The mother of a teenager has heard a claim that 25% of teenagers who drive and use a cell phone reported texting while driving.  She thinks that this rate is too high and wants to test the hypothesis that fewer than 25% of these drivers have texted while driving. She polls 40 randomly selected teenagers and 5 of them report having texted while driving.  Use a 0.05 significance level to test the mother’s claim. 1) State the null and alternative hypotheses 2) Identify the test statistic.  Round to three decimal places 3) Identify the P-value.  Round to three decimal places 4) Should you reject or fail to reject the null hypothesis? Why?

Q: In a recent​ poll, 810 adults were asked to identify their favorite seat when they​ fly, and 495 of…

A: Givenn=810p=495p^=xn=495810=0.611p=0.5α=0.01

Q: Clark Barr makes a claim that 15% of all students who take statistics drop out. Rosetta Stone…

A: 1) Hypotheses: Let p be the proportion of all students who take statistics drop out. The aim is to…

Q: Identify the null and alternative hypotheses for this test. Choose the correct answer below.

A: Here Given  Sample size=n=212 X=54 Claim-More than 20 % of user develop nausea.

Q: n​ 2010, shortly before a​ country's midterm​ elections, people in that country were dissatisfied…

A: Given: 59​% of adults in the country thought that a third major party was needed; p=0.59 62​% of…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 308 tested subjects,…

A:

Q: A magazine reported that 47% of Canadians are confident they will take a winter vacation at some…

A: Given that  Sample size n =65 Favorable cases x =27 Sample proportion p^=x/n  =27/65 =0.4154 NOTE:-…

Q: Suppose 208 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: sample size(n)=208x=50sample proportion(p^)=xn=50208≅0.2404significance level(α)=0.05

Q: Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. H,…

A:

Q: Suppose that in a random selection of 100colored​ candies, 29​% of them are blue. The candy company…

A: Claim: percentage of blue candies is equal to 26​% Null Hypothesis: H0:p=0.26 The percentage of blue…

Q: White Results from a civil servant exam are shown in the table to the right. Is there sufficient…

A: The question is about categorical data analysis Given :

Q: A used car dealer claims that the median cost of a used car is $12,000. In a random sample of 15…

A: Given median cost of a used car = $12000Total number of used cars in sample = n = 15Total number of…

Q: An author argues that more​ American-born baseball players have birth dates in the months…

A: Hypotheses: The null hypothesis is: H0­ : Months of births of baseball players are independent of…

Q: According to the US Bureau of labor statistics, 7% of US female workers between 16 and 24 years old…

A: The hypotheses are given below: Null hypothesis: H0:p=0.07. Alternative hypothesis: H1:p≠0.07. Since…

Q: a marketing team think their new ads are better than the prior ones. They used to be able to sell to…

A: The single proportion binomial test is used to compare a proportion of responses or values in a…

Q: In a studyy of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking one…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: State your decision to the significance test in terms of the null hypothesis. Consumer data reports…

A: According to the given information, we have H0: p=0.50H1: p>0.50 Test statistic, z = 1.79 P-value…

Q: Suppose 243 subjects are treated with a drug that is used to treat pain and 54 of them developed…

A: Given,   The sample proportion is,

Q: Consider a drug testing company that provides a test for marijuana usage. Among 298 tested subjects,…

A: Given, The sample proportion is,

Q: According to the Brookings Institution, 50% of eligible 18- to 29-year-old voters voted in the 2016…

A: We are given the condition for hypothesis test as we need to test whether the eligible voters voted…

Q: A survey of 1200 TV households showed that 53.5% of them had at least one stand-alone streaming…

A: Let p be the population proportion  p=majority=1/2=0.50=50%, n=1200, p^=sample…

Q: A tourist company did a survey to determine if more New Yorkers or more Californians recognize a…

A: The null and alternative hypothesis is, H0:P1=P2Ha:P1≠P2 Original claim : The recognition rates of a…

Q: Christine, a researcher in psychology and biobehavioral health, believes that city residents and…

A: That is, there is no evidence to conclude that there is difference between the two proportions.…

Q: 13) Clark Barr makes a claim that 10% of all students who take statistics drop out. Rosetta Stone…

A: 1) Claim:- 10% of students who take statistics are dropping out.

Q: The mother of a teenager has heard a claim that 25% of teenagers who drive and use a cell phone…

A:

Q: Do the needs of patients in the emergency room differ for those who come by car vs. those by…

A: There are two categorical variables which are vehicle and Emergency room. Vehicle has 2 types and…

Q: real estate company claims that 44% of all home buyers find their real estate agent through a…

A:

Q: Suppose 224 subjects are treated with a drug that is used to treat pain and 53 of them developed…

A: The objective of this question is to test a claim about a population proportion using a sample…

Q: 28% of students at a university bought lunch from the cafeteria on class days. On a recent class…

A: Givenp=28%=0.28sample size(n)=486No. of students had bought lunch(x)=149p^=xn=149486p^=0.3066

Q: A marketing manager for a phone company claims that 55% of children ages 8-12 have their own cell…

A: Hypothesis testing

Q: Select the most appropriate response. If a null hypothesis is rejected at a 1% significance level,…

A: According to the given information

Q: 2. In a study of pregnant women and their ability to correctly predict the sex of their baby, 59 of…

A:

Q: Christine, a researcher in psychology and biobehavioral health, believes that city residents and…

A: From the provided information, n1=109x1=59n2=108x2=72α=0.1

Q: o test the fairness of law enforcement in its area, a local citizens’ group wants to know whether…

A: Given:   Ticketed  Not ticketed Men  21 173 Women 37 169

Q: An author argues that more​ American-born baseball players have birth dates in the months…

A: Given :

Q: 1. A marketing manager for a cell phone company claims that more than 35% of children aged 10 – 11…

A: Solution : Given : P = 0.35             n = 5000             x  = 1805             α = 0.01 a.…

Q: A tourist company did a survey to determine if more New Yorkers or more Californians recognize a…

A: Given that, Sample size of New Yorkers n1=583 Sample size of Californians n2=641 Sample proportion…

Q: The average student loan debt is reported to be $25,235. A student belives that the student loan…

A: The hypothesized mean μ=25235 The sample size n=100 The sample mean x¯=27524 The sample standard…

Q: Suppose 219 subjects are treated with a drug that is used to treat pain and 55 of them developed…

A: It is given asPopulation proportion, p = 20% = 0.20Favourable cases, x = 55Sample size, n =…

Q: A concerned group of citizens wanted to know if the proportion of armed robberies in Texas was…

A: a) H0: p2010=p2011H1: p2010≠p2011  b) z=-3.33c) p = 0.0009d) Reject the null hypothesise) There is…