A study in 2014 indicated that 19% of American households have a landline telephone that they do not intend to disconnect. In a random sample of 581 American households, how many would we expect to have a landline telephone they do not plan to get rid of? Round your answer to one decimal place.

Q: A charity holds a raffle in which each ticket is sold for $45. A total of 9600 tickets are sold.…

A: We have the following information: Each ticket sold for $45. Total no. of ticket sold = 9600. The…

Q: Approximately 76% of statistics students complete their homework before the due date. Each student…

A: Approximately 76% of statistics students complete their homework before the due date.i.e.…

Q: Use the answer in item 4 to fill in the blanks. In the UK, if you are you are times more likely to…

A: Absolute risk is also known as risk difference. It helps to measure the chance of occurrence of…

Q: In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: Let A be the event that student had Math SAT of 700 or more Therefore, PA=0.36 find The probability…

Q: Construct a stem and leaf display, given the following data from a sample of midterm exam scores in…

A: Given that The data are 54, 63, 91, 72, 95, 55, 56, 89, 78

Q: Suppose that X and Y have a joint probability density function given by ce-3z-5y fxy(x, y) = if x, y…

A:

Q: Sex Mean hemoglobin level SD of hemoglobin level Population 1: Men 14.4 2 Population 2: Women 13.1…

A: We have given that the two populations men and women means and standard deviations are given in the…

Q: If you have a study in which 50 participants are randomly assigned to one of the three groups, the…

A: Given  k=3,b=50 We want to find dfwithin

Q: You have 10 women who are pregnant. They all took a home pregnancy test that claims to accurately…

A: we will find the required.

Q: Future scientists: Education professionals refer to science, technology, engineering, and…

A: Sample size=n=140=P=0.28=0.0379

Q: A student takes a 20-question multiple-choice test with 4 choices for each question. If the student…

A: The sample size n is 20.

Q: Consider a computer test to indicate if you like Math 123 or dislike Math 123. If positive, you like…

A: Given information: P(Like) = 0.80 P(Dislike) = 0.20 PPositiveLike=0.855 PNegativeDislike=0.855…

Q: The mode score on a statistics exam was 83. Which of these interpretations is correct? A.More…

A: Given information Mode score on a statistics exam = 83 Mode = The number having highest frequency is…

Q: A film distribution manager calculates that 8 % of the films released are flops. If the manager is…

A: Where,

Q: On a multiple choice test with 25 questions, each question has four possible answen is correct. For…

A: We have to find mean  of correct answerfor given data ...

Q: A student takes a 20-question multiple-choice test with 4 choices for each question. If the student…

A: The sample size n is 20.

Q: A survey asked 3494 randomly selected high school seniors about their computer use. Among the 1,734…

A: We have given that,  Favorable cases (males use computers for three or more hours a day) = (X) = 677…

Q: Forty four rats were trained to run a maze. The following frequency histogram presents the number of…

A: Given:The height of each bar corresponds to how many rats took that many trials to learn the maze.…

Q: A fair coin is tossed 30 times.  How likely are you to see exactly 15 heads?  Round to four decimal…

A: given data, a fair coin is tossed 30 times n=30…

Q: Is there anything wrong with the statement? An airline company advertises that 100% of their…

A:

Q: Describe the unethical behavior in each example and describe how it could impact the reliability of…

A:

Q: A survey showed that 36% of human resource professionals are at companies that rejected job…

A: X~Bin(n=27, p=0.36) P(X>=16)= ?

Q: In fall 2014, 36% of applicants with a Math SAT of 700 or more were admitted by a certain…

A:

Q: believe that the movie “hellboys” was so bad that I actually became less intelligent after watching…

A: Consider μd is the mean value of the differences of the pre and post treatment score.

Q: 100 people with three different college majors were asked which social media site they prefer. Is…

A: Here 100 people with three different college majors were asked which social media site they prefer.…

Q: The mean of 11 numbers is 30. One of the numbers, 12, is deleted. What is the mean of the remaining…

A:

Q: 6. Five hundred college graduates were asked how much they donate to their alma mater on an annual…

A: Mode: Mode may be defined as the maximum number of observation

Q: Jll asked some randomly selected students whether they preferred blue, green, or other colors. She…

A: The two-way frequency table is,    Preferred color       Gender Green  Blue Other Total Girl…

Q: According to “common knowledge”, 50% of marriages end in divorce. You think this “common knowledge”…

A: Alternate Hypothesis : It is used in hypothesis test to contradict the null hypothesis. It usually…

Q: Recently, a nurse commented that when a patient calls the medical advice line claiming to have the…

A: Given : p = 0.04 n = 25

Q: If m is the average (arithmetic mean) of the first 10 positive multiples of 5 and if M is the median…

A: The objective of the question is to find the difference between the median and the mean of the first…

Q: The national institute of mental health reports a 22% chance of an adult suffering from a…

A: Answer: From the given data, Sample size(n) = 8 P = 22% = 0.22

Q: A survey showed that 37% of human resource professionals are at companies that rejected job…

A:

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A:

Q: Michael has the following data: 107 104 106 104 106 112 109 105 113 109 105 If the mean is 107,…

A:

Q: A service station owner believes that equal numbers of customers prefer to buy gasoline on every day…

A: It is needed to test the whether the number of customers who prefers to buy gasoline on each day of…

Q: A population has a mean of 377 and a mode of 333.  If 17 points are added to each, which is a true…

A: It is given that the mean is 377 and mode is 333. Also, 17 points are added to each.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.