It is known that 75% of undergraduates at one school say they will get a covid vaccine as soon as they are able to. You wish to test if the proportion of students who say they will get a covid vaccine as soon as they are able to differs from 75%. Set up hypotheses and perform the test based on results from a poll we will hold in class this week. Use a significance level of α = .01. Given: Poll results: 51 (89%) of students will get a covid vaccine, and 6 (11%) will not get. Total 57 students on a poll.

Q: Range anxiety is one of the reasons consumers are reluctant to switch to an electric vehicle, and…

A: Given information: x 89 90 91.5 92 92.5 95 95.5 96 93 93.5 94 94 91…

Q: One study claimed that 88% of college students identify themselves as procrastinators. A professor…

A: Given,n=282x=235Population proportion(P)=0.88sample proportion(p^)=xnsample…

Q: Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of…

A: The following information has been given: x¯=102.83 , y¯=100.85 , r=0.881 , p-value…

Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…

A: n = 20 x¯ = 101.52y¯ = 101.1r = 0.850p value = 0.000regression equation : y^ = 8.69+0.91xfor x = 90…

Q: One study claimed that 86 % of college students identify themselves as procrastinators. A professor…

A: Suppose p is the true population proportion of college students, who are procrastinators.

Q: Past studies have indicated that the percentage of smokers was estimated to be about 33%. Given the…

A:

Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…

A: The provided regression line is: y⏞=26.39+0.76x

Q: Physicians at a clinic gave what they thought were drugs to 900900 patients. Although the doctors…

A: Let p be the population proportion of patients reported an improved condition. The hypothesis that…

Q: Historically, the percentage of residents of a certain country who support stricter gun control laws…

A: The percentage of residents of a certain country who support stricter gun control laws is 54​%.…

Q: You want to conduct a test to determine whether there are significant differences in the mean…

A: It is needed to find the proper test.

Q: A rare birth defect occurs in approximately 0.5% of all cases in males. If we sample all the males…

A: Given information: The total number of males born in 2016 in a specific region is N = 200,000. It is…

Q: The current best option for coronavirus is the effective 5% of the time. If I wanted to test whether…

A: From the provided information, The current best option for coronavirus is the effective 5% of the…

Q: Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of…

A: The regression equation is y^=-6.7+1.09x.

Q: Panel Fish Species Grass Carp 3. 3 Member Snakehead Catfish Rohu Tilapia Sea Bass 2 4 6. 2 6. 2 4. 3…

A: The following information has been given:   Snake head cat fish grass carp rohu tilapia sea…

Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…

A: The question is about regression Given : No. of sets of couples ( n ) = 20 x¯ = 99.05 y¯ = 100.15 r…

Q: The US Department of Energy reported that 47% of homes were heated by natural gas. A random sample…

A:

Q: Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of…

A:

Q: A researcher wanted to know which local brewery had the best IPA. Each participant tried a sample…

A: The objective is to test whether if there exists a significant effect of brewery on IPA popularity…

Q: Select the most appropriate response. Five years ago, a survey found that the proportion of city…

A: Solution:  The null and alternative hypotheses are:

Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…

A: y^ = 1.15 + 1.02x

Q: Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of…

A:

Q: The recidivism rate for convicted sex offenders is 9%. A warden suspects that this percent is higher…

A: Given  Z=test statistic=2.697,  Hypothesis  Ho: p=0.9 vs H1: p>0.9 (right tailed) Level of…

Q: Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of…

A: Let  represent the IQ score of older child. And  be the IQ score of siblings.The sample size:  and…

Q: state the null and alternative hypotheses  b. calculate the test statistic  c. what are the df?…

A: a) claim: patients wants to compare the two different programmed designed for weight gain let us…

Q: The US Department of Energy reported that 51% of homes were heated by natural gas. A random sämple…

A:

Q: Interpret the P-value.

A: here given , A store manager claims that 60% of shoppers who enter her store make a purchase. To…

Q: For a sample of n=16 scores, how many scores are used to calculate the sample variance?

A:

Q: ata Table

A: Factor( Advertisement media) We want to test hypothesis that there is a significant effect of…

Q: Consider the data below. Three random samples in different cities were selected. Water use per…

A: There are 3 independent samples which are city 1, city 2 and city 3. We have to test whether samples…

Q: Floretta, a golfer, claims that her drive distance is not equal to 238 meters, a believe her, so she…

A:

Q: The accompanying table provides the data for 100 room inspections at each of 25 hotels in a major…

A: The provided information is as follows:The population proportion under the null hypothesis is .The…

Q: If alpha= 0.05 and the p-value O Fail to Reject Ho O Reject Ho O Reject Ha O fail to Reiect Ha

A: Given that : alpha =0.05 p value =0.01

Q: believes that th 272 college student- of One study claimed that 88 % of college students identify…

A: The question is about hypo. testing Given : Popl. prop. of students who identify themselves as…

Q: One study claimed that 86% of college students identify themselves as procrastinators. A professor…

A: Given: Sample Size,n= 238 Number of successes,x= 193

Q: andom sample of 40 students and finds that 30% of them have period 4 lunch. Later, he goes to the…

A: Given, In a random sample of 40 students, 30% of them have period 4 lunch. Out of the 380 students…

Q: Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of…

A: Given data,Regression equation isy=-12.38+1.13xIf x=97y=?

Q: From previous studies, it is concluded that 15% of people support stricter gun laws. A researcher…

A: H0 : p =0.15       H1 : p <0.15       Population proportion = p₀ = 0.15 Sample number of…

Q: The recidivism rate for convicted sex offenders is 9%. A warden suspects that this percent is higher…

A: Note: Hi! Thank you for the question. Based on the question you have posted, along with the already…

Q: When comparing two independent population means, if n1 = 13 and n2 = 10, degrees of freedom for the…

A: We have given that  n1 = 13,    n2 = 10  We know that the degrees of freedom for two independent…

Q: The Bureau of Labor Statistics reports that the official unemployment rate for Black people was…

A: Variables are of different types. The correct classification of variables and the identification of…

Q: proportion of homes in Oregon that were heated by natural gas is different than what the DOE…

A: Given data number of success , x= 132 sample size, n =331 population proportion,p= 0.48…

Q: Cadmium, a heavy​ metal, is toxic to animals.​ Mushrooms, however, are able to absorb and accumulate…

A: Type I error occurs when we reject a null hypothesis that is actually true. Type II error occurs…

Q: Kenneth, a competitor in cup stacking, claims that his average stacking time is 8.2 seconds. During…

A: Note:The given calculated values can be used to draw the conclusion.

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.