Q: The mars company claims that 13 percent of M&Ms plain candies distributed into bags are brown. Investigate this claim with an appropriate hypothesis test. Use a significance level of a= 0.05
|
Color |
Count |
|
Brown |
33 |
|
Non-Brown |
242 |
|
Total |
275 |
1. The p-value for this test statistic is: _______________.
2. Null Hypothesis:
3. Alternative Hypothesis:
4. Conclusion: We REJECT/DO NOT REJECT the null hypothesis. (Circle the correct answer) State what this conclusion means in terms of the problem.
5. Would it be more likely the null hypothesis is rejected for an individual bag of M&M’s, or when we poolthe class results together? Explain your answer.
In: Math
a) explain what the law of diminishing(marginal) return means. Does it apply to the short or long run? Is it only present in perfectly competitive markets?
b) how does a firm operating under perfect competition know when it is maximizing its profit-in other words, what is the rule that it follows? explain in detail
c) is the decision that the firm makes in part b a short or long run decision? why? explain the difference between the short and the long rum.
d) neoclassical theory says that in the long run, all firms operating under perfect competition earn zero profits. what is the rationale behind this apparently nonsensical statement? explain
In: Economics
14.19. Suppose that we have the following requirements for a
university database
that is used to keep track of students’ transcripts:
a. The university keeps track of each student’s name (Sname),
student number (Snum), Social Security number (Ssn), current
address (Sc_addr) and phone (Sc_phone), permanent address (Sp_addr)
and phone (Sp_phone), birth date (Bdate), sex (Sex), class (Class)
(‘freshman’, ‘sophomore’, … , ‘graduate’), major department
(Major_code), minor department (Minor_code) (if any), and degree
program (Prog) (‘b.a.’, ‘b.s.’, … , ‘ph.d.’). Both Ssn and student
number have unique values for each student.
b. Each department is described by a name (Dname), department code
(Dcode), office number (Doffice), office phone (Dphone), and
college
(Dcollege). Both name and code have unique values for each
department.
c. Each course has a course name (Cname), description (Cdesc),
cours number (Cnum), number of semester hours (Credit), level
(Level), and offering department (Cdept). The course number is
unique for each course.
d. Each section has an instructor (Iname), semester (Semester),
year (Year), course (Sec_course), and section number (Sec_num). The
section number
distinguishes different sections of the same course that are taught
during the same semester/year; its values are 1, 2, 3, … , up to
the total number of sections taught during each semester.
e. A grade record refers to a student (Ssn), a particular section,
and a grade (Grade).
Design a relational database schema for this database application.
First show all the functional dependencies that should hold among
the attributes. Then design relation schemas for the database that
are each in 3NF or BCNF. Specify the key attributes of each
relation. Note any unspecified requirements, and make appropriate
assumptions to render the specification complete.
Using your DBMS, build this database and populate it with several entities. (Use your imagination)
Using your DBMS, build this database and populate it with several entities. (Use your imagination)
Using your DBMS, build this database and populate it with several entities. (Use your imagination)
Please help me with the set up SQL. thank you
In: Computer Science
1. Show the red-black tree that result after successively inserting the keys 1, 2, 5, 15, 4, 7, 8, 14, 11 into an initially empty red-black tree.
Show each step whenever you change a node’s color or make a rotation, mark your operations clearly.
In: Computer Science
If your company has effective cost management policies in place, what advantages your company will have over its rivals? Briefly explain (about 200 words in total) three such advantages in your own words.
In: Accounting
In: Statistics and Probability
How (by what way) is each detail drawing connected with the assembly drawing of the design? (keep your answer brief and concise, all lower cases)
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In: Mechanical Engineering
Under the MBCA, what are the steps that should be taken by a shareholder to remove a director? Your paper should address in detail such issues as authority to act, notice, meeting and voting requirements.
In: Accounting
In: Operations Management
1) The Economy cannot be considered fully employed unless the measured unemployment rate is below 1%. Agree or disagree and explain your answer in a paragraph. What is the current actual u-rate for the US economy as of May Data for 2019? Is this unemployment rate below or above or equal to u-rate at full employment (usually called natural rate of unemployment or NAIRU)? 4pts
2) A) Why would you expect the inflation rate to accelerate if the actual unemployment rate declined to a level lower than the "full employment" unemployment rate (NAIRU) and remained at that low level for a year or longer? Explain your answer in a few sentences. 3pts .
B) Draw an AS/AD diagram illustrating your answer to part (A) and refer to the current state of the economy of the US to compare in this context. Be sure to label all lines and axes in your diagram clearly. 3pts
3) Between Q1, 2016 and Q2, 2018 measured Output in the non- farm business sector increased by 3.6%. During this time period the unemployment rate fell from 4.6% to 3.7% and total hours worked in the nonfarm business sector increased by 3.8%. What was the % rate of change in labor productivity over the year? Explain your answer briefly. (Hint: Labor productivity = Y/Labor hours; RGDP growth rate = Labor productivity growth plus and Labor Force Growth rate. No need to use u-rate changes for this question)
In: Economics