Homework Answers
Answer
there are 14 students and only 2 have final average of 90 or above
so, sample proportion p = 2/14
margin of error (E) = 0.03
z value for 95% confidence level is 1.96 (using z table)
sample size n = ((1-p)*p)(z/E)^2
= ((1-(2/14)*(2/14)*(1.96/0.03)^2
= 0.9796*4268.44
= 4181.33
= 4182 (rounded to next integer)
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conducted to determine success rates of students enrolled in the Statistics courses offered at South Plains College for the fall semester of 2015. A random sample of 14 students was taken, and...
conducted to determine success rates of students enrolled in the Statistics courses offered at South Plains College for the fall semester of 2015. A random sample of 14 students was taken, and we recorded each student's age, final average, gender, # hours worked per week, race, and t attended this semester). Use the results from the following table to answer all parts of #2. he attendance record (# of classes not Age 20 18 19 Final Average Gender # Hrs...
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A study was conducted to determine success rates of students enrolled in the Statistics courses o...
A study was conducted to determine success rates of students
enrolled in the Statistics courses offered at South Plains College
for the fall semester of 2015. A random sample of 14 students was
taken, and we recorded each
student’s age, final average, gender, # hours worked per week,
race, and the attendance record (# of classes not attended this
semester). Use the results from the following table to answer all
parts of #2
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if 3 students are randomly selected find the probability that at least one is a male...
if 3 students are randomly selected find the
probability that at least one is a male
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conducted to determine success rates of students enrolled in the Statistics courses offered at South Plains College for the fall semester of 2015. A random sample of 14 students was taken, and we recorded each student's age, final average, gender, # hours worked per week, race, and t attended this semester). Use the results from the following table to answer all parts of #2. he attendance record (# of classes not Age 20 18 19 Final Average Gender # Hrs...
A study was conducted to determine success rates of students
enrolled in the Statistics courses offered at South Plains College
for the fall semester of 2015. A random sample of 14 students was
taken, and we recorded each
student’s age, final average, gender, # hours worked per week,
race, and the attendance record (# of classes not attended this
semester). Use the results from the following table to answer all
parts of #2
f. For the age variable, construct 3...
if 3 students are randomly selected find the
probability that at least one is a male
the fall semester of 2015. A random sample of 14 students was tak al average, gender, # hours worked per week, race, and the attendan ester). Use the results from the following table to answer all partsof Final Average 80 50 Gender # Hrs worked/wk 25 35 40 25 40 95 89 84 76 20 50 32 70 79 82 30 20 Describe the...
Student stress at final exam time comes partly from the
uncertainty of grades and the consequences of those grades. Can
knowledge of a midterm grade be used to predict a final exam grade?
A random sample of 200 BCOM students from recent years was taken
and their percentage grades on assignments, midterm exam, and final
exam were recorded. Let’s examine the ability of midterm and
assignment grades to predict final exam grades.
The data are shown here:
Assignment
Midterm
FinalExam...
Declare and initialize 4 Constants for the
course category weights:
The weight of Homework will be 15%
The weight of Tests will be 35%
The weight of the Mid term will be 20%
The weight of the Fin al will be 30%
Remember to name your Constants according to Java
standards.
Declare a variable to store the input for the number of
homework scores and use a Scanner method to read the value from the
Console.
Declare two variables: one...
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