The alternative hypothesis of the chi-square test states that the obtained chi-square value will be: Group of answer choices less than one. equal to one. greater than zero. equal to zero.

Q: A local college recently made the news by offering foreign language-speaking dorms to its students.…

A: Given observed frequency(O) table : Expected frequencies and Test statistics can be calculated as…

Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 218 women,…

A:

Q: Automobiles Purchased An automobile owner found that 20 years ago, 76% of Americans said that they…

A: Given: P = 0.76 n = 58 X = 50 α = 0.10 Formula Used: Test-statistic Z = p-PP(1-P)n

Q: A presidential of staff's club hired a public relations firm to conduct a poll to see whether he…

A:

Q: Do you prefer paintings in which the people are fully clothed? This question was asked by a…

A: Given: n1 = 55  r1 = 44  n2 = 63 r2 = 39  Level of significance = 0.05

Q: Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1190 adults, 84% said that…

A: It is of interest to test the claim that fewer than 93% of adults have a cell phone.

Q: Using the results r(128) = –.64, p > .05, what is the most appropriate conclusion? A. r is not…

A: It is given that:The value of correlation coefficient between X and Y for 128 observations: The…

Q: researcher randomly selects 165 vehicles and sees how many miles each car has been driven and the…

A:

Q: Claim: Fewer than 95% of adults have a cell phone. In a reputable poll of 1093 adults, 86% said that…

A: p=95% , n=1093, p^=86%

Q: Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1120 adults, 90% said that…

A: Given: n= 1120 p= 0.98 p̂= 0.90

Q: Claim: Fewer than 91% of adults have a cell phone. In a reputable poll of 1101 adults, 81% said that…

A: We can use the null hypothesis that the true proportion of adults who have a cell phone is equal to…

Q: Claim: Fewer than 94% of adults have a cell phone. In a reputable poll of 1079 adults, 89% said that…

A: Given that, Null and alternative hypothesis:

Q: Would you favor spending more federal tax money on the arts? of a random sample ofn,91 politically…

A: The random variable is voters follows normal distribution. There are 2 independent samples which are…

Q: Claim: Fewer than 94% of adults have a cell phone. In a reputable poll of 1082 adults, 85% said that…

A: Given  n=1082, pcap=85%=0.85, p=94%=0.94 Ho:p=0.94 vs H1: p<0.94

Q: Claim: Fewer than 96% of adults have a cell phone. In a reputable poll of 1154 adults, 89% said that…

A: Fewer than 96% of adults have a cell phone.In a reputable poll of 1154 adults,89% said that they…

Q: has the proportion of adults who totaly abstain from alcohol changed? what is the zo= what is the p…

A: Given : x1= 440.0 n1= 1100 x2= 374.0 n2= 1100 significance level, 0.05

Q: Claim: Fewer than 98​% of adults have a cell phone. In a reputable poll of 1002 ​adults, 90​% said…

A:

Q: Would this be a t-test because the sample is less than 30?

A: From the given information, the population standard deviation is 2.

Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 87…

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

Q: 20% of our Jadara university students feel that the bus system at the university is adequate. If 100…

A: Given that, n = 100, p = 0.20 The values of mean and standard deviation are,

Q: Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1161 adults, 85% said that…

A: The hypothesized proportion is 0.93.

Q: answer for letter d and e

A: Given datacompany           year 1 score          year 2 score Rite Aid                  76…

Q: #1 = $48,877 a2 = $55,157 81 = $16,000 82 = $12,000 a. Formulate hypotheses so that, if the null…

A: Given Data : For Finance majors x̄1 = 48877.0 s1 = 16000.0 n1 = 130…

Q: A study by Consumer Reports showed that 62% of supermarket shoppers believe supermarket brands to be…

A: a.) The following information has been given: Hypothesized population proportion is p=0.62. Null and…

Q: Claim: Fewer than 94% of adults have a cell phone. In a reputable poll of 1051 adults, 88% said that…

A: The random variable X follows binomial distribution. The population proportion is 0.94. We have to…

Q: Claim: Fewer than 97​% of adults have a cell phone. In a reputable poll of 1115 adults, 92​% said…

A: Given,n=1115p^=0.92claim:  Fewer than 97​% of adults have a cell phone.

Q: Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1188 adults, 83% said that…

A: Solution: From the given information, p-hat=0.83 and n=1188.

Q: Claim: Fewer than 92% of adults have a cell phone. In a reputable poll of 1175 adults, 83% said that…

A:

Q: Claim: Fewer than 94​% of adults have a cell phone. In a reputable poll of 1148 ​adults, 88​% said…

A:

Q: Statistics students believe that the mean score on a first statistics test is 65. The instructor…

A:

Q: Claim: Fewer than 96% of adults have a cell phone. In a reputable poll of 1227 adults, 89% said that…

A: Answer - Claim: Fewer than 96% of adults have a cell phone. i.e  p = 0.96               In a…

Q: Claim: Fewer than 95% of adults have a cell phone. In a reputable poll of 1189 adults, 86% said that…

A:

Q: Claim: Fewer than 96% of adults have a cell phone. In a reputable poll of 1132 adults, 86% said that…

A: Solution-: Given: n=295,P0=96%=0.96, p^=86%=0.86 We want to find test statistic=?

Q: ​Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1135 adults, 86​% said…

A:

Q: Expedia would like to test the hypothesis that the proportion of United Airline flights that arrive…

A: It is given that Sample size n = 110 Number of flights arrived at time, X = 82 Level of significance…

Q: A student takes a true-false test that has 6 questions and guesses randomly at each answer. Let X be…

A:

Q: To get a grade of A-, a student must have a mean average of 90 or greater.  Jim has a mean average…

A:

Q: The value of the test statistic is Round to two decimal places as needed.)

A: Let P be the population proportion of adults have cell phone P=96% = 0.96  Sample of size n= 1186…

Q: A group of 9 concertgoers was selected at random. Before the concert they were given a hearing test,…

A: The appropriate Null and Alternative Hypotheses are given below: From the given information, the…

Q: Claim: Fewer than 97% of adults have a cell phone. In a reputable poll of 1073 adults, 87% said that…

A: Ho: p = 0.97   H1: p < 0.97 (Claim) p^ = 0.87 , n = 1073

Q: Dorothy Little purchased a mailing list of 2,000 names and addresses for her mail order business,…

A: BINOMIAL DIST

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: Give the z-scores for the teacher that are 30 years old and 63 years old (round to two decimal…

A: Introduction: For a random variable, X with mean μ, and standard deviation σ, the z-score is given…

Q: Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1234 adults, 83% said that…

A: Sample size , n = 1234 p = 93%  = 0.93 p^ = 83% = 0.83

Q: Claim: Most adults would erase all of their personal information online if they could. Asoftware…

A: In this scenario, It is appropriate to use one prop Z test. Null and alternative hypotheses: Let p…

Q: The engineering department at a major university claims that 20% of its graduates are women. A…

A:

Q: Claim: Fewer than 96% of adults have a cell phone. In a reputable poll of 1076 adults, 89% said that…

A:

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: The value of p0 is 0.52 and the sample size n is 800.