a) The research firm suggests that they should do a hypothesis test for Eropa. Why might this be a reasonable approach to take? State and explain the appropriate null and alternative hypotheses. (COMPANY DETAILS GIVEN IN THE END OF THE QUESTIONS)

b) Describe what a type 1 error and what a type 2 error would be in the context of this problem. Describe the consequences of each of these types of errors.

c) Eropa remembers that when she took Statistics 101 (she has a BA in Psychology) for some reason a significance level of 5% was always used for hypothesis tests. Explain to Eropa why she might not want to automatically use 5%. What factors should she consider when choosing the level of significance?

d) Getting firms to respond to a survey is expensive and usually requires some inducement for the respondent. The firm gives Eropa a flat price of $15,000 for 50 respondents to the survey (and a report) and $150 for each additional respondent. You don’t have enough information to tell Eropa what sample size she should use but please describe for her what factors she should consider when deciding how big a sample to buy.

DETAILS OF THE COMPANY:

Eropa, an entrepreneur, created a company that matches firms (hotels, conference centres, etc.) that need to hire temporary staff for events (weddings, galas, conference dinners, etc.) to people looking for temporary work. Most hotels do not have enough permanent staff for these large, occasional events so they rely on temporary staff. There are temp agencies that connect these employers with bartenders, servers and others wanting to pick up extra shifts; in fact Eropa used to work for one of those agencies. Eropa has created an online platform (analogous to Airbnb or Uber) to match employers and employees and she is successfully disrupting temp agencies in eastern Canada. Eropa is considering expanding to Western Canada but it won’t be cheap (she figures she needs $1.5 million if she expands) so she wants to get a sense of market demand first. Eropa knows that there are about 10,000 firms that stage events in Western Canada that might need to hire temporary staff. She figures that if each firm, on average needs to fill at least 500 shifts a year with temporary staff there will be enough demand to justify entering the market. So, since there is no publically available data on current demand, she hires a market research firm to survey a sample of the 10,000 firms to estimate average demand for temporary staff (in shifts per year).

Define a hydrograph and what is its relation to land in a watershed. Please explain in two paragraphs

In a population of toads, average body length is 30mm. Body length is variable and the narrow sense heritability for body length is 0.1 for this population. You cross a male of 20mm with a female of 22mm. In order to determine the expected average offspring length, what do you multiply with your heritability?

Draw line structures corresponding to each name below

1. (3E)-3,7-dimethyl-1,3,6-octatriene

2. 3,6-dimethyl-1,4-cyclohexadiene

1. What is the difference between a selection and a screen?
2. How does the bla gene encoding ampicillin resistanceconfer resistance?
3. What is transformation by electroporation? Why is this used in some bacteria?

In 1991 the Zambian Government began economic reforms which included the transport sector. The reforms in the transport sector resulted in the abolishment of parastatal companies like United Bus Service of Zambia, Mulungushi Bus Service, Zambia Airways and Contract Haulage to mention just a few. Your assignment is as follows;

1. Discuss how the reforms have affected the transport sector overall, in the passenger and freight transport. Conduct literature review about the transport reforms from the UNIP government policy perspective to the MMD government transport reforms.
2. Explain how a regulated transport sector and deregulated transport sector operate, what role does government play to ensure that there is transportation equity in the provision of the service.
3. Explain how cartels can distort the market functioning in the transport sector (Demand and supply).
4. Give your general observations about these reforms and what would be your recommendation to improve the current transport sector performance.

Q1 diagnosis of diabetes :

Q2 treatment for diabetes :

Q3 prevention for diabetes :

Q4 risk factors of diabetes :

describe how a company uses crowdsourcing to assist with its business.

If a heavily updated table contains many indexes, the time required to rebuild those indexes may degrade the overall performance of the database.

Select one:

a. True

b. False

Name the ways in which the correlation coefficient can be interpreted.

A four legged sling distributes its load equally among its four legs. When the load is picked up, each leg forms 45° with the horizontal. The nominal breaking strength of the chain is specified to be 10 tons. If the load that is carried is 5 tons, Would it be safe to carry the load? What factors might play a role in setting 20% as the safety factor?

#Write a function called clean_data. clean_data takes one
#parameter, a dictionary. The dictionary represents the
#observed rainfall in inches on a particular calendar day
#at a particular location. However, the data has some
#errors.
#
#clean_data should delete any key-value pair where the value
#has any of the following issues:
#
# - the type is not an integer or a float. Even if the value
# is a string that could be converted to an integer (e.g.
# "5") it should be deleted.
# - the value is less than 0: it's impossible to have a
# negative rainfall number, so this must be bad data.
# - the value is greater than 100: the world record for
# rainfall in a day was 71.8 inches
#
#Return the dictionary when you're done making your changes.
#
#Remember, the keyword del deletes items from lists
#and dictionaries. For example, to remove the key "key!" from
#the dictionary my_dict, you would write: del my_dict["key!"]
#Or, if the key was the variable my_key, you would write:
#del my_dict[my_key]
#
#Hint: If you try to delete items from the dictionary while
#looping through the dictionary, you'll run into problems!
#We should never change the number if items in a list or
#dictionary while looping through those items. Think about
#what you could do to keep track of which keys should be
#deleted so you can delete them after the loop is done.
#
#Hint 2: To check if a variable is an integer, use
#type(the_variable) == int. To check if a variable is a float,
#use type(the_variable) == float.

#Write your function here!

#Below are some lines of code that will test your function.
#You can change the value of the variable(s) to test your
#function with different inputs.
#
#If your function works correctly, this will originally
#print (although the order of the keys may vary):
#{"20190101": 5, "20190103": 7.5, "20190104": 0, "20190107": 1}
rainfall = {"20190101": 5, "20190102": "6", "20190103": 7.5,
"20190104": 0, "20190105": -7, "20190106": 102,
"20190107": 1}
print(clean_data(rainfall))

A company uses codes to represent its products, for example ABC2475A5R-14. Valid codes must have:

• At least 10 characters (some codes have more than 10 characters)

• Positions 4 through 7 must be digits (and represents the country in which the product will be sold)

• The character in the 10th position must be a capital letter and represents the security level of the product.

Write a Python program that will read 10 product codes from a text file (Codes.txt - attached below). Determine if each conforms to the rules listed above:

If it does conform, print a heading: Valid Code(s) are: and list the codes that are valid. If it does not conform, print a heading: Invalid Code(s) are: and list the codes that area invalid. Be sure to test all possible combinations.

Further, if the code is valid, due to new government security laws, products with a security level of R (restricted) are no longer to be sold in countries with a country code of 2000 or higher. Output a heading: Invalid Restricted Code(s) are: and list the codes that are invalid in case you encounter any products that violate these new laws.

here is the text file data

XYZ2755R-14
RST1234A6A-12
UVW24a6R7R-13
PQR3999F85-11
STI1281J9A-04
FOR2561T4R-54
BID2075U3R-55
AGA1475P1B01
JBT2175E5X-04
KAM1145X2R-05

Most proteins in the axon of a neuron are synthesized in the cell body. Use equations to show the need for active transport mechanisms in a neuron.