Q5. I recorded the annual salaries of 300 employees of a chain computer stores. The mean and standard deviation are $28,000 and $3,000. If the data show a bell-shaped curve,

a) how many employees receive salaries between $25,000 and $31,000?

Answer: 300 x (            ) = (            ) employees.

b) how many employees receive salaries between 22,000 and 34,000?

Answer: 300 x (            ) = (            ) employees.

c) how many between 37,000 and 19,000?

Answer: 300 x (            ) = (            ) employees.

Q7. I recorded the annual salaries of the employees of a chain computer stores. The mean and standard deviation are $38,000 and $3,000. If the data show a bell-shaped curve, 95% of the employees receive salaries between (           ) and (            ).

Q8. I took the midterm last week and the professor told me only the average score (=80) and the standard deviation (=4). Since there are about 4-5 students who never show up in class, I would assume that the score distribution is NOT bell-shaped. Given that we have 30 students in this class, at least how many students scored between 72 and 88?

Answer: At least 30 x (            ) = At least (            ) firms

A clinical psychology student wanted to determine if there is a significant difference in the Picture Arrangement scores (a subtest of the WAIS-IV that some feel might tap right-brain processing powers) between groups of right- and left-handed college students. The scores were as follows:

12 8

10 10

12 10

14 12

12 11

10 6

8 7

13 9

7 11

a. Is there a significant difference in the Picture Arrangement scores between the right- and left-handed students? Use α = .05 in making your decision. Be sure to state your hypotheses in symbols and use subscripts to denote each group e.g., and to represent the true population mean Picture Arrangement score ???????ℎ?for right- and left-handed students, respectively. Include the following in your response, if necessary – test statistic, degrees of freedom, computations, critical value(s), and conclusion in the context of the problem.

b. What is the 95% confidence interval for the difference between the means?

c. What does it mean if a confidence interval for the true mean difference contains 0? In other words, does this provide evidence that there truly is a mean difference between the two groups or not?

Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score μ μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.4 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 500 . In answering the questions, use z ‑scores rounded to two decimal places. (a) If you choose one student at random, what is the probability that the student's score is between 495 and505 ? Use Table A, or software to calculate your answer. (Enter your answer rounded to four decimal places.) probability: (b) You sample 25 students. What is the standard deviation of the sampling distribution of their average score x¯ ? (Enter your answer rounded to two decimal places.) standard deviation: (c) What is the probability that the mean score of your sample is between 495 and 505 ? (Enter your answer rounded to four decimal places.) probability:

***URGENT*** TEST

1. At one large university, freshmen account for the 40% of the student body, if a group of 15 students is randomly chosen by the school newspaper to comment on textbook prices; what is the probability that at most three of the students are from freshmen? Round your answer to four decimal places (Use Binomial distribution to model this probability)

2.    The Test score in statistics of a class of students has a normal distribution with mean 65 and standard deviation 20. If a student in that class gets

40 marks in statistics, what is the corresponding z-score of the student’s mark. Round your answer to 2 decimal places.

4. Find the following probabilities: (Round your answer to four decimal places)

1. P(Z ≤ -1.5)                   b)   P(Z ≥ 0.25)                 c)   P(- 0.5 ≤ Z   ≤ 0.5) d)   P(Z ≤ -.45   0r Z ≥ 1.15

5. Assume that the distribution of weights of adult males is normal with a mean of 179.8 lbs. and a standard deviation of 45 lbs. Find the probability
    that a randomly selected adult male would have weight less than 170 lbs.   Round your answer to four decimal places.

21. Teaching Methods A new method of teaching reading is being tested
on third grade students. A group of third grade students is taught using
the new curriculum. A control group of third grade students is taught
using the old curriculum. The reading test scores for the two groups are
shown in the back-to-back stem-and-leaf plot.
Old Curriculum New Curriculum

9 3
9 9 4 3
9 8 8 4 3 3 2 1 5 2 4
7 6 4 2 2 1 0 0 6 0 1 1 4 7 7 7 7 7 8 9 9
7 0 1 1 2 3 3 4 9
8 2 4

Key: 9 0 4 0 3 = 49 for old curriculum and 43 for new curriculum
At a = 0.10, is there enough evidence to support the claim that the new
method of teaching reading produces higher reading test scores than the
old method does? Assume the population variances are equal.

ERDQuestion A group of students attend an end of semester party. The party was described by one attendee as‘very exciting’. Students played computer gamestill almost midnight! Each of the students has a name and a Player Name e.g. Fred Smith "The Slayer". Each of the games played has a name and a description. Each console has a unique serial no, name and the year of manufacture. The games can all be played on any ofthe various consolesthat have been broughtto the party. The consoles include: A Dell PC, A Playstation 3 and an X Box 360 When a player finishes a game, a judge recordsthe score obtained by the player and which console the games was played on. Assume that only the best score by a player for a console / game is recorded. a) Dothe following: o Draw theERD ▪ When converted to a relation schema, show all PKs and FKs. b) Assume that we now want to record every score recorded by a player for a console / game. o What changes are required? ▪ At 8pm Scottscore 8630 ptsfor Tetris on the PC. At 8:15 he scored 9100 pointsforthe combination.

This program is to be written in Java Language. Thank you

A College has conducted a student survey. Students were asked to rate their satisfaction with remote learning courses. Students rated their satisfaction on a scale of 1 to 5 (1 = "I hate it", 5 = "I love it"). The student responses have been recorded in a file called "StudentResponses.txt". Each line of the file contains one student response.

Program 1 You are to write a program that reads and analyzes the survey responses. Your program should read the contents of the file and place the responses into an ArrayList. Your program should write a report to a file. The file should contain the number of students who responded to the survey, along with the mean, median, and standard deviation of the responses.

Program 2 Read the file "StudentResponses.txt" and count the number of occurances of the integers from 1 to 5. Use these counters to calculate the mean, median, and standard deviation.

Your program should use functions to calculate the mean, median and standard deviation. Each function should have an ArrayList as a parameter, and should return a double. Each function including the main should have a clearly stated algorithm.

Part (b): Reversing the order of bits in a word

Recall that in our course we define a word to be a 32-bit sequence (i.e., four

consecutive bytes). For some algorithms it is useful to have a reversed version of

that 32-bit sequence. (The deeply curious can read a brief description about such

use in Fast Fourier Transform algorithm implementations by visiting Wikipedia at

this link: http://bit.ly/2rnvwz6 ).

Your task for part (b) is to complete the code in reverse.asm that has been

provided for you. Please read this file for more detail on what is required.

Some test cases are provided to you.

# Compute the reverse of the input bit sequence that must be stored
# in register $8, and the reverse must be in register $15.


.text
start:
        lw $8, testcase3   # STUDENTS MAY MODIFY THE TESTCASE GIVEN IN THIS LINE
        
# STUDENTS MAY MODIFY CODE BELOW
# vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

        nop
        add $15, $0, -10

# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# STUDENTS MAY MODIFY CODE ABOVE

exit:
        add $2, $0, 10
        syscall
        
        

.data

testcase1:
        .word   0x00200020    # reverse is 0x04000400

testcase2:
        .word   0x00300020    # reverse is 0x04000c00
        
testcase3:
        .word   0x1234fedc     # reverse is 0x3b7f2c48

Need to HAVE a web page that uses a loop to allow a teacher to enter the following information for all students in a class: student's name, mt  grade, f  grade, hW grade, attendance grade.

program should calculate each student's numeric total grade based on the following formula:course grade = (mT*0.3)+(f*0.4)+(homework*0.2)+(attendance*0.1)File Table.html looks like this:When the button is clicked, you need to prompt the user the following information:-number of students (which will determine the number of rows in your table)-student's name-mT grade-f grade-homework grade-attendance gradeOnce all the information above is provided, a JavaScript-generated table must be created.

DEFAULT CODE

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>

<head>

<title>Student's Information</title>

</head>

<body>

  <table align ="center" width ="70%">

     <tr>

        <td colspan ="2">

           <h1>&nbsp;</h2>

           <h1>Student's Information</h1>

           <p><input type="button" id="students" value="Enter Data" /></p>

        </td>

     </tr>

  </table>

</body>

</html>

write an algorithm and python program using the following information. also can y

How much should I study outside of class?

            Issue:

Your fellow students need help. This is their first year in college and they need to determine how many hours they need to study to get good grades.

Study Hours Per Week Per Class                    Grade

15                                                           A

12                                                           B

9                                                             C

6                                                             D

0                                                             F

Project Specifications:

1. The user enters their full name and the number of credits they are taking.
2. The user will then enter the grade they want assuming the same grade for all classes.
3. The program displays for each student: student’s name, number of credits, total number of weekly study hours, and grade they should expect to receive. In the following format –

Name: FirstName LastName

Credits: 12

Study Hours: 60

Grade: A

4. At the end of the program, the program displays the total number of students who used the program, the average credits taken, and the average study hours. In the following format –

Total Students: 3

Average Credits: 9

Average Study Hours: 20

ou please run the program?