I recent survey of people in Littletown asked whether they wanted their tax dollars to pay for a new city park.  512 out of 873 said that they are in favor of it.  The mayor claimed that over 55% of people in the town were in favor of it.  At a 0.02 significance level, find the P-value and the decision for the null hypothesis.

Q: If you use a 0.05 level of significance in a​ two-tail hypothesis​ test, what decision will you make…

A:

Q: A statistics student believes that black cars are less likely to receive tickets for moving…

A: It is given that the P-value is 0.24.

Q: ordered dessert. In a sample of 78 men, 31 ordered dessert. Test the claim using a significance…

A: Given that  Sample sizes n1=102 , n2=78 Favorable cases x1=61 , x2=31

Q: Research done in 2013 found that only 48% of all the site users reported getting their news about…

A: The question is about hypothesis testing and confidence interval.Given :Population proportion of all…

Q: 2. A decade-old study found that the proportion, p, of high school seniors who believed that…

A: Given that,possible chances (x)=165sample size(n)=240success rate ( p )= x/n = 0.6875success…

Q: In a recent court case it was found that during a period of 11 years 856 people were selected for…

A: From the provided information, Sample size (n) = 856 Sample proportion (p̂) = 0.38 Level of…

Q: One study claimed that 86% of college students identify themselves as procrastinators. A professor…

A:

Q: Corona virus has affected different states differently in the U.S. In New York out of 142 ICU…

A: State the hypotheses.   Let p1 denotes the population proportion of deaths among ICU patients in the…

Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is…

A:

Q: Ride services are on the rise, such as Uber and Lyft. You wondered if the recent news reports of…

A: Given  19 males use ride services and 11 do not. 12 females use ride services and 18 do not.

Q: car company believes that the percentage of residents in city ABC that owns a vehicle is 60% or…

A: Given information- Population proportion, p = 0.60 Sample size, n = 250 Significance level, α = 0.1…

Q: a marketing team think their new ads are better than the prior ones. They used to be able to sell to…

A: The single proportion binomial test is used to compare a proportion of responses or values in a…

Q: Suppose a researcher wants to estimate the population proportion of defective light bulbs. He took a…

A: From the provided information, Population proportion (p) = 0.07 The hypotheses can be constructed…

Q: A new study shows that 35% of adults have never been married. To test if that is a true claim, we…

A: Given: n= 250.0 ,x= 97.0 p= 0.35 ,significance level(∝)= 0.05p̂= 97.0 / 250.0 =0.388

Q: A car leasing firm's records indicate that the mean number of miles driven annually in its cars has…

A: GivenA car leasing firm's records indicate that the mean number of miles driven annually in its cars…

Q: According to the most recent General Social Survey, 70% of adults watch TV nightly. A researcher…

A:

Q: State your decision to the significance test in terms of the null hypothesis. Consumer data reports…

A:

Q: A hospital claims that at least 83% of their craniectomies are successful. A doctor of the hospital…

A: Given: p=0.83 Hypothesis: The null hypothesis is given below: H0: p≥0.83 The alternate hypothesis is…

Q: One study claimed that 86 % of college students identify themselves as procrastinators. A professor…

A: Answer Sample size [n] =139favorable cases [x] =110

Q: A medical research team conducted a study to test the effect of a migraine drug. Of the 400 subjects…

A:

Q: n February 2008, an organization surveyed 1040 adults age 18 and older and found that 539 believe…

A: State the hypotheses.

Q: State your decision to the significance test in terms of the null hypothesis.According to a recent…

A: The given test claims that the percentage of people in New York who would vote for the incumbent…

Q: An exercise science student believes that during professional rugby games the average distance…

A: Provided that : When reviewing game statistics the student found that the average distance covered…

Q: Q3: A bank will open a new branch in a particular neighborhood if it can be reasonably sure that at…

A:

Q: A newsletter publisher believes that less than 36%36% of their readers own a laptop. For marketing…

A: The objective of the question is to interpret the results of a hypothesis test and draw a conclusion…

Q: A manufacturer claims him market share is 60%. However a random sample of 500 clients show that only…

A: X=275, n=500, p=60%, level of signicance=1%

Q: 28% of students at a university bought lunch from the cafeteria on class days. On a recent class…

A: Givenp=28%=0.28sample size(n)=486No. of students had bought lunch(x)=149p^=xn=149486p^=0.3066

Q: After Halloween, your statistics instructor wanted to find out if there was a significantly…

A: Data given 40,52,55,45,48,45,50,60 n=8

Q: A business student claims that the choice of flight class is independent of a persons education…

A: Answer  Given  [O]            Y1           Y2               Y3            Total X1            68…

Q: A recent study at a local college claimed that the porportion, p, of students  who commute more than…

A: Denote p as the true proportion of the students  who commute more than 15 miles to school. The null…

Q: A researcher is interested in determining whether there is a difference in male college students and…

A: Given, No. of female students surveyed (n1) =82 No. of female students who preferred online classes…

Q: In 2005, Health Canada claimed that 16.9% of Canadian adults are obese. A researcher wanted to check…

A: From  the given information,   α=0.07

Q: adults whether they believed that people should pay sales tax on items purchased over the internet.…

A: Let n denote the number of U.S. adults whether they believed that people should pay sales tax on…

Q: A random sample of 200 students is taken at the University of Ottawa in order to determine the true…

A: Given that  Sample size n =200 Favorable cases x =130 Sample proportion p^=x/n  =130/200 =0.65

Q: A new shampoo is being test-marketed. A large number of 16 ounce bottles were mailed out at random…

A:

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.