In a recent year, 6% of cars sold had a manual transmission. A random sample of college students who owned cars revealed the following: out of 124 cars, 25 had manual transmissions. Estimate the proportion of college students who drive cars with manual transmissions with 90% confidence. Round intermediate and final answers to at least three decimal places.

Q: Ninety-four percent of students said that cash is their top choice for a graduation gift. If 75…

A: It is given that sample size (n) is 75and the sample proportion value is 0.94.

Q: Of 500 random people surveyed, 72 were smokers.  Find the 95% confidence interval. SE=0.0157

A:

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

A:

Q: In all, 200 students took a statistics exam. The first quartile (or Q1) for all 200 scores is 60.…

A: Quartile is a statistics which is used to divide the whole data into four equal parts. It means…

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: “Snoqualmie” is a name shared by a waterfall and a tribe of Native Americans. In a study of the…

A: The provided data is,

Q: A poll stated 36% of people drink coffee to combat midday drowsiness. A recent survey was taken and…

A: Givenn=48x=19p^=xn=1948=0.3958α=0.02

Q: A random sample of 600 adults in Flagstaff found 90 adults who had lost a job in the past year. Find…

A: Step 1:Given data : Sample size n=600no. of successes x=90   Sample proportion p^​=60090​=0.15Let p…

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: Compute the test statistic. Round to two decimal places.

A: Sample size, n=2027 No. of adults who drank diet soda, x=485

Q: researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 520…

A:

Q: A study conducted by a research group in a recent year reported that 57% of cell phone owners used…

A: Introduction: Denote X as the random variable of interest here, which is the number of cell phone…

Q: A random sample of 268 college students were asked if they believed that places could be haunted,…

A: n is the sample size p is be the proportion of students who responded yes q is the proportion of…

Q: The null and alternative hypotheses would be:        H0:H0:  Select an answer p1 μ1 μd  Select an…

A: Working: Right Left D (D-dbar)^2 40 39 1 3.0625 40 44 -4 10.5625 45 45 0 0.5625 41 41 0…

Q: The. Nielsen television ratings used a random sample of 2,000 homes and found that 45% of the homes…

A:

Q: q

A:

Q: In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: Let x be a total number of applicants with a Math SAT score.Then, it is given that 32% of x had a…

Q: With a percentile of 68 on a test of ambience given to mindanao resorts, bung gumni resorts score of…

A: Given, With a percentile of 68 on a test of ambience given to Mindanao resorts, bung gummi resorts…

Q: A publisher reports that 22% of their readers own a laptop. A marketing executive wants to test the…

A: Denote p as the true proportion of readers, who own a laptop. It is reported that 22% of their…

Q: A national survey of 1000 adult citizens of a nation found that 19% dreaded Valentine's Day. The…

A:

Q: In one city, 59.6% of the 1500 students surveyed said they eat at the school cafeteria. Find the 95%…

A: Given, Sample size=n=1500 p^=0.596 α=0.05

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: In a sample of 300 people, 154 said that they watched news on television. Find the 90% confidence…

A: According to the given information in this question We need to find the 90% confidence interval of…

Q: A Social Psychologist is interested in finding out if there is a difference in the anxiety…

A: Hypotheses for the test are given below:

Q: When 290 college students are randomly surveyed, it is found that 120 own a car. Find a 99%…

A: Given that, x=120,n=290 The sample proportion is, Critical values: By using the standard normal…

Q: In a sample of 310 adults, 177 had children. Construct a 87% confidence interval for the true…

A: Find z-critical value:…

Q: A nationwide study of American homeowners revealed that​ 65% have one or more lawn mowers. A lawn…

A: The sample size is 497 and the test is right tailed.

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: Please answer number 13.

A: It is given that 43% had no children, 18% are had one child, 18% are have two children, 21% have…

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: At OC, students have been surveyed to see whether they attend orientation. The data is as follows:…

A: Woman         Men Yes              162              112 No               148…

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 recidivism rate for convicted sex offenders is 14%. A warden suspects that this percent is…

A: Given,n=359x=65P^=Xn=65359=0.181α=0.05H0: P =0.14H1: P>0.14

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: Assume a Normal distribution.  What can be concluded at the the αα = 0.01 level of significance…

A: 1. Two samples are said to be dependent of each other when values of one sample is related with…

Q: In a survey of 2318 adults, 747 say they believe in UFOs. Construct a 99% confidence interval for…

A: The 90% confidence interval for the population proportion is between (0.297,…

Q: Is the average time to complete an obstacle course shorter when a patch is placed over the right eye…

A: Note: Here only the 8 data points are given NOT 13

Q: A poll done for Newsweek found that 13% of Americans have seen or sensed the presence of an angel. A…

A: The random variable is who have seen or sensed the presence of an angel.We have to test whether the…

Q: expensive). The toy was priced the same at all retail stores. Compute the percentage of variance…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.