We wish to test the hypotheses H0: p=0.5 versus H1: p<0.5 at a 1% level of significance. Here, p denotes the fraction of registered voters who supports a proposed tax for road construction. In order to test these hypotheses a random sample of 500 registered voters is obtained. Suppose that 240 voters in the sample  support the proposed tax. Calculate the p-value

Q: We would like to know if more than 43% of Spokane citizens favor an increase in the sales tax. We…

A: Given, The sample proportion is,

Q: In a certain school district, it was observed that 28% of the students in the element schools were…

A: In the school district it has been observed that, 28% of the students in the element school were…

Q: Suppose the dietician conducted his study and found a p-value of 0.085.  Based on this p-value, what…

A: Given :  p -value = 0.085

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A: We have given that  Claim: The proportion of days that the machine has downtime has increased from…

Q: According to theElgin Community College website, approximately 56% of ECC students are female.…

A: Claim:- According to the Elgin Community College website, approximately 56% of ECC students are…

Q: 1. An airline claims that at least 90% of their lost luggage is recovered and delivered to its…

A:

Q: Suppose the manager conducted her study and found a p-value of 0.02.  Based on this p-value, what…

A: Suppose the manager conducted her study and found a p-value of 0.02.

Q: Valid Missing Total 59.9% Freshman Sophomore Junior Senior Total System 96.1% 243 55.9% Class rank…

A: we have to find valid cumulative percentage of students in this sample that are identified as either…

Q: A newsletter publisher believes that 72% of their readers own a Rolls Royce. A testing firm believes…

A: From the provided information, A newsletter publisher believes that 72% of their readers own a Rolls…

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: 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: State the null and alternative hypotheses for the following statement and the type of test being…

A:

Q: In an October 2003 poll conducted by the Gallup organization, 684 of 1006 randomly selected adults…

A: Point estimate:The point estimate of population proportion is sample proportion.

Q: 2010, 4036 of voters in a certain state favored stricter gun control laws. In 2019, a researcher…

A: Given that  Population proportion p=0.48 Test statistic z=2.27 P-value =0.0116

Q: In a random sample of 400 residents, 220 support a 0.3% sales tax increase to build a new high…

A: Here, the null hypothesis is that majority of local residents support the tax increase. The…

Q: The business college computing center wants to determine the proportion of business students who…

A: Given,n=300x=125p^=xnp^=125300=0.41667α=0.01

Q: To determine if people prefer this year's school start time over last year's school start time, WCS…

A: From the above data

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A: Test claim : The majority plan to vote for the bond i.e p &gt; 0.5 Hypothesis : H0 : p = 0.5 H1 : p…

Q: The roads in a particular state are in very poor condition, but the state claims that it does not…

A: 20) The test of homogeneity is used for testing whether the values from two or more groups based on…

Q: A humane society claims that less than 73% of households in a certain country own a pet. In a random…

A: Given,n=500x=355p^=xn=355500=0.71α=0.05

Q: Are the conditions for inference met

A:

Q: You are a process engineer for a company that manufactures widgets. A particular machine at your…

A: It is given that , Sample Size=n=295 Population proportion =P0 =0.234 Q0=1-P0=0.766 Level of…

Q: ppose the CEO of a company states that 90% of it’s customers are very satisfied with it’s services.…

A: Interpretation of P-value: A P-value is the probability of getting a result as or more extreme than…

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A: Solution: Let X be the number of success in  drilling  oil wells.  The probability of  success for…

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Q: After reading an article using research done by the Organization for Economic Co-operation and…

A: The 95% confidence interval for p is (0.25, 0.32).

Q: A humane society claims that less than 73% of households in a certain country own a pet. In a random…

A: Given,sample size(n)=500population proportion (P)=0.73and X=355α=0.05

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A: We have find null and Alternate hypothesis...

Q: 25.1% of days. Conduct a hypothesis test to determine if the proportion of days that the machine has…

A: We have given that  Population proportion, p = 0.301 Sample proportion, p^ = 0.251 Sample size, n =…

Q: In a survey, 33% of the respondents stated that they talk to their pets on the telephone. A…

A: N=150 P0=0.33

Q: The Pew Research Group conducted a poll in which they asked, "Are you in favor of, or opposed to,…

A: The sample estimate for the seculars is the proportion of seculars who favored capital punishment.…

Q: Q1. A random sample of 100 patients treated in a program for alcoholism and drug dependency over the…

A: As per our guidelines we are suppose to answer only one question1)Givensample size(n)=100No. of…

Q: A sample of 522 school teachers, who are married, showed that 221 of them hold a second job to…

A:

Q: An administrator at a rural college claims that the proportion, p, if students who commute father…

A:

Q: A marriage counselor has traditionally seen that the proportion p of all married couples for whom…

A:

Q: In a certain school district, it was observed that 29% of the students in the element schools were…

A: Based on the given information, the hypothesized proportion is 0.29. That is, p=0.29 In this…

Q: Write the null and alternative hypotheses using proper notation? b. What is the value of the test…

A: Given that Sample size n = 500 Sample proportion of market share = 0.125 Level of significance =…

Q: A poll in one country indicated that 48​% favor imposing the death penalty​ (the country currently…

A: Sample Size:The formula for the sample size is as follows:

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A: When the variable of interest is categorical in nature, it indicates that we are dealing with the…

Q: what will the sample proportion (or ) be? Please compute this value below and round your answer to…

A: We have given that  favourable cases, X = 113 Sample size, n = 310 Sample proportion, p^ = X/n

Q: You are management for a chain of department stores. Your analytics team believes that the…

A: Given datayou are a management for a chain of departement stores.Here n=48x=17p=25%

Q: Suppose in a sample of 400 apples  79 are damaged  You want to test the claim the proportion that…

A: Givensample size(n)=400x=79p^=xn=79400=0.1975significance level(α)=0.05