Fewer than 91% of adults have a cell phone. In a reputable poll of 1191 adults, 86% said that they have a cell phone. Find the value of the test statistic.

Q: You are considered to have an intellectual disability (ID) if you score in the lowest 2.5% of the…

A: Given data, μ=100 σ=15 P(X<x)=2.5%=0.025

Q: At the 2% level of significance, what is the decision?

A: Given : n1=10 , n2=10 , s1=22.4 , s2=12.0 , α=0.02 Our aim is to find the decision. Here , we use…

Q: What are the minimum, first quartile, median, third quartile, and the maximum of wins for the 32…

A: Since the question has multiple sub parts we will solve the first part only. Please resend the…

Q: Out of 300 students in the school, 225 passed an exam. What would be the mean of the sampling…

A:

Q: Claim: Fewer than 93 ​% of adults have a cell phone. In a reputable poll of 1162   ​adults, 85 ​%…

A: Given information- Population proportion, p = 0.93 Sample size, n = 1162 Sample proportion is- We…

Q: ​Claim: Fewer than 94​% of adults have a cell phone. In a reputable poll of 1074 ​adults, 85​%…

A: We have to find test statistics....

Q: Which value is greater than at most 75% of all scores in a data set?

A: The median is middle value of the observations, above or below which 50% of the observations lie.

Q: If the z statistic value calculated is -1.49, what is the p-value

A: Hello! Thanks for the question. There is no information about the tail of the test. We are providing…

Q: Which types of car were driven by more than 623 respondents in the survey?

A: Here use proportion from given pie chart And calculate no of people drive that type of car

Q: The median yearly salary for a police dispatcher in a large city was $44,528. If the 25th percentile…

A: a. The median yearly salary for a police dispatcher in a large city was $44528.

Q: An analysis was conducted to determine whether the average height of the 25 girls in the same class…

A: To test whether the average height of 25 girls is different from the general population of 15-year…

Q: ​Claim: Fewer than 90​% of adults have a cell phone. In a reputable poll of 1104 ​adults, 85​% said…

A: We have given that  Sample size n =1104 Population proportion p=90%=0.90 Sample proportion…

Q: ​Claim: Fewer than 92​% of adults have a cell phone. In a reputable poll of 1172 adults, 86​% said…

A: The hypotheses for the test are given below. Null hypothesis: H0: p = 0.92 Alternative hypothesis:…

Q: ​Claim: Fewer than 95​% of adults have a cell phone. In a reputable poll of 1167 ​adults, 86​% said…

A:

Q: The median salary of the 1,264 teachers in a large public school district is $39,350. If the 66th…

A:

Q: A manager at e-Bay wants to determine the current percentage of U.S. adults who now use the…

A: Obtain the sample size of a preliminary estimate for p is 0.73 The formula of sample size is, Use…

Q: ​Claim: Fewer than 95​% of adults have a cell phone. In a reputable poll of 1073 ​adults, 90​%…

A: Formula for Test statistic  Test statistic ( z ) z = ( p^ - p ) / ( √( p * ( 1 - p) / n) )

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

A: There are two dependent variables which are males and females. The independent variable is using of…

Q: About 7% of males are colorblind. Hoping to find many colorblind men for her study, a researcher…

A: It is given that p =0.07 and n = 433.

Q: A software company is interested in improving customer satisfaction rate from the 66% currently…

A: From the provided information, A software company is interested in improving customer satisfaction…

Q: A television sports commentator wants to estimate the proportion of citizens who​ "follow…

A: Solution: From the given information, confidence level is 0.96, p=0.54 and E=0.02.

Q: A data set is described as consisting of n = 15 scores. Based on the notation being used, the data…

A: We have the following statement .

Q: An opaque jar contains 300 marbles, all either green or purple. Calista pulls out 10 marbles without…

A: # Given: no of marble in jar N=300  Sample of size n=10 drawn  No of purple marble in sample =2…

Q: The mean weight of five complete computer stations is 163 pounds. The weights of four of the…

A: Disclaimer: Since you have asked multiple questions, we will solve the first question for you. If…

Q: Addmissions officer sampled 124 entering freshmen and found that 35 of them scored less than 530 on…

A: According to the provided information, x=35 n=124

Q: Explain the meaning of a poll that says 55% of Americans approve of the job the president is doing,…

A: According to the given information, a poll that says 55% of Americans approve of the president's…

Q: In 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: Given: Median = $66,650, 90th percentile = $178,500.

Q: What percentage of scores are between scores 68 and 82?

A:

Q: ​Claim: Fewer than 90​%of adults have a cell phone. In a reputable poll of 1149​adults, 81​% said…

A: It is given that 90% of the adults have a cell phone. The population proportion P is, 0.90. Also,…

Q: Ten HR majors had an average grade of 94 on an exam. Fourteen business majors averaged 86, while six…

A: Given problem Given that   Ten HR majors had an average grade of 94 on an exam. Fourteen business…

Q: A newspaper reported the results of a political poll about which candidate likely voters preferred,…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: The margin…

Q: Fewer than 96% of adults have a cell phone. In a reputable poll of 1182 adults, 87% said that they…

A: It is given that Sample size n = 1182 Sample proportion  p̂ = 0.87 Population proportion p = 0.96

Q: in a gallup poll of randomly selected adults, 66% said that they worry about identity theft.  For a…

A: Given,         sample size(n) =1013    The probability of an adults said that     They worry about…

Q: the mean number of people who attended three basketball games was 8648, what was the total…

A:

Q: Claim: Fewer than 95​% of adults have a cell phone. In a reputable poll of 1171 ​adults, 88​%…

A: From the provided information, The hypotheses can be constructed as: H0: p = 0.95 H1: p < 0.95

Q: A Chinese cell-phone manufacturer exclusively uses robots in one of its factories. A random test run…

A:

Q: What is the 87.7 percentile of X~N(12,3)

A: Answer: Given that, X~N(12,3)

Q: laim: Fewer than 96​% of adults have a cell phone. In a reputable poll of 1017 ​adults, 86​%…

A:

Q: ​Claim: Fewer than 91​% of adults have a cell phone. In a reputable poll of 1119 adults, 83​% said…

A:

Q: A Harriss poll taken surveyed 2016 adults and found that 423 of them had one or more tattoos. can…

A: The hypotheses for the test is given below.Null hypothesis:H0: p = 0.25Alternative hypothesis:H1: p…

Q: Explain the meaning of a poll that says 42% of Americans approve of the president's policies, with a…

A: According to the given information,

Q: Explain the relationships among the sample proportion, the number of successes in the sample, and…

A: Sample proportion: The fraction of number of members sampled which have a specified attribute and…

Q: A sample of students involved in laboratory accidents was categorized by age. The results appear as:…

A:

Q: When the Standard Score = -2, what is the percentile of the raw score? O 2nd O 14th 16th 34th 84th

A: Given that, Standard score = -2

Q: The mode, mean, median are all highly affected by outliers? True or false?

A: The study is about mode, mean and median.

Q: The national profession exam for registered nurses, the NCLEX, has pass a rate of 85% for the first…

A: According to the given information in this question It follows binomial distribution with parameters…

Q: What are the steps for Finding Proportions beyond Two Scores?

A: Z-score: Z-score shows how far a score is away from the mean or it shows how standard deviation away…

Q: What is the percentage of players whose age is less than 32?

A: here given  mean = 33 year  standard deviation  =  2 year x= retirement age