Construct a BCH (7,4) code with the generator matrix G(p)=p3 +p+1. (Draw the structure of the encoder )
In: Math
In: Math
Conduct an Internet search to find a study whose statistical results have been published in the news or any other public forum. Applying the following guidelines, critically analyze the study’s reported content and results.
Identify the goal, population, and type of study.
Who conducted the study? Is there bias here?
Is there bias in the sample used in the study?
Are there any problems in defining or measuring the variables of interest in the study?
Are there any confounding variables present in the study?
Are the results presented fairly?
Is the study’s conclusion reasonable? Does it make sense?
Do the results make practical significance?
In: Math
Nuclear physicist found the probability of neutral particles being reflected was 0.16 and of being absorbed as 0.84.
a. What is the expected number of particles that would be reflected if 1,000 are released?
b. Assuming the normal approximations to the binomial distribution, what is the probability that 140 or fewer particles would be absorbed?
In: Math
PLEASE ANSWER THE THREE QUESTION WITH CORRCT DEATILAS
Who may request a copy of a birth and death certificate?
If the mother is not married, can the father’s name be placed on the birth certificate?
What does father need to sign in order to be placed on birth certificate of unwed mother?
In: Math
A healthcare provider monitors the number of CAT scans
performed each month in each of
its clinics. The most recent year of data for a particular clinics
follows (the reported variable is the
number of CAT scans each month expressed as the number of CAT scans
per thousand members of the
health plan):
2.31, 2.09, 2.36, 1.95, 1.98, 2.25, 2.16, 2.07, 1.88, 1.94, 1.97,
2.02.
Find a two-sided 95% confidence interval for the standard
deviation.
In: Math
A nutritionist is interested in the relationship between
cholesterol and diet. The nutritionist developed a non-vegetarian
and vegetarian diet to reduce cholesterol levels. The nutritionist
then obtained a sample of clients for which half are told to eat
the new non-vegetarian diet and the other half to eat the
vegetarian diet for five months. The nutritionist hypothesizes that
the non-vegetarian diet will increase cholesterol levels more. What
can the nutritionist conclude with α = 0.05. Below are the
cholesterol levels of all the participants after five
months.
non- vegetarian |
vegetarian |
---|---|
106 121 141 146 156 196 106 106 |
126 171 196 108 231 256 131 196 |
If appropriate, compute the CI. If not appropriate, input "na"
for both spaces below.
[ , ]
e) Compute the corresponding effect size(s) and
indicate magnitude(s).
If not appropriate, input and/or select "na" below.
d = ; ---Select--- na trivial
effect small effect medium effect large effect
r2 = ; ---Select---
na trivial effect small effect medium effect large effect
In: Math
In 2014, a group of students was interested in investigating prices of rental accommodation in suburbs of Brisbane that are close to the CBD and collected information on a total of 200 randomly chosen dwellings in four inner western suburbs. A subset of this data, relating to rental apartments in these suburbs is included below. The variables are:
Per week: weekly rental price for the apartment ($);
Bedrooms: number of bedrooms in the apartment;
Sqm: size of the apartment (m2)
Furnished: whether the apartment was furnished or not (yes/no).
The values are;
265,2,59,No
305,2,70,No
300,1,72,No
320,3,66,No
340,2,113,Yes
330,2,58,Yes
355,2,63,No
345,2,57,Yes
355,2,61,No
360,2,114,Yes
355,2,75,Yes
360,2,68,No
365,2,64,No
370,1,69,No
390,2,73,Yes
380,2,85,Yes
390,2,56,Yes
370,2,56,Yes
385,2,59,Yes
380,2,65,Yes
385,2,62,Yes
400,2,65,No
415,2,69,Yes
400,3,63,No
405,3,70,No
420,2,77,No
435,2,84,Yes
435,2,83,Yes
455,2,73,Yes
450,2,72,Yes
485,2,68,No
500,2,76,Yes
535,2,97,No
290,1,60,No
305,1,63,Yes
330,2,65,No
310,2,70,No
335,2,64,No
330,2,62,No
345,2,79,No
355,1,81,No
340,2,66,No
345,1,60,No
345,2,64,No
355,2,73,No
385,2,61,No
380,2,78,No
405,2,81,No
410,2,76,Yes
430,2,80,No
440,2,61,No
450,3,86,No
485,3,91,No
500,1,87,No
545,1,97,Yes
345,3,86,No
400,2,72,No
400,2,74,No
480,2,73,Yes
755,3,87,No
760,3,77,No
770,3,113,No
824,2,109,No
860,3,104,No
295,1,70,No
290,1,54,No
295,1,61,No
325,1,61,No
340,2,56,No
355,2,61,No
365,2,95,No
420,1,75,No
420,2,66,No
440,2,74,No
480,3,72,No
465,3,87,No
470,1,87,Yes
490,1,81,Yes
495,2,76,No
505,2,97,No
530,2,77,No
545,2,97,No
560,2,79,No
550,2,78,No
560,3,75,No
565,1,96,Yes
580,2,85,Yes
605,3,84,No
605,2,93,Yes
610,2,78,Yes
620,2,87,No
665,2,88,No
700,2,80,No
750,3,97,Yes
740,3,124,No
805,3,101,No
860,3,98,No
960,3,123,Yes
990,3,102,Yes
1195,3,133,No
1190,3,137,No
1405,3,148,Yes
1490,3,154,No
Question 3)
The students were interested in the proportion of rental apartments in these suburbs that were leased as furnished apartments, and whether this varied with the number of bedrooms in these apartments. To investigate further whether the proportions of furnished apartments differ between apartments with different numbers of bedrooms, it is useful to test formally whether the number of bedrooms in an apartment and whether it is furnished or not are independent.
a) Test whether the number of bedrooms in an apartment and whether it is furnished or not is independent.
b) State the null hypothesis, the relevant form of the test statistic and the approximate distribution of the test statistic for carrying out this text.
c) Perform a hypothesis test with using α = 0.05, of whether the proportions of furnished apartments vary across number of bedrooms, that is, whether the furnishing status of an apartment is independent of the number of bedrooms in the apartment.
Include the Following:
i) The table of expected frequencies
ii) The observed value of the test statistic
iii) The relevant degrees of freedom for the distribution of the test statistic
IV) The resulting p-value for the test, or a rejection region
Conclude the test by interpreting the p-value (or rejection region and your observed test statistic) in terms of the original question discussed above
Pls do this question with R code !!!!
In: Math
During the independent research 30 women were chosen
to measure their weight. The
mean value of weight is 66 kg and it is known from the previous
experience that the weight is normally
distributed with ? = 10 kg.
a) Find a 95% two-sided confidence interval on the mean weight.
b) Find a 90% two-sided confidence interval on the mean weight.
c) Which interval is wider?
In: Math
Describe how to write the null and alternative hypotheses based on a claim. Provide at least one example to clarify your explanation.
In: Math
(I need your Reference URL LINK, please)
( i need Unique answer, don't copy and paste, please) (dont' use handwriting, please)
Q1. Define the following terms:
A. Contingency table (Introduction to
Biostatistics)
B. Chi-square test (Introduction to
Biostatistics)
Q2. List the assumptions required to perform a chi-square test?
(Introduction to Biostatistics)
( i need Unique answer, don't copy and paste, please) (dont' use handwriting, please)
In: Math
Applying statistical analysis skills to real-world decision making is key in modern business and it can make a company to be ahead competitively. Even in today’s workplace, you can have an immediate competitive edge over other new employees, and even those with more experience, by applying statistical analysis skills. Chose any company that you have observed that it is not utilizing its data as your case study. Do some background research on the company? Write an essay (report) outlining some statistical data analysis that the company can use in its decision making. Relate how data analysis can be attained by using built-in R-programming packages or functions.
In: Math
Prove that if two of the opposite sides of a quadrilateral are respectively the greatest and the least sides of the quadrilateral, then the angles adjacent to the least are greater than their opposite angles
In: Math
2017-2018 Goals |
49 |
44 |
43 |
42 |
42 |
41 |
40 |
40 |
39 |
39 |
39 |
37 |
36 |
36 |
35 |
35 |
34 |
34 |
34 |
34 |
2012-2013 Goals |
32 |
29 |
28 |
26 |
23 |
23 |
23 |
22 |
22 |
21 |
21 |
21 |
20 |
20 |
20 |
19 |
19 |
18 |
18 |
18 |
2007-2008 Goals |
65 |
52 |
50 |
47 |
43 |
43 |
42 |
41 |
40 |
40 |
38 |
38 |
36 |
36 |
35 |
34 |
34 |
33 |
33 |
32 |
Given the above three sets of data, we want to compare the three seasons using the ANOVA. Answer the following questions:
1. Using proper notation, write the null and alternative hypothesis statements.
2. In the context of the problem posed, interpret the results of the test and make a conclusion about the hypotheses.
****You must be provide concise explanations in your solutions in order to receive credit****
In: Math
Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering a question chosen at random from a universe of possible questions. (A strong student has a higher p than a weak student.) The correctness of answers to different questions are independent. Jodi is a good student for whom p = 0.8.
(a) Use the Normal approximation to find the probability that Jodi scores 74% or lower on a 100-question test. (Round your answer to four decimal places.)
(b) If the test contains 250 questions, what is the probability that Jodi will score 74% or lower? (Use the normal approximation. Round your answer to four decimal places.)
(c) How many questions must the test contain in order to reduce the standard deviation of Jodi's proportion of correct answers to half its value for a 100-item test?
In: Math