400 patients treated at Ridge Hospital…

Q: The average worker at a local brake manufacturer produces 10 brakes per day (other statistical…

A: Test is that whether the new assembly method increased worker productivity I.e whether the mean…

Q: The manager of a garden store finds a packets of last year’s seeds, and plants them as a test.…

A: For the given data Select the correct choice

Q: The effectiveness of a new bug repellent is tested on 1616 subjects for a 10 hour period. (Assume…

A: The one sample t- test statistic is used to find the significant difference between the population…

Q: From previous data, the average amount of apple yield from an orchard is 60 kg. The farmers predict…

A: From previous data, the average amount of apple yield from an orchard is 60 kg. The farmers predict…

Q: The results of a study that used an independent samples t-test was t(28) = 2.14, p = .01. Based on…

A: t(28) means that degree of freedom  = 28 Now, degree of freedom for a t-test one sample case  = n-1.

Q: a. An experiment to compare the tension bond strength of polymer lates modified mortar to that of…

A: Following are the Explanation of the question Use the Two sample Z test to Compare the two groups of…

Q: Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these…

A: Given: Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of…

Q: Nurses at Lynchburg General plan to implement a new training program for nursing aids to deal with…

A: Given info: The nurses reported the following statistical statement: χ2(1, N = 12) = 2.71, p = .52.

Q: The table below shows the stem density (number of stems per m2 ) of seven plots before and after…

A: The question is about hypo. testing Given : No. of plots ( n ) = 7 Result from R output : Test stat…

Q: Three different methods of tillage and four varieties were tested in a field experiment using a…

A: The objective is to interpret the descriptive statistics of the given tables.

Q: A pharmaceutical company fills a drug which is in a powder form into a bottle. It has an automated…

A: there are 5 samples so n=5 for n=5 use table as shown first we enter all the data in the…

Q: Answer the given problem. Use the steps in hypothesis testing when presenting the results.         A…

A: An ANOVA test for single factor is used to compare the mean of more than 2 groups. In this test the…

Q: Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes a day.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A group of researchers wants to know whether men (population 1) are more likely than women…

A:

Q: Patients with rheumatoid arthritis are at a greater risk of developing osteoporosis. The reasons are…

A: Solution: Given information: n= 43   Sample size x= 33.8 pg/ml   Sample mean σ=23.6 pg/ml…

Q: Two methods of determining fat content in milk are being tested. Samples are taken from 6 different…

A: For the given data Perform paired t test then select the correct choice

Q: To determine whether there is a systematic difference between the weights obtained with two…

A: Solution-: To determine whether there is a systematic difference between the weights obtained with…

Q: The lead time of producing a product is measured from the point of raw material acquisition to…

A: Given, Spec X Spec Y 2.9 2.4 3.4 2.2 2.8 3 2.9 2.8 2.7 2.8 3.1 3.3 3.5 2.4 3.2…

Q: Miles per Gallon 28 a. Show tabular computations here b. Show complete solution of the sample…

A: Given that  X Y 30 28 50 25 40 25 55 23 30 30 25 32 60 21 25 35 50 26 55 25

Q: An analyst wants to know whether there is any significant difference in the measurement results…

A: An analyst wants to know whether there is any significant difference in the measurement results…

Q: oli.cmu.edu/course/a2/rest/assessement/deliver?attempt=1&context=7e118d530a0001dc243d5eafc726f6eb…

A: Given data : Researchers created a new fertilizer. They conducted an experiment to compare the new…