Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a)   Suppose n = 30 and   p = 0.25.  (For each answer, enter a number. Use 2 decimal places.) n·p =  n·q =  Can we approximate p̂ by a normal distribution? Why? (Fill in the blank. There are four answer blanks. A blank is represented by _____.) _____, p̂ _____ be approximated by a normal random variable because _____ _____. first blank YesNo     second blank cancannot     third blank both n·p and n·q exceedn·p exceeds    n·q exceedsn·p and n·q do not exceedn·p does not exceedn·q does not exceed fourth blank (Enter an exact number.)

Q: As the sample size increases, the t distribution becomes more similar to the ____________________…

A:

Q: 3. For a certain type of computers, the length of time bewteen charges of the battery is normally…

A: Given that mu = 50 ,s.d =15 p ( 50 <x<70 ) = ?

Q: A match of Hoop Fever gives each player 60 seconds to make as many baskets as possible. Morgan and…

A: From the given information, M=the number of baskets made by Morgan follows normal distribution with…

Q: 35 38 41 44 47 50 53 What is the mean? 44 What is the standard deviation?

A: Given normal distribution graph is

Q: K A study was done on proctored and nonproctored tests. The results are shown in the table. Assume…

A: The given values are: n1=31, x¯1=77.19, s1=11.09 n2=33, x¯2=87.66, s2=20.66

Q: Which of the distributions shown has the smallest standard deviation? e: O The green curve, because…

A: Given : There is given 3 curve in a diagram which is shown by red , green and black color

Q: 6 Intelligence quotas on two different tests are normally just distributed. Test he has a mean of…

A:

Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 67 mph and…

A:

Q: You take all possible samples of size 100 from a very large population of values. The mean of the…

A: given data  n = 100 μ = 550σ = 50very large population  P(x¯>z) = 0.95x¯ = ?

Q: b. What is the distribution of æ? ¤ ~ N( c. What is the probability that one randomly selected…

A: b. The random variable x¯ is defined as the average amount of coffee that people drink per day. The…

Q: Which of the following is a fundamental difference between the t statistic and a z-score? a. The t…

A: We have define the basic difference between t statistic and z score

Q: On average, a banana will last 7 days from the time it is purchased in the store to the time it is…

A: Note: As per our guidelines we are supposed to answer only 3 sub-parts of any question so I am…

Q: The manufacturer of a certain candy states that 13% of the candies are brown, 24% yellow, 14% red,…

A: by bartleby policy i can gives only 3 subparts at a time From given data we have : 13% brown 24%…

Q: Which of the following statements about a negatively skewed distribution is true? O The distribution…

A:

Q: Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Which one of these graphs does not represent a normal distribution?

A:

Q: prices of a 16 oz latte are not normally distributed, with µ = $4.00 and o= $0.75. Suppose a random…

A: Given  that  Sample size n =16 Population mean =4 Population standard deviation =0.75

Q: Soda comes in cans where the amount of carbonated refreshment contained in each can is normally…

A: given datanormal distributionμ=12.1  ouncesσ=0.12  ouncesS is amount of liquid∴S~Normal(12.1,0.12)

Q: A distribution of scores has no mode and the same median and mean values. This indicates that the…

A: It is given that, Mean=Median The mode of the data does not exists.   By definition of skewness, we…

Q: The average number of miles (in thousands) that a car's tire will function before needing…

A: Given: x~N(μ,σ)μ=72σ=18n=50

Q: %78 of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: 1. A binomial distribution is the probability distribution of the type of probability experiment…

A: 1. Characteristics of Binomial Distribution a) Number of Observation (n) is fixed b) The Probability…

Q: A statistical test conducted to determine whether to reject or not reject a hypothesized probability…

A: 16) In this case, we need to identify a suitable answer for the given statement.

Q: Below is another student's solution to a normal approximation problem. Identify each step with an…

A: n=50  1 in 5 treasure We have to find the probability that you find 8 rare items in a collection of…

Q: Which of the following indicates that the use of a two-sample z-interval for a difference in…

A: Discussion: Option 1: The two-sample z-interval is constructed, when two populations of interest…

Q: It has been found that 15% of international flights per day from an airport experience some form of…

A: Given that p=15%=0.15 n=85 Standard Error: SE=p1-pn     =0.15(1-0.15)85    =0.0387

Q: Which of the following is true of the mean? (Select all that apply.) O It is the exact middle of any…

A: Mean is the ratio of sum of all values to the total number of values in a data set          Mean=sum…

Q: Use the Chi-Square test to determine if your third-generation population data fits the expected…

A: The chi-square goodness of fit test can be used to determine whether a sample distribution follows…

Q: The accompanying table contains two samples that were collected as matched pairs. Complete parts (a)…

A: The data shows two samples that were collected as matched pairs.

Q: The hme needed for colleac students to oomplete a certain paper nd pencil maze follows 80 seconds…

A: Given that  H0:μ=80Ha:μ≠80 Given that μ=80σ=16n=8x¯=74 Test statistic: z=x¯-μσn =74-80168 =-1.0607

Q: The variance of a binomial distribution for which n = 77 and p = 0.69 is: a. 8.24 b. 32.94 c. 16.47…

A: Given : Binom. dist. having :  n(no. of obser.)=77 p(prob. of success)=0.69

Q: c. What is the probability that one randomly selected person drinks between 16.5 and 17.4 ounces of…

A: c. The random variable X is defined as the amount of coffee that people drink per day which follows…

Q: Q3: A business measurement is a random variable defined by a normal distribution. The variance of…

A: The variance of this population is 2 .The sample variance for 21 randomly selected observations from…

Q: minutes) that they watch. The table below shows data that was collected from a survey. CNN A…

A: State the hypotheses. (1)   Determine the type of the study used.   The type of study used here is…

Q: Example. both SAT and ACT scores' distributions are mound shaped Mean 1000, Std. Dev. of 200 Mean…

A: z-score:X follows a distribution that has mean µ and standard deviation σ. It is the number of…

Q: If the z-value of a given x value is positive, it means that

A: The z-value of a given x value is defined as Z= (x - mean)/SD We know that standard deviation SD can…

Q: PWhich of the following is not one of the assumptions made in the analysis of variance The…

A: The assumptions of the analysis of variance are: Each sample is an independent random sample.

Q: K Find the range, variance, and standard deviation for the given sample data, if possible. If the…

A: Here  the given data values are : 2 , 2 , 2 , 2 , 4 , 1 , 3 , 2 , 2 , 2 , 2 , 1 , 1 , 2 , 2 , 3 , 2…

Q: Let x be a random variable that represents the batting average of a professional baseball player.…

A: Let X be the independent variable and Y be the dependent variable. Let X represents the batting…

Q: A fitness trainer is interested in investigating whether ethnicity and the first exercise activity…

A: Cardio Weight machines Free weights Row Total White 84 98 81 263 Hispanic 84 97 98 279 Black…

Q: Which one of these graphs does not represent a normal distribution?

A: Which one of these graphs  does not represent a normal distribution

Q: sample of size of n is selected from a population with the population proportion p ives x successes.…

A: Here use sampling distribution of sample proportion

Q: Lets take the sample of books from the library by picking 2 books from each shelf and note the age…

A: Let X be the age of the book at the library. It is known- X~N52, 62 sample size is 64. Using…

Q: 2. A radar unit is used to measure speeds of cars on a motorway. The speeds are normally distributed…

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.