Single Americans In a recent year, about  22%of Americans 16 years and older are single. What is the probability that in a random sample of 225 Americans 16  or older, more than 36 are single? Round the final answer to at least 4  decimal places and intermediate z-value calculations to 2  decimal places.  P (X>36)=

Q: According to a 2009 Reader's Digest article, people throw away approximately 11% of what they buy at…

A: “Since you have posted multiple  question , we will solve first question for you. To get the…

Q: The mean weight of an adult is 62 kilograms with a variance of 144. If 195 adults are randomly…

A: Population mean=M=62 Population variance=S2=144 Population standard deviation=√S2=√144=12 Sample…

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

A: Given,   Sample size = 562 Sample proportion = 0.58   The null and alternative hypothesis is:

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

A: Given: n=582 and p=58%=0.58. From the given information,H0:p=0.5H1:p>0.5

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

A: Given :   sample size, n = 480 population proportion,p= 0.5 sample proportion…

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: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: Empirical probabilities are deeply rooted in probability. essentially percentages based on a large…

A: Empirical probability or experimental probability is determined how often an event has been observed…

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: Looking at the Residual Plot for Blood Pressure, is there evidence of a possible outlier? Group of…

A: In excel first enter the data as: For the smoker variables 0 denotes "No" and 1 denotes "Yes".

Q: * 00 I Question 6 The table summarizes results from 977 pedestrian deaths that were caused by…

A:

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

A:

Q: If you change the a level from .05 to .01, does the probability of making a Type I error increase,…

A: According to the given information in this questionWe need to identify the correct option

Q: Scores on a certain intelligence test for children between ages 13 and 15 years are approximately…

A:

Q: Doctors nationally believe that 78% of certain type of operation are successful in a particular…

A:

Q: need help getting started on this question:  A friend has asked you to analyze his stock portfolio,…

A: Given that C|D 40 50 60 70 total 45 0.00 0.00 0.05 0.20 0.25 50 0.05 0.00 0.05 0.10 0.20 55…

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

A: Solution-: Given: n=697,  p^=0.55, We take P0=0.5 We want to find the value of the test statistic

Q: NBA basketball players have a mean height of 79 inches and a standard devaiation of 3.5 inches.…

A: Solution: Let X be the height of NBA basketball player. From the given information, µ=79 inches and…

Q: what is the probability that the sample proportion will differ from the population proportion by…

A: We have given that the true population proportion p = 0.07. The sample size n = 492.

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

A:

Q: A company produces optical-fiber cable with a mean of 0.5 flaws per 100 feet. What is the…

A: given data λ = 0.5 flaws per 100 feet'x = number of flaws in t feetsP(x=X) = e-λt(λt)xx! for 1500…

Q: a fast food center wants to estimate the proportion of people in its city that will purchase its…

A:

Q: more than or equal to this value less than or equal to this value more than this value ss than this…

A: We have given that,  The 75th percentile is a value such that at least 75 percent of the…

Q: GlenBluss Community College has a population mean GPA is 2.82 with population standard deviation of…

A: Let X be the GPA of college students. Let us assume that X is normally distributed with mean 2.82…

Q: What’s the formula to turn a Z score to a T score?

A: The  score is the standardized score obtained by using population data or large samples .The  score…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

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: A professor knows that her statistics students' final exam scores have a mean of 79 and a standard…

A:

Q: The mean number of words per minute (wpm) typed by a speed typist is 133 with a variance off 144…

A: Given that , = 133, 2 = 144 So , = 12, n = 90 Let  be the mean of sample. = 133  =  /n = 12/90=…

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

A: From the provided information, Sample size (n) = 460 Sample proportion (p̂) = 0.58

Q: The chances of a pine tree in a particular forest being effected by the pine beetle is 10 percent.…

A: Given data  P(infected by pine beetle) = p = 0.10 x = no. of trees affected by pine beetle P(x=X) =…

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.