an airline promotion to business travelers is based on the assumption that two-thirds ofbusiness travelers use a laptop computer on overnight business trips.a. State the hypotheses that can be used to test the assumption.b. what is the sample proportion from an american express sponsored survey thatfound 355 of 546 business travelers use a laptop computer on overnight businesstrips?c. what is the p-value?d. use a = .05. what is your conclusion?

Q: Determine whether the survey question is Biased (B) or Unbiased (U). If the question is biased,…

A: A survey question is said to be biased if it is phrased or formatted in a way that tends people…

Q: Chatterbug, a social networking site on the Internet, would like to determine if gender is related…

A: Here we are given that Chatter bug a social networking site on the internet would like to determine…

Q: (b) What is the minimum sample size needed using a prior study that found that 44% of the…

A: It is given that margin of error (E) is 0.03 and the confidence level is 0.95.

Q: If a hurricane was headed your way, would you evacuate? The headline of a press release states,…

A: Sample size = n = 4625 Sample proportion = p̂ = 0.32

Q: (d) Write down the name of the sampling method for the following cases: (di) A fair representative…

A: Hello thankyou for the question. As you asked only answering two parts in part d of the question.

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: Let us consider the number of police as independent variable and the number of crimes reported as…

Q: 3. The Humane Society would like to conduct a telephone survey in a small town with a population of…

A:

Q: c) If the sample size were 100 instead, how would your limits and conclusions change? UCL (enter…

A:

Q: Identify the type of sampling technique used by the researcher in each of the following situations.…

A: We have given the following statement about the sampling  technique.

Q: Suppose that your sample size was 37, what is P(t<-1.74) (Negative 1.74)?

A: Given information- Sample size, n = 37 t-score = -1.74 We have to find the p (t&lt;-1.74). Degree of…

Q: To find out how Seattle restaurant patrons feel about ban on smoking inside/public places, a…

A: Undercoerage is a type of sampling bias that occurs when the significant population units are not…

Q: The city council of Pine Bluffs Is considering Increasing the number of police In an effort to…

A: For the given data Find the required blanks

Q: a). At 5% level of significance, is there evidence to support the board’s intention? Your conclusion…

A: The provided information is n1=150 , n2=225x1=93, x2=126α=0.05 The hypothesis are Ho:p1=p2H1:p1≠p2…

Q: For a survey of 700 people in which 48% show support for an upcoming vote on a proposed…

A:

Q: When Rich calculated the sample mean in Part 2, he mistakenly used the numbers 20, 25, 13, 9, 15,…

A: Given numbers are 20, 25, 13, 9, 15, 11, 17, 17, 30 Sample mean = Total sum of given numbersTotal of…

Q: In 2007 the New York Times reported that the median annual household income in the UnitedStates was…

A: Note: Hey, since multiple sub parts are posted, we will answer first three sub parts according to…

Q: The U.S. Census Bureau reported in 2002 that, for people 18-24 years old, the mean annual income for…

A: Given that ; For never married ; n1 = 100 Mean ( M1 )  = $ 21.539 For married couple : n2 = 100 Mean…

Q: Find the 95% confidence interval about the population mean

A: The descriptive analysis is conducted using EXCEL. The software procedure is given below: Enter the…

Q: Determine the regression equation. (Negative values should be indicated by a minus sign. Round your…

A: Police (X) Crimes (Y) (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 19 16 -2.25 5.0625…

Q: At the Fredericton High School it is estimated that at most 25% of the students ride bikes to…

A: Let, p = proportion of students who ride bikes to school

Q: In hypothesis testing, what is the level of significance?

A:

Q: A politician wants to know what percentage of the voters who support her. What sample size should be…

A: We have given that,  Confidence level = 95% = 0.95 and margin of error (E) = 4% = 0.05 Then,  We…

Q: # 2. The manager of Apple Green Golf wishes to study the number of rounds of golf played per week…

A: The manager of Apple Green Golf wishes to study the number of rounds of golf played per week day. He…

Q: As a manufacturer of golf equipment, the Spalding Corporation wants to estimate the proportion of…

A: From the provided information, Margin of error (E) = 0.025 Confidence level = 99% Assuming the…

Q: According to one study, 40% of online orders will experience a shipping delay. A second study wants…

A: Given P-cap=0.40 Margin of error=0.01 Alpha =0.05

Q: Why doesn't it make sense to test the hypothesis that the sample mean is 42?

A: It is given that the hypothesis test is sample mean is 42.

Q: A geography student in Parkville, Missouri is conducting a housing survey, including questions about…

A: It is given that she knows that about 38% of the people in Parkville live in apartments, and wants…

Q: What is a sampling distribution of means? Use your knowledge of the standard error of the sample…

A:

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: The Excel procedure to obtain the regression equation. Software procedure: Step by step procedure to…

Q: If the sample portion is 0.448 What is the margin of error for the 95% Confidencelevel? 0.95 = 1.960…

A: Given that  Sample size n =1000 Favorable cases x =448 Sample proportion p^=x/n  =448/1000 =0.448

Q: Which kind of sampling plan was used in each of the following situation? Would the plan result in an…

A: Given problem is : Which kind of sampling plan was used in each of the following situation? Would…

Q: During the first 13 weeks of the television season, the Saturday evening 8 p.m. to 9 p.m. audience…

A: Define that pi’s are the proportion of the audiences for ABC, CBS, NBC and independents,…

Q: a) What proportion of workers answered yes to the survey? b) What was the margin of error?

A: Here, the 95% confidence interval for the proportion of workers that answered 'yes' is (0.62, 0.73).…

Q: The city council of Pine Bluffs is considering Increasing the number of police in an effort to…

A:

Q: In how many different ways can the 4 shoe samples be formed from the data above? b. What is the…

A:

Q: a radio talk show host asked listeners to respond either yes or no to the question,  is the…

A: Population: Population consists of the complete subjects or individuals of interest that are…

Q: What is the p-value for a sample of  100 undergraduate students with a sample mean credit card…

A:

Q: 1. Come up with a sampling plan to find the proportion of dots that are red, and also an estimate of…

A: Given: A square of side 1 with numerous red and black dots

Q: In 2007 the New York Times reported that the median annual household income in the UnitedStates was…

A:

Q: Which kind of sampling plan was used in each of the following situation? Would the plan result in an…

A: There are many sampling methods to select the sample from the population.  The samples need to be…

Q: Which of the following survey questions would NOT show bias? Select one: O a. Don't you agree that…

A: Introduction: It is required to identify the questions that would not show bias.

Q: In an AOL survey of Internet​ users, this question was posted​ online: "Have you ever been hit by a…

A: Given: The question posted online is: Have you ever been hit by a computer​ virus? Among the​…

Q: A real estate agent believes that the mean home price in the northern part of a county is higher…

A: Given: The number of observations from the Northern part of the country is 18. The number of…

Q: Suppose it is reported that 73 % of people subscribe to a cable or satellite televisia service. You…

A: p^ ~ N(μp^ , σp^ ) =========================

Q: 2.9   Time magazine, in an article in the late 1950s, stated that “the average Yaleman, class of…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Define a test procedure, based on sample data, for deciding whether to reject H0?

A: Explanation: t-test for population mean:

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: From the provided information, City Police Number of crimes Oxford 15 19…

Q: In order to assess the opinion of students at De Anza College, a reporter for the student newspaper…

A: 11. Population is the entire set of objects or subjects to be covered for the study. Here, the…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.