Assume that the average weight of an NFL player is 245.7 pounds with a standard deviation of 34.5 pounds, but the probability distribution of the population is unknown. If a random sample of 32 NFL players is selected, a)  What is the probability that the average weight of the sample will be less than 234 pounds? b)  What is the probability that the average weight of the sample is between 248 and 254 pounds? c)  Calculate the average weight of a sample is between 242 and 251 pounds if the sample consists of n = 120 players.

Q: use a normal approximation to find the probability of the indicated number of voters. In the case,…

A:

Q: n. Find the probability that if the wife is watching television, the husband is alse watching…

A: Let us define some events A : husband is watching television. B : husband is not watching…

Q: The lifetime of a certain electrical part is a random variable with mean 100 hours and standard…

A: The given values are:Population mean (μ) = 100 hoursPopulation standard deviation (σ) = 20…

Q: 53% of all incoming students is enrolled in a Math class. Suppose that you randomly select 2…

A: As per our guidelines we can solve first three subpart and rest can be reposted. Solution-: Given:…

Q: The speed of airliners flying at cruise altitude is normally distributed with au=522.0 miles/hour…

A:

Q: Use a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A:

Q: The mark-and-recapture technique is commonly used to estimate the population size of animal species.…

A: In this case, each of the obtained rabbits has the only options of being "marked" (defined as…

Q: Suppose that the average price for a gallon of gasoline in the Country A is $2.74 and in Country B…

A: For country AMean()=2.74standard deviation()=0.25For country BMean()=2.40standard deviation()=0.20

Q: The standard deviation of monthly rents paid by students in a particular city is assumed to be $ 60.…

A: a) From the given information, the standard deviation of monthly rents paid by students in a…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A:

Q: a. The probability that the commuting time will be less than 51 minutes is 0.5 (Type an integer or a…

A: It is given that the random variable X follows Uniform distribution i.e.,X ~ U(a,b)a = 41  , b =…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A:

Q: Based on a poll, 50% of adults believe in reincarnation. Assume that 4 adults are randomly selected,…

A: Here given that 50% of people believe in reincarnation. A sample of 4 adults is taken. This follows…

Q: Suppose that the commuting time on a particular train is uniformly distributed between 50 and 70…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: The probabilities that the diameter of any item is less than, greater than or equal to some accepted…

A:

Q: a. The probability that the commuting time will be less than 51 minutes is (Type an integer or a…

A: X~U(a,b)a=41  , b=61NOTE:- According to bartleby guidelines expert can solve maximum three subpart…

Q: The number of ants per acre in the forest is normally distributed with mean 43,000 and standard…

A: As due to the honor-code, we are authorized to answer only 3 subparts for each question and that you…

Q: 27. The mean undergraduate cost for tuition, fees, room and board for a four-year institution was…

A: 27.The mean is $26489 and the standard deviation is $3204.

Q: Based on a poll , among adults who regret getting tattoos, 28% say that they were too young when…

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

Q: B. If the gondola is filled with 25 randomly selected skiers, what is the probability that their…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: The All Ages Records shop finds that 80% of customers entering the store do not make a purchase. One…

A: The provided information is  n=180 p=0.80 a. The mean of sample proportion of customers making a…

Q: selects 100 random samples. Find the probability that among them there will be five items with a…

A: here given , The probabilities that the diameter of any item is less than, greater than or equal to…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A: Given, n = 114 p = 22% = 0.22

Q: Assume that 39.1% of people have sleepwalked. Assume that in a random sample of 1541 adults, 611…

A:

Q: The amounts due on electricity bills for all households in a city have a skewed probability…

A: GivenMean(x¯)=154standard deviation(σ)=33sample size(n)=67

Q: • A) Given the data Pulse Rate (beats per minute) Mean St. Dev. Distribution Males 69.6 11.3 Normal…

A: Note: As per my policy i can answer only one question. kindly repost the remaining one. Given data…

Q: Assume that 29.8% of people have sleepwalked. Assume that in a random sample of 1492 ​adults, 487…

A:

Q: 5. A survey by KRC Research for U.S. News reported that 34% of people plan to spend more on eating…

A: Given: n=8 and p=0.34. a)Then, the expected value of isE(X), μ=np=8(0.34)=2.72

Q: Assume an approximate U.S population of 325 million. Number of death due to heart disease and…

A: GIVEN DATA : Population of U.S is 325 million.                         Number of death due to heart…

Q: When studying radioactive​ material, a nuclear engineer found that over 365​ days, 1,000,000…

A: The  studying radioactive​ material found that 25,575 atoms decayed during 365 days. That is,…

Q: selects 100 random samples. Find the probability that among them there will be five items with a…

A:

Q: The probability that the sample mean weight of this sample of 20 is greater than 9.75 is _____? b.)…

A: Answer:- Given, mean, µ= 9.8 Standard deviation, σ= 0.16  Let , X = Actual weights of wedges of…

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.