A publisher reports that 67% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 250 found that 62% of the readers owned a particular make of car. State the null and alternative hypotheses. what is HO and HA ?

Q: Consider the first sample to be the sample of people over the age of 55 and the second sample to be…

A: Given : p^1=sample proportion who dream in black and white over the age of 55=60303p^2=sample…

Q: According to national data, 17% of U.S. college students are a member of a sorority or a fraternity.…

A: Q.1 - Solution : Given that :-According to national data, 17% of U.S. college students are a member…

Q: According to a Pew Research Center poll conducted last year, 63% of American adults say that young…

A: According to the given information, we have H0: p=0.63H1: p>0.63

Q: According to the Centers of Disease Control, about 20% of American young people between the ages of…

A:

Q: A statistics professor wants to see if more than 80% of her students enjoyed her class. At the end…

A: Power of a hypothesis test is defined as probability of rejecting the null hypothesis when the…

Q: The alternative hypothes, denoted by Ho, is usually the hypothesis that there is no relationship, no…

A: Given: The alternate hypothesis, denoted by H0, is usually the hypothesis that there is no…

Q: A newsletter publisher believes that 25%of their readers own a personal computer. Is there…

A: Given that  A newsletter publisher believes that 25%of their readers own a personal computer. Level…

Q: A poll reported that 32% of 180 Canadians between the ages of 25 and 29 had started saving money for…

A: From the provided information,

Q: The National Center for Education Statistics would like to test the hypothesis that the proportion…

A: GivenThe national center for education statistics would like to test the hypothesisthat the…

Q: In 1942, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A:

Q: Which of the two hypotheses is the researcher always testing to reject or not?

A: The hypotheses are null and alternative hypothesis.

Q: Are the requirements met to test a hypothesis for the following two population proportions? If not,…

A: Conditions for testing the population proportion: The samples should be selected at random. The…

Q: respond favorably to a new advertisement than the people in the western part of her country. She…

A:

Q: According to the Centers of Disease Control, about 22% of American young people between the ages of…

A:

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: We have to find out given null and alternative hypothesis that we would use for this hypothesis…

Q: Given that the P-value for the hypothesis test is 0.000 when rounded to three decimal places, what…

A: The P-value is 0.000 and the level of significance is 0.05. Here, P-value is less than the level of…

Q: Massachusetts Institute of Technology grants pirate certificates to those students who successfully…

A: Claim: Test the claim that those students who go on to earn pirate certificates are able to hit a…

Q: A AUM survey claims that the less than 8.9 percent of the student population suffers from test…

A: From the given information we want to know null and alternative hypothesis.

Q: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

A: here given , Traditionally in hypothesis testing, the null hypothesis represents the "status quo"…

Q: health provider saw that 48% of their members received their flu shot in recent years. The health…

A: Hypothesis testing plays a major role in research and development. To diagnose the underlying cause…

Q: local school board wants to determine if the proportion of households in the district that would…

A: Given P value=0.04 Alpha=0.05

Q: a. Does the student organization have enough evidence to refute the college's claim? Determine the…

A: We have given that the university advertises that its average class size is 31 or less.

Q: The Associated Press found that 730 of 1000 randomly selected adults preferred to watch movies at…

A: Null and alternative hypotheses: The hypothesis, which is pre assumed as true, tentatively settled…

Q: In a recent sample of 250 households, 45% of them owned a video game console. A hypothesis test was…

A: Solution To find type 2 error we will use the definition that a type 2 error occur when the null…

Q: The researcher was interested in examining whether there was a significant difference between (a)…

A: A Hypothesis is an assertion (or) statement about the population parameter  θ The following are the…

Q: The local sheriff has staked his campaign for re-election on the claim that that at least 88% of the…

A: From the provided information, The Sheriff claim that at least 88% of the drivers stopped on…

Q: According to the Centers of Disease Control, about 21% of American young people between the ages of…

A: The random variable obesity follows binomial distribution. The value of the population proportion is…

Q: A publisher will only publish a Statistics text book if they believe that more than an average of…

A: The type I error is defined as rejecting the null hypothesis when actually it is true. The type II…

Q: According to the Centers of Disease Control, about 21% of American young people between the ages of…

A: We have given that  Population proportion p=21% I want to find null and alternative hypothesis.

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

A: Solution: Let X be number of firms announced one or more acquisitions during the year 2000 and n be…

Q: A golf instructor claims that more than 70% of his students have improved their driving distance by…

A: Given: population proportion: p = 0.70 n = 180 x = 138 Claim : A golf instructor claims that more…

Q: A publisher reports that 44% of their readers own a particular make of car. A marketing executive…

A: From the provided information, A publisher reports that 44% of their readers own a particular make…

Q: A publisher reports that 52 % of their readers own a laptop. A marketing executive wants to test the…

A: Solution : Given that, Population Proportion p0 = 0.52 Sample Size n = 350 Sample Proportion p^=0.46…

Q: Determine the null and alternative hypotheses based on the following: According to the Centers for…

A:

Q: An automobile manufacturer claims that the average gas mileage of a new model is 35 miles per gallon…

A: Correct answer is (D)

Q: A health foods shop owner is wondering if his customers' daily vitamin supplement habits are in the…

A: GivenH0:p=0.6HA:p>0.6n=50x=45p^=xn=4550=0.90α=5% =0.05

Q: Country Magazine reports that celebrity MySpace accounts have an average of 4 million friends.…

A: We have given that, Mu = 4 , Xbar = 3 , n =43 . We have to find , Which is the best set of…

Q: The mathematics department at one university reports that the failure rate for College Alge is no…

A: Type I error= Rejecting the null hypothesis when it is TRUE. Type II error = Fail to reject null…

Q: A psychologist claims that more than 5.8 percent of the population suffers from professional…

A: Alternate Hypothesis is the hypothesis claimed by the researcher   Therefore, H1: p>5.8%

Q: The mean SAT Score in mathematics is 506. The founders of a nationwide SAT preparation course claim…

A: Null and alternative hypotheses: The hypothesis which is tentatively fixed up under and tested for…

Q: A publisher reports that 40%40% of their readers own a particular make of car. A marketing executive…

A:

Q: A manufacturer of shampoo claims that 42% of the shampoo users prefer brand X. To test this claim, a…

A: Solution-: Given: n=59,x=20,P0=0.42,α=0.1 Claim:  A manufacturer of shampoo claims that 42% of the…

Q: A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students…

A: Given that  A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC)…

Q: Which of the following accurately describes a hypothesis test?

A: We know that the hypothesis testing is a part of drawing inference about population.

Q: A study found that 13% of Americans have seen or sensed the presence of an angel. A contingent…

A:

Q: A poll reported that 32% of 195 Canadians between the ages of 25 and 29 had started saving money for…

A: The random variable started saving for retirement follows binomial distribution. There are two…

Q: A fellow student tells you the P-value is the probability that the null hypothesis is true, so when…

A: Meaning and usefulness ofp-value in hypothesis testing.

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: In this context, it is given that the proportion of high school seniors who felt that “getting rich”…

Q: A December 2017 Gallup Poll reported that 43% of Americans use the internet for an hour or more each…

A: Given : Let X : No. of students use an internet for an hour or more each day Sample size (n) =60 X =…