A publisher reports that 44% 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 260 found that 40% of the readers owned a particular make of car. State the null and alternative hypotheses.

Q: Which of the following describes a Type Il error for the hypotheses?

A: The type II error is defined as accepting the null hypothesis when the alternative is true.

Q: If the null hypothesis is rejected at a level of significance of 5%, then in some cases, it could be…

A: We have to find the statement is true or false..

Q: A reader wrote in to the “Ask Marilyn” column in Parade magazine to say that his grandfather told…

A: As per guidelines we will only answer first three subparts, please repost other subparts for more…

Q: Your school newspaper reported that the percentage of students majoring in business (p) is at most…

A:

Q: . Restate the grandfather’s assertion as the null hypothesis, in symbols and in words. 2. Given…

A: Given, n=95 X=47

Q: A paint manufacturer advertises that one gallon of its paint will cover 400 square feet of an…

A: For paint manufacturer, The null and alternative hypothesis are : Ho : μ=400H1 : μ<400  For…

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

A:

Q: Suppose a recent survey found that 74% of dog owners say their pet appears cheerful, while only 59%…

A: Given, p^1=0.74p^2=0.59

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: You are asked to test the null hypothesis at the .05 level of significance and you end up with…

A: It is given that the z-observed value is -1.83.

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: A newsletter publisher believes that 38% of their readers own a Rolls Royce. A testing firm believes…

A: Given that, a newsletter publisher believes that 38% of their readers own a Rolls Royce. A testing…

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

A:

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

A: (a) Denote p as the true proportion of obese students between 12 and 19 years of age, in the local…

Q: Among a simple random sample of 331 American adults who do not have a four-year college degree and…

A: a) Given, n=331 p^=0.48 Hypothesis: H0:p=0.5 H1:p<0.5 Level of significance = 0.05 ( assuming)

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

A:

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A:

Q: A publisher reports that 48 % of their readers own a personal computer. A marketing executive wants…

A: The publisher reports that 48% of their readers own a personal computer.

Q: A newsletter publisher believes that over 63% of their readers owns a Rolls-Royce. For marketing…

A: Given: p=63% = 0.63 α=0.10 The advertiser decides to reject the null hypothesis.

Q: An economist claims that the proportion of people who plan to purchase a fully electric vehicle as…

A: The provided information are: Sample size (n) = 750Hypothesised proportion (po)=0.65From the…

Q: In a hypothesis test, the likelihood of rejecting the null hypothesis is independent of the sample…

A: Introduction: In a hypothesis testing problem, the decision regarding rejection/ failure of…

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: Recently, a large academic medical center determined that 8 of 15 employees in a particular position…

A: Given information- Significance level, α = 0.01 Population proportion of female, p = 0.43 Sample…

Q: a car maker claims that its new sub-compact car gets better than 49 miles per gallon on the highway.…

A: Given that a car maker claims that its new sub-compact car gets better than 49 miles per gallon on…

Q: A certain university claims that for the last school year the proportion of students who were not…

A: Given that  Claim : The proportion of students who were not able to earn a college diploma is at…

Q: The overall question is: Is this sufficient evidence to say that the two true proportions are…

A: Here compare proportion of male and female said yes

Q: A newsletter publisher believes that over 54% of their readers own a personal computer. Is there…

A: The null hypothesis and the alternative hypothesis are given below:

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: 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: USA Today reported that about 47% of the general consumer population in the United States is loyal…

A: We have given that the hypothetical proportion p0=0.47, sample size 1002 and favourable cases X =…

Q: of men who own cats is smaller than the proportion on nce level. The null and alternative hypothesis…

A: Given: Level of significance, α=0.005 Set the hypothesis: H0 : pM=pFHa : pM<pF The test is: right…

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: The federal government would like to test the hypothesis that the average age of men filing for…

A:

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: If the level of significance in a hypothesis test is 1 %, what would the p-value have to be for…

A: We fail to reject the null hypothesis when the p value is greater than the significance level. We…

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

A:

Q: The smaller the observed p-value, the more evidence you have against the null hypothesis. Select…

A:

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: USA Today reported that about 47% of the general consumer population in the United States is loyal…

A: a) The level of significance is 0.01.

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

A:

Q: USA Today reported that about 47% of the general consumer population in the United States is loyal…

A: "Hi! Thank you for the question! Since the question contains four subparts and we are allowed to…

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 brokerage firm is curious about the proportion of clients who have high-risk stocks in their stock…

A:

Q: an airline promotion to business travelers is based on the assumption that two-thirds ofbusiness…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

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 =…

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.