A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 60%. If 117 out of a random sample of 220 college students expressed an intent to vote, can we reject the aide's estimate at the  0.05 level of significance?Perform a one-tailed test. Then fill in the table below.Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) The null hypothesis: H0:   The alternative hypothesis: H1:   The type of test statistic: (Choose one) z t Chisquare F             The value of the test statistic: (Round to at least three decimal places.)   The critical value at the  0.05  level of significance: (Round to at least three decimal places.)   Can we reject the aide's estimate that the proportion of college students who intend to vote is at least  60% ?   Yes     No

Q: Using R, calculate the mean and standard deviation for age of first period for this sample of women

A: The objective is to calculate the mean and standard deviation for age of first period for this…

Q: Let p be the proportion of female students who are female at LSU. a. If you have no preliminary…

A: Margin of error =E =0.09 95% confidence level.

Q: Using a random sample of 3800 TV households, a media research company found that 50.3% watched the…

A:

Q: The proportion of individuals in the United States who reported being “very happy” in 2014 was…

A:

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: Given data in a science fair project Emily conducted an experiment in which she tested professional…

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: From given data we have : n=331 x=158

Q: Freshman 15 The term "Freshman 15" refers to the claim that college students typically gain 15 lb…

A: The objective of this question is to find the probability that a randomly selected male college…

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35 of the…

A: Given information

Q: Part 1 of 4 (a) What Is the probablity that six or more of them used their phones for guldance on…

A: Given : Probability of success,p = 0.57 Number of trials,n = 14

Q: Can you support the original claim? Choose the correct answer below. O A. Yes, at the 9%…

A: We have given that the data of four countries A, B, C and D.

Q: Researchers are interested in whether drinking coffee can improve exam performance for college…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   a) Here our…

Q: At a Karaoke night, Darren arbitrarily assigned each singer a score from 1 to 5 on how “lively” the…

A: The study, in which the subjects are simply measured for a defined attribute, without having been…

Q: Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep.…

A: From the provided information, Sample size (n) = 339 From which 7 suffer from sleep apnea that is…

Q: Fourteen different​ second-year medical students at a hospital measured the blood pressure of the…

A: Given information, Fourteen different​ second-year medical students at a hospital measured the blood…

Q: sample proportion is p= und to three decimal places as needed.)

A: Given Number of sample of teenagers between 13 to 17 year of ages(n)=280

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: a. The answer i  letter a is correct. Since the coin is place either in left or right hand, it gives…

Q: You may need to use the appropriate appendix table or technology to answer this question.…

A: "Since you have posted a question with multiple subparts we will provide solutions only to the first…

Q: please answer a, b, c  B. H0: P OR μ H1: P OR μ  C. T or z statistic

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: (a) Construct a 95% confidence interval estimate of , the population mean procrastination scale for…

A: Confidence interval: Since the population standard deviation is unknown, t distribution can be…

Q: A sample of two hundred and fifty families showed that ninety one owned at least one car. Find an…

A:

Q: A researcher claims that based on the information obtained, 17% of young people ages 9-19 are obese.…

A: Given : Sample size  of young people ages 9-19 (n) = 200 Let X: No. of young people ages 9-19 obese…

Q: Please use the following information to answer questions 23-25: Recent research suggests that…

A: Null and alternative hypotheses :  Null hypothesis H0: µ = 4.1 hrs  : Children with ADHD watch an…

Q: 2. In an experiment to examine the relationship between heart disease and the place of life, the…

A: In an experiment to examine the relationship between heart disease and the place of life, the given…

Q: An experimenter investigated the effects of blue light exposure on people’s sleep quality.…

A: In the given research problem, there are two independent samples- Blue light and No Blue light. The…

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: Given Data Sample Size, n = 342 Number of successes, x = 156.0 Significance level,…

Q: Use the results from a survey of a simple random sample of  1045 adults. Among the  ​1045…

A: Given that  Sample size n =1045 Population proportion p=92%=0.92

Q: A simple study from a local high school is interested in determining which grade has the most car…

A:

Q: a. Construct a 90% confidence interval to estimate the actual proportion of mothers with…

A:

Q: The recidivism rate for convicted sex offenders is 15%. A warden suspects that this percent is…

A: For this study we should use:Z-test. This is because we are dealing with proportions where z-test is…

Q: an IQ higher than 90% of the population was obtained by taking the webchers IQ test, what is the IQ…

A: Given: Population mean IQ score using Stanford Binet intelligence test μ = 100 Population standard…

Q: The premiere of Game of Thrones' seventh season set a series record of 10.1 million viewers tuning…

A: Suppose μd is the difference of the mean number of people viewing live and the mean number of people…

Q: Examine the image below and then answer all parts of the question under it. Enter your answers as…

A: a) There are 4 yellow objects in 10 objects.So, P(yellow)=410=0.4b) There are 3 hearts in the 10…

Q: A survey showed that 32% of human resource professionals are at companies that rejected job…

A: Binomial Probability Distribution FormulaP(x)=x!(n−x)!n!​⋅px⋅(1−p)(n−x)Given:n = 25x = 14 p = 32% =…

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: a. If the touch therapists made random guesses, they would have a 50% chance of guessing correctly.…

Q: A poll summarized the results of a survey of 2,400 adults and 500 teens aged 13 to 17. It was…

A: From the provided information,

Q: A marketing manager fora cell phone company claims that the percentage of children aged 8-12 who…

A: Given that,  P= 61% = 0.61 sample size, n= 826 We know that p=X/n p=545/826 = 0.66 Then…

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: The number of trials conducted is n=289The number of therapists were correct is x=137It is required…

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may…

A: (a) Given: Sample Size for 98% CI , E=0.12 without p^ Confidence level =98% Desired Margin of…

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: a. Since Emily used a random coin toss (either right or left), random guessing by the therapists…

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.