A nonlinear relationship between analyte concentration and intensity during a fluorescence experiment. The function becomes exponential (tails off) as higher concentrations are analyzed. How would you modify the experiment or the instrument to combat this problem? Describe two solutions.

a) What are the possible errors /uncertainties that can occur in an Incline Friction Experiment? (as detailed as possible for this part)(at least 500 words)

b) What is the Theory about the Incline Friction experiment? (as detailed as possible for this part)(At least 500 words)

CHEM 114 ‐ Lab Experiment 8 Equilibrium II – Le Chatelier’s Principle

1. There are safety hazards in this lab experiment.  Specifically, what are the safety hazards associated with the experimental procedure?  Be sure to clearly identify and explain why these are hazards.

The successful interpretation of Young’s double slit experiment is dependent on a complete understanding of Huygen’s principle. Explain what Huygen’s principle tells us about a wave and how it is used to demonstrate that the double slit experiment shows that light is a wave.

A binomial probability experiment is conducted with the given parameters. Use technology to find the probability of x successes in the n independent trials of the experiment. Use the Tech Help button for further assistance. n=9, p=0.2, x < 4

If I want to design an experiment related to kinetic friction, can the following proposal meet the requirement?
By varying the weight of an object and measure the stopping distance of that object.
Is this related to kinetic friction? If not, how should I change my experiment?

You have just isolated a new strain of Gram negative bacteria that can catabolize the sugar aspartame. Genome comparisons to all other strains don't provide any insight into the identity of this pathway. 1) Describe an experiment to identify the pathway coding for aspartame catabolism 2) Describe an experiment to move this pathway into E. coli 3) Given what we learned in class, describe how this pathway is likely positively regulated and where promoter sequence would be 4) Describe an experiment to phenotypically confirm how this pathway is regulated using a SCREEN involving styrene catabolism 5) Describe an experiment to phenotypically confirm how this pathway is regulated using a SELECTION involving LacZ

Please list relevant strain/plasmid names, or draw/describe your own custom plasmids for these experiments

A researcher has used a complex design to study the effects of caffeine (caffeinated and decaffeinated) and problem difficulty (easy and hard) on subjects’ memories. The researcher tested a total of eighty subjects, with twenty subjects randomly assigned to each of the four groups resulting from the factorial combination of the two independent variables. The data presented in the table represent the percentage words that subjects recalled correctly in each of the four conditions.

1. Is there evidence of a possible interaction in this experiment?

2.What aspects of the results of this experiment would lead you to be hesitant to interpret an interaction, if one were present in this experiment?

3.How could the researcher modify the experiment so as to be able to interpret an interaction if it should occur?

Suppose you heard from a friend that only 75% of people pass Math 1044. In disbelief, you poll 50 randomly selected Math 1044 students and find that 43 of them passed. Answer the following questions with a significance threshold of α = 0.05. You may assume the success-failure conditions hold.

(a) What is the null hypothesis, H0, for this experiment?

(b) What are two valid alternative hypotheses, Ha for this experiment?

(c) Compute the p-value for this experiment using a one-tailed test.

(d) Would we accept or reject H0 using the one-tailed p-value? Justify.

(e) Compute the p-value for this experiment using a two-tailed test.

(f) Would we accept or reject H0 using the two-tailed p-value? Justify.

Suppose that five different methods are used to refine an oil product. Each method may result in a different viscosity of the product. Each method is applied to one barrel of oil at a time which results in one batch of product. A company wants to use the method which results in the lowest viscosity, and they want to design an experiment to test this.

a) What are the experimental units in this experiment?

b) What are the treatments?

c) What is the response variable?

d) Suppose that 4 different plants use each of these 5 methods. Each plant is willing to be involved in the experiment. Each plant will produce 10 batches. Explain how the use of blocking should be incorporated into our experiment and how the randomization is to be done. (Give a simple table with the units at each plant labeled from 1 to 10.)