Layla is working on a PhD in computer science and wonders what the average page ner field. She takes a random sample of 80 computer science dissertations and notices that the distrībution of cheir page lengths is skewed to the right with high outliers and a sample mean of = 125.4 pages. She's considering using her data to make a confidence interval for the mean page length of computer science dissertations. Which conditions for constructingatinterval have been met? Choose all answers that apply: The data is a random sample from the population of interest. The sampling distribution of I is approximately normal. Individual observations can be considered independent.

Layla is working on a PhD in computer science and wonders what the average page ner field. She takes a random sample of 80 computer science dissertations and notices that the distrībution of cheir page lengths is skewed to the right with high outliers and a sample mean of = 125.4 pages. She's considering using her data to make a confidence interval for the mean page length of computer science dissertations. Which conditions for constructingatinterval have been met? Choose all answers that apply: The data is a random sample from the population of interest. The sampling distribution of I is approximately normal. Individual observations can be considered independent.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question 03 Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line
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All businesses want to keep their customers happy. To do that, many companies assign a certain amount of time to each customer to optimize the business. The alternative would be to hire more employees, which would lead to higher costs. This problem requires you to simulate how authorities optimize the number of cashiers at the entrance of a toll bridge to make sure drivers are satisfied. Make the following assumptions: There is one cashier per line. The line works as a queue with no cars cutting the line or leaving it. One car arrives at the entrance every 10 seconds. It takes 90 seconds (1.5 minutes) to process the payment, starting from the moment a cashier is available. Assume there is no pause between cars. Written in java, Your Tasks: Design class CarInLine, with the following specifications: The class has two instance variables: arrivalTime and DepartureTime, stored as integers. Define a constructor that accepts an integer as an argument representing the arrival time, in…
Correct answer will be upvoted else downvoted. Nastia has a concealed change p of length n comprising of integers from 1 to n. You, for reasons unknown, need to sort out the change. To do that, you can give her an integer t (1≤t≤2), two unique records I and j (1≤i,j≤n, i≠j), and an integer x (1≤x≤n−1). Contingent upon t, she will reply: t=1: max(min(x,pi),min(x+1,pj)); t=2: min(max(x,pi),max(x+1,pj)). You can ask Nastia at most ⌊3⋅n2⌋+30 times. It is ensured that she won't change her stage contingent upon your questions. Would you be able to figure the change? Input The input comprises of a few experiments. First and foremost, you get the integer T (1≤T≤10000) — the number of experiments. Toward the start of each experiment, you get an integer n (3≤n≤104) — the length of the change p. It's reliable that the change is fixed ahead of time and that the amount of n in one test doesn't surpass 2⋅104. Connection To pose an inquiry, print "? t I j x" (t=1…
Correct answer Will be upvoted else downvoted. subsquare is any square piece of the stand, I. e. any set S(i0,j0,k)={ci,j | i0≤i<i0+k,j0≤j<j0+k}S(i0,j0,k)={ci,j | i0≤i<i0+k,j0≤j<j0+k} with 1≤i0,j0≤n−k+11≤i0,j0≤n−k+1. Kostya actually doesn't have the foggiest idea the number of tiles he wants, so he considers the subsquares of every conceivable size. He doesn't need his restroom to be excessively bright. Assist Kostya with counting for each k≤nk≤n the quantity of subsquares of size k×kk×k that have all things considered qq various shades of tiles. Two subsquares are considered unique if their area on the stand is unique. Input The main line contains two integers nn and qq (1≤n≤15001≤n≤1500, 1≤q≤101≤q≤10) — the size of the stand and the cutoff on the quantity of particular tones in a subsquare. Each of the following nn lines contains nn integers ci,jci,j (1≤ci,j≤n21≤ci,j≤n2): the jj-th integer in the ii-th line is the shade of the tile in the cell (i,j)(i,j).…
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