Suppose the owners of a new bed and breakfast establishment are interested in conducting an experiment to determine effective advertisement strategies for increasing the number of reservations. The bed and breakfast owners intend to rotate advertisements for 12 weeks between a travel website, a travel magazine and a local billboard. Customers making reservations will be asked if they saw the advertisement. In this experiment, the independent variable has how many levels?

A) 1

B) 2

C) 3

D) 4

E) 0

In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (Z). Drop Charge (Z) A 2.55×10−14 B 4.59×10−14 C 5.10×10−14 D 5.61×10−14 E 7.65×10−14 What is the charge on an electron in zeets? Express your answer in zeets using two significant figures.

A.) Dr. Smith conducts an experiment in which participants are asked to respond to fine lines so that the smallest line-width the participant can detect is identified. This best illustrates the _____ relationship.

For one of your trials during the equilibrium experiment at room temperature as described in the lab manual. You determine the following for Tube #1 while performing the experiment as described in the lab manual. For the standard solution in tube # 5 the absorbance value is 0.789 and the [FeSCN2+]eq of the standard is 0.0002000M. The following resuts apply to tube #1:

[Fe3+]o - 0.00100308 M

[SCN-]o - 0.00040005 M

absorbance tube 1 - 0.1657 au

Determine Kc.

After viruses infect cells, the empty virions stay attached to the infected cells. Hershey and Chase used a blender to separate empty virion particles from the cells. Why was this important? What would have been the result if they hadn’t done this?

a. Many proteins are post-translationally modified with the addition of a phosphate. Could this have affected Hershey and Chase’s experiment? How

b. What other weakness may the Hershey Chase experiment have?

1) What alkene(s) will be produced when each of the following alcohols is dehydrated?

2- propanol

2- butanol

2) Why is phosphoric acid preferred over sulfuric acid for dehydration of alcohols?

3) What measures should be taken if droplets of phosphoric acid are splashed in the eyes?

4) Give an example of a skeletal rearrangement during a dehydration experiment.

5) What is the purpose of adding anhydrous sodium sulfate to the dehydration product in experiment B?

Gather three close friends and conduct this simple experiment. Mention a 10-digit code number and allow them to memorize in 5 minutes. After five minutes let each person mention the 10-digit code number. Repeat experiment and let each person mention the code after 20 minutes i) what were your observations? Explain how this relate to short-term memory span in human beings.

A system is composed of five components, each of which is either working or failed. Consider an experiment that consists of observing the status of each component, and let the outcome of the experiment be given by the vector (x1, x2, x3, x4, x5) where xi is equal to 1 if component i is working and is equal to 0 if component i has failed. Suppose that two components are working and three components have failed. In how many ways can this occur?

1. An engineer suspects that the surface finish of a metal part is influenced by the feed rate and the depth of cut. He selects three feed rates and four depths of cut.

Feed Rate (in/min)                        0.20     0.25     0.30

Depth of Cut (in)                          0.15     0.18     0.20     0.25

(a) Design a complete factorial experiment for the experimenter.

(b) Now, suppose two machines (A and B) are used to complete the experiment. How would you change the experiments in (a) to avoid Block Effect?

Write a program that simulates the flipping of a coin n times, where n is specified by the user. The program should use random generation to flip the coin and each result is recorded. Your program should prompt the user for the size of the experiment n, flip the coin n times, display the sequence of Heads and Tails as a string of H (for Head) and T (for Tail) characters, and display the frequencies of heads and tails in the experiment. Use functions for full credit.