The market shares in 2012 of four (4) television companies, A, B, C and D are listed below. A survey was carried out in 2017 on 200 television buyers and the distribution of buyers to A, B, C and D are also listed in the last column. Company Market Share in 2012 Number of buyer in 2017 A 0.4

Q: In a clinical trial of a vaccine, 10,000 children were randomly divided into two groups. The…

A: Hypothesis for given test is , H0 : p1 = p2 H0 : p1 < p2 It is left tailed test. P-value for left…

Q: A politician recently made the claim that 47% of taxpayers from a certain region do not pay any…

A: The aim is to identify the null and alternative hypotheses for testing the claim.

Q: In a recent Super Bowl, a TV network predicted that 36 % of the audience would express an interest…

A: State the hypotheses. That is, the proportion of the audience would express an interest in seeing…

Q: In a recent Super Bowl, a TV network predicted that 30 % of the audience would express an interest…

A: Given,n=133x=42p^=xn=42133=0.3158H0: p=0.3H1 : p>0.3

Q: Minnesota had the highest turnout rate of any state for the 2012 Presidential election (United…

A: Given : x1 = 663 n1 = 884 x2 = 414 n2 = 575

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: 10) In 2015, the average math SAT score for students at South Hanover High School was 520. Five…

A: Given that, the average math SAT score of students at the school is not equal to 520, but the result…

Q: We return to baby-stepping through a full hypothesis test with this problem: Last year, the average…

A: Given population mean : μ0=375

Q: In a recent Super Bowl, a TV network predicted that 36 % of the audience would express an interest…

A:

Q: In a study that is looking at the proportion of statistics majors that are male and female at a…

A: A study is done to look at the proportion of male and female of statistics majors in a particular…

Q: In a recent Super Bowl, a TV network predicted that 27 % of the audience would express an interest…

A: Givensample size(n)=122x=38The null and alternative hypothesis is H0:p=0.27Ha:p<0.27

Q: drug company claims that an allergy medication causes headaches in 5% of those who take it. A…

A: Given that  A drug company claims that an allergy medication causes headaches in 5% of those who…

Q: survey was conducted that asked AHC (Population 1) students and Cuesta students if they drive to…

A: Solution : Given information: p1^= 0.72  Sample proportion of AHC p2^=0.62 Sample proportion of…

Q: According to Sports Medicine, one in two athletes uses performance-enhancing drugs. It is believed…

A: Null hypothesis: Alternative hypothesis:

Q: In a recent Super Bowl, a TV network predicted that 21 % of the audience would express an interest…

A:

Q: In a recent Super Bowl, a TV network predicted that 39 % of the audience would express an interest…

A:

Q: Suppose a group of 1000 smokers (who all wanted to give up smoking) were randomly assigned to…

A: We have given that  Sample sizes n1= 193 , n2 = 807 ,  Favorable cases x1=12 , x2= 242 Level of…

Q: In a recent Super Bowl, a TV network predicted that 35 % of the audience would express an interest…

A:

Q: H0:p=0.41 Ha:p≠0.41 Calculate the test statistic, rounde

A: Let x be the random variable such that the number of people who said they would watch one of the…

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

A: Type II error (β):   The probability of fail to reject the null hypothesis when alternative…

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

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

Q: In a recent Super Bowl, a TV network predicted that 58 % of the audience would express an interest…

A: Given n=53 x=33

Q: In a recent Super Bowl, a TV network predicted that 34% of the audience would express an interest in…

A: The hypotheses are given below: Null hypothesis: H0: p=0.34. Alternative hypothesis: Ha:p>0.34.…

Q: In a recent Super Bowl, a TV network predicted that 53 % of the audience would express an interest…

A: The random variable who watch one of the television shows is normally distributed. The population…

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

A: Givenabout 22% of the american young people between the ages of 12 and19 are obeseclaim is that the…

Q: What is the value of the z standardized test statistic

A:

Q: A golf pro shop is deciding whether to carry a new, more expensive line of golf balls that claim to…

A: Given, A golf pro shop is deciding whether to carry a new, more expensive line of golf balls that…

Q: In a clinical trial of a vaccine, 10,000 children were randomly divided into two groups. The…

A:

Q: 5)   In a recent Super Bowl, a TV network predicted that 48 % of the audience would express an…

A: Given, The sample proportion is,

Q: Suppose you conducted a case-control study to assess whether a positive association exists between…

A: you conducted a case-control study to assess whether a positive association exists between syphilis…

Q: ppose you are have the following null and alternative hypotheses for a test you are running:…

A: Given that  A TV network predicted that 54 % of the audience would express an interest in seeing one…

Q: 3. Today, in a random sample of 30 people, Trump received an approval rating of 30% world- wide. On…

A:

Q: An SRS of 45 male employees at a large company found that 36 felt that the company was supportive of…

A: Given n1=45 x1=36 n2=40 x2=24

Q: In a recent Super Bowl, a TV network predicted that 40% of the audience would express an interest in…

A:

Q: It has recently been claimed that 25% of adults consider spring to be their favorite season of the…

A: From the provided information, Population proportion (p) = 0.25 A researcher is skeptical of this…

Q: In a recent Super Bowl, a TV network predicted that 73 % of the audience would express an interest…

A: The random variable who watch one of the television shows follows normal distribution. X ~ B (n, p)…

Q: In a recent Super Bowl, a TV network predicted that 52 % of the audience would express an interest…

A:

Q: Researchers conducted a study to determine whether the majority of community college students plan…

A: Given Information: Sample size (n) = 650 Sample proportion (p^) = 0.55 Hypothesized value for…

Q: A researcher wants to know if there is a relationship between gender and the likelihood of being a…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: In a recent Super Bowl, a TV network predicted that 33 % of the audience would express an interest…

A:

Q: In a recent Super Bowl, a TV network predicted that 84% of the audience would express an interest in…

A: The provided information is  x=49 n=61 The sample proportion is p^=xn=4961=0.803The null and…

Q: A presidential candidate claims that the proportion of college students who are registered to vote…

A: Claim : proportion of college students who are registered to vote In the upcoming election is at…

Q: In a recent Super Bowl, a TV network predicted that 23 % of the audience would express an interest…

A: The random variable television show follows binomial distribution. The sample size is 137. The…

Q: In a recent Super Bowl, a TV network predicted that 25 % of the audience would express an interest…

A: Here, population proportion p=0.25, sample proportion p^=42138, and n=138.

Q: 5. In a certain county, the local newspaper reports that the average family income for that county…

A: We have to find correct pair of hypothesis for given right tailed test.

Q: In a recent Super Bowl, a TV network predicted that 85 % of the audience would express an interest…

A: Given, The sample proportion is, The null and alternative hypothesis is:

Q: A local TV station claims that 60% of people support Candidate A, 30% support Candidate B, and 10%…

A: From the given information we find the test statistics.

Q: In a recent Super Bowl, a TV network predicted that 73 % of the audience would express an interest…

A:

Q: In a recent Super Bowl, a TV network predicted that 41 % of the audience would express an interest…

A:

Q: ial distribution is the same in at least two of the four regions. Ha​: The racial distribution is…

A: Given:   White Black Other Total Northeast 93 14 8 115 Midwest 121 19 7 147 South 161 36…

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.