A humane society claims that less than 65% of households in a certain country own a pet. In a random sample of 500 households Complete parts (a) through (c) below. that country, 310 say they own a pet. At a = 0.10, is there enough evidence to support the society's claim? (a) Identify the claim and state H, and H Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) OA % of households in the country own a pet. O B. The percentage households in the country that own a pet is not %. OC. More than % of households in the country own a pet. O D. Less than % of households in the country own a pet.

Q: A research center claims that at least 28% of adults in a certain country think that their taxes…

A: From the provided information, Population proportion (p) = 0.28 a) The hypotheses can be constructed…

Q: A research center claims that at least 24% of adults in a certain country think that their taxes…

A:

Q: A medical researcher says that less than 72% of adults in a certain country think that healthy…

A: Given: H0:p≥0.72Z0 = 2.33p = 72% = 0.72p^= 70% = 0.70 Sample size (n) = 300Find the test statistic?

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: Statistical tests are used to calculate the test statistics which is eventually used to determine…

Q: A research center claims that at least 31% of adults in a certain country think that their taxes…

A:

Q: In a survey, 31% of the respondents stated that they talk to their pets on the telephone. A…

A: Given that n =150 ,p = 0.31

Q: In a survey, 36% of the respondents stated that they talk to their pets on the telephone. A…

A:

Q: According to a 2001 Reader's Digest article, S0% of physicians over the age of 55 have been sued at…

A:

Q: A business journal investigation of the performance and timing of corporate acquisitions discovered…

A:

Q: A research center claims that at least 30% of adults in a certain country think that their taxes…

A: Given, n = 1000 p^=0.26 α = 0.01

Q: In a sample of 49 men, 38 said that they had less leisure time today than they had 10 years ago. In…

A: The claim is that there is a difference in the proportions.

Q: One survey conducted by a major leasing company determined that the Lexus is the favorite luxury car…

A: Here we need to find the required test statistic for the given situation. The population proportion…

Q: In a hypothesis test with hypotheses Ho : µ = 90 and H1 : µ # 90, a random sample of 103 elements…

A: According to the given information, we have Mean = 94.3 Standard deviation = 22.1 Sample size = 103

Q: In a random sample of 1,250 adult drivers, 450 said that they would cut their driving by 10 percent…

A:

Q: The mayor of a town believes that less than 53 % of the residents favor annexation of a new…

A: Here we need to state the null and alternative hypothesis for the given situation.

Q: A advertising company claims that it receives 15 % responses from its mailing. To test this claim,…

A: From the provided information, Sample size (n) = 200 From which 40 responses. Sample proportion (p̂)…

Q: To be considered 18-karat (18K) gold, a piece of jewelry must be made of 75% pure gold. The higher…

A: It is needed to define the type I error.

Q: According to a food website, the mean consumption of popcorn annually by Americans is 63 quarts. The…

A: Given data: Mean = 63 quarts

Q: A newspaper article contains the statement that, nationwide, 36% of all graduate students have a job…

A:

Q: In a survey, 32% of the respondents stated that they talk to their pets on the telephone. A…

A: Givenn=200x=60p^=xn=60200=0.3H0:P=0.32H1:P<0.32α=0.05

Q: A sample of 1600 computer chips revealed that 42 % of the chips do not fail in the first 1000 hours…

A: Given : population proportion , p = 39 % = 0.39

Q: A political pollster is engaged by a politician to estimate the propor- tion of registered voters in…

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

Q: A research center claims that at least 27% of adults in a certain country think that their taxes…

A: Identify the correct option for claim.   The correct option for claim is determined below as…

Q: 2. A certified public accountant (CPA) claims that more than 30% of all accountants advertise. A…

A: The following null and alternative hypotheses need to be tested: Ho: p = 0.30Ho:p=0.30 Ha: p…

Q: A research center claims that at least 23% of adults in a certain country think that their taxes…

A:

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: Here we need to calculate the value of the Z statistic.

Q: A study found that in 2005 12.5% of US workers belonged to unions. Suppose a sample of 500 US…

A:

Q: A research center claims that at least 24% of adults in a certain country think that their taxes…

A: Consider, Population proportion (p) = 24% Sample size (n) = 1000

Q: A book club wonders if fewer than 40 percent of students at a local university had read at least one…

A: Test hypothesis: Denote the population proportion of students at a local university who had read at…

Q: A research center claims that at least 31% of adults in a certain country think that their taxes…

A: a) Assume that p is the true population proportion of adults, who think their taxes will be audited.

Q: To study whether the students at a university are satisfied with the food service, a sample of 200…

A:

Q: In the last mayoral election in a large city, 53% of the adults over the age of 65 voted Republican.…

A: In the last mayoral election in a large city, 53% of the adults over the age of 65 voted Republican.…

Q: A law enforcement agent believes that at least 84% of the drivers stopped for speeding on Saturday…

A:

Q: Fifty-five customers of a large-chain grocery store are asked to fill out an in-store survey. One of…

A: Given data Fifty-five customers of a large-chain grocery store are asked to fill out an in-store…

Q: A research center claims that at least 30% of adults in a certain country think that their taxes…

A: Claim: C. At least 30% of adults in the country think that their taxes will be audited.   The null…

Q: A local police chief claims that about 57% of all drug related arrests are ever prosecuted. A sample…

A: Solution: From the given information, the claim is that about 57% of all drug related arrests are…

Q: In a survey, 31% of the respondents stated that they talk to their pets on the telephone. A…

A: The hypothesized proportion is 0.31.

Q: In a survey, 45% of the respondents stated that they talk to their pets on the telephone. A…

A: Given,n=240x=104p^ =xn p^ =104240 p^ =0.4333H0 :P=0.45H1 : P<0.45α=0.01

Q: A local police chief claims that about 22% of all drug related arrests are ever prosecuted. A sample…

A: The known values are, The null and alternative hypothesis is, Level of significance, The value of…

Q: A business journal investigation of the performance and timing of corporate acquisitions discovered…

A:

Q: A research center claims that at least 23% of adults in a certain country think that their taxes…

A: Given that  Sample size n=900 Population proportion p=23%=0.23 Sample proportion p^=20%=0.20

Q: A research center claims that at least 31% of adults in a certain country think that their taxes…

A: Hypotheses are H0: P ≥ 0.31 H1: P<0.31

Q: In a hypothesis test with the null and alternative hypotheses Ho:u 60 and H1:u # 60, a random sample…

A:

Q: In a survey, 45% of the respondents stated that they talk to their pets on the telephone. A…

A: From the provided information, The test statistic value z = -0.52. Level of significance (α) = 0.01

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A:

Q: An airline claims that the no-show rate for passengers is less than 5%. In a sample of 420 randomly…

A: Given: Population proportion (p) = 0.05 Sample proportion p^=19420=0.04524

Q: According to a census company, 7.1% of all babies born are of low birth weight. An obstetrician…

A:

Q: A researcher obtains t=2.35 for a repeated measures study using a sample of n=8 participants. based…

A: Note : - Here significance level is not given, So assuming General significance value i.e α = 0.05…

Q: At a certain college, it is estimated that about 37% of the students have cars on campus, and with…

A:

Q: The administration of a University claims that 47 percent of the students change their major area of…

A:

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.