In a previous year, 52% of females aged 15 and older lived alone. A sociologist tests whether this percentage is different today by conducting a random sample of 750 females aged 15 and older and finds that 393 are living alone. Is there sufficient evidence at the a = 0.1 level of significance to conclude the proportion has changed?

Q: Some of the answer is incorrect, i need help

A: From the given information In the bookshelfNumber of math books = 7Number of novels = 9Number of…

Q: Learning Target 1: Patterns and Units. I can find patterns in nature and use them to predict future…

A:

Q: 1. A crucial part of managing the spread of Covid-19 is testing people to see if they are infected…

A: a. The average infection rate can be calculated by dividing the confirmed cases of COVID-19…

Q: Please write the answer on a sheet of paper, the typing doesn't work for me, I can't see anything,…

A:

Q: Working is needed for this question.

A: Fact :- Two regions are adjacent if they share a common border.

Q: Can you help me on #29.

A: Given:

Q: Could you please write it on paper? Bartleby seems having a problem that it can't display the answer…

A: Given problem:- tan-1cot19π14

Q: please make more detailed answer to this question

A:

Q: Graph. y = - x² + 2x - 8 Use the graphing tool to graph the equation. Click to enlarge graph

A: Hello! Thank you for the question. We'll able to solve only one question as per our honor code.

Q: Please answer the other questions here (#2 and #3). Please confirm the answers. Thank you.

A: 1st answer is correct, given in the tutor solution. Because here (cosh y) is constant.  3rd option…

Q: Thank you, but could you please write your answer on a sheet of paper? I'm having trouble following…

A:

Q: Solve the initial value problem dy 3x2 + 4x + 2 y(0) = –1. dx 2(у — 1) ||

A:

Q: can you do the next part of the question please

A: In order to  estimate the parameters, we need to calculate the sample mean and sample variance of…

Q: 1. Let (x) = x2 + 2. Then (*+h)-f(x) A) 2x + h 2xh+ h2+4 C) B) 1 D) None of the above

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Find (i) the characteristic equation and (ii) the eigenvalues and corresponding - 3 5 eigenvectors…

A: Since you have posted multiple questions, we answered the first question for you. If you want any…

Q: Let X be the discrete random variable with the probability function f (x) = kx³ + 0.15 %3D for x =…

A:

Q: The second and last question need to be answered

A: The sample size of companies, The sample mean, The standard deviation, The significance level, The…

Q: Please give answers in step by step

A: Step 1: Analyze the problem. Step 2: Check if there's lacking. Step 3: Give a suggestion

Q: 14. For f(x) = x' – 6x² +9x , identify the critical points and inflection points A) Critical Points:…

A: Dear student, Since you have posted two questions, as per our policy we will answer first question.…

Q: I have a question regarding the question B. Can you please help me? Thanks

A: To use normal approximation, the following conditions should be satisfied. np>5 and n(1-p)>5

Q: e question 3-8 please, show all of your work, thank you.

A: Given data:   California New York Texas Total Interested 84 76 (a) (c) Not Interested 189 213…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.