Statistics Question

Q: To protect baby scallops and ensure the survival of the species, the U.S. Fisheries and WildlifeServ...

A: a. An arriving vessel at a Massachusetts port has 11,000 bags of scallops. Out of these, the concern...

Q: If n 540 and p (p-hat) = 0.55, construct a 99% confidence interval. Give your answers to three decim...

A: Given Data: n=540 p^=0.55α=0.01   Since 'n' is large enough we will use normal approximation  

Q: A random number generator picks a number from 2 to 11 in a uniform manner. Find the 70th percentile....

A: Define the random variable X as the random number follows uniform distribution between 2 to 11. The ...

Q: A computer selects a number X from 4 to 12 randomly and uniformly. Round all answers to 4 decimal pl...

A: Given, a number X from 4 to 12 randomly and uniformly.       To find, a. Distribution of X? b. Suppo...

Q: A survey of 10 fast-food restaurants noted the number of calories in a mid-sized hamburger. The resu...

A: Calories in a mid-sized hamburger: 515 506 501 498 497 506 458 478 463 514 Sample size = n = 1...

Q: You are given the sample mean and the population standard deviation. Use this information to constru...

A: Let x¯ be the sample mean σ be the population standard deviation n be sample size μ be the populatio...

Q: Births are approximately uniformly distributed between the 52 weeks of the year. They can be said to...

A: The pdf is given asfx=153-1,                         x∈1,53=152

Q: Francesca is planning a bridal shower for her best friend. At the party, she wants to serve 2 bevera...

A: Combination Rule: A combination is a selection of all or part of a set of objects, without regard to...

Q: Statistics Question

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...

Q: The daily sales of a small retail store in Toronto for the last 365 days are normally distributed wi...

A:

Q: Fault  Since 1857, Parkfield, California, has had a major earthquake on the average of once every 22...

A: Given, Since 1857, Parkfield, California, has had a major earthquake on the average of once every 22...

Q: A common design requirement is that an environment must fit the range of people who fall between the...

A: Males Mean=21.5 standard deviation=1.1 Females Mean=19.9 standard deviation=1.0 Let X and Y be t...

Q: Based on past experience, a bank believes that 9 % of the people who receive loans will not make pay...

A: Based on past experience, a bank believes that 9% of the people who receive loans will not make time...

Q: Based on past experience, a bank believes that 7 % of the people who receive loans will not make pay...

A: The assumptions must be true to be able to approximate the sampling distribution with a normal model...

Q: Use the given degree of confidence and sample data to construct a confidence interval for the popula...

A: From the provided information, Sample size (n) = 70 and x = 21 Sample proportion (p̂) = x/n = 21/70 ...

Q: Do men talk less than women? The table shows results from a study of the words spoken in a day by me...

A: Let μ1 and μ2 respectively be the population means of words spoken in a day by men and women n1 =212...

Q: Roll a fair six sided die. you win $4 if you roll a number that is less than 3. you will lose $1 if ...

A: The expected value (winnings) of this probability to the nearest cent is obtained below: It is given...

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no ...

A: Solution: From the given information, confidence level is 0.999 and E=0.025.

Q: The population mean and standard deviation are given below. Find the indicated probability and deter...

A:  

Q: Two separate samples are selected from the same population. Each have an n=8. Both samples receive a...

A:

Q: Anissue of Scientific Am-ecican ceveats that batting average, x, of maiar- league baseball layers ar...

A: Given that  μ=0.270σ=0.031 If population standard deviation is known, then we can use z score. z=x¯-...

Q: A random number generator picks a number from 10 to 35 in a uniform manner. Round answers to 4 decim...

A: It is given that a = 10 and b =35.

Q: 4.65 How many days in advance do travelers purchase their airline tickets? Below are data showing th...

A: Part a: From the provided data we have, Mean =∑i xin           =11+7+11+4+15+14+71+29+8+7+16+....28 ...

Q: Express the confidence interval 35.7 % <p< 43.3 % in the form of p + ME. % ±

A: In this context, the given confidence interval is 35.7%&lt;p&lt;43.3%. p^ lies exactly in the middle...

Q: populatio or res are hormally distributed, find the 90% confidence interval. Round the answers to tw...

A: The descriptive statistics for temperatures is conducted using EXCEL. The software procedure is give...

Q: a typical adult has an average IQ score of 105 with a standard deviation of 20. If 19 randomly selec...

A: According to the provided information, Given that , mean =  = 105 standard deviation =  = 20 n = 19 ...

Q: In a survey of 2755 adults, 1447 say they have started paying bills online in the last year. Constru...

A: Here, the number of adults have started paying bills online in the last year, x is 1,447and the samp...

Q: A university conducted a study of whether running is healthy for men and women over age 50. During t...

A:

Q: Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 74 ...

A: Given Information: Mean μ=74 Standard deviation σ = 16. (a) To find the proportion of healthy people...

Q: Find the area, to the nearest thousandth, of the indicated region of the standard normal distributio...

A: The standard normal variable Z follows normal distribution with mean 0 and standard deviation 1.

Q: What type of graph would work best for displaying the gender of babies born in March? Boxplot Ste...

A: A bar graph is suitable to represent categorical data with the help of rectangular bars. The length ...

Q: john is an inspector at new york. he knows from keeping track of good and substandard clothing items...

A: From the provided information, Mean (p) = 0.04 Sample size (n) = 260 The standard deviation can be o...

Q: Suppose that the weight of an newborn fawn is Uniformly distributed between 2.2 and 3 kg. Suppose th...

A:

Q: A craftswoman produces two products: floor lamps and table lamps. Production of one floor lamp requi...

A:

Q: In the 2004 election in Utah, 66% of all Utah voters voted for Amendment 3, the marriage amendment. ...

A: The formula to compute the standard deviation of the sampling distribution of p̂ is written as: σp^=...

Q: 8

A: This problem can be solved using paired distribution. Let us calculate the difference (Nonverbal-Ver...

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.6 years...

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

Q: In a random sample of ten cell phones, the mean full retail price was $446.50 and the standard devia...

A:

Q: Consider rolling 2, 3-sided dice. Let X = the sum of the dice. Let Y = the product of the dice. a. F...

A: A two sided die has three equally likely sides, {1,2,3}. Hence, the probability of getting an outcom...

Q: Show work and formulas please and thank you :)   You wish to test the following claim (HaHa) at a si...

A: From the provided information, The hypotheses are as follow: H0: µd ≥ 0 H1: µd &lt; 0 Level of signi...

Q: A study is run to estimate the mean total cholesterol level in children 2 to 6 years of age. A sampl...

A:

Q: Find the critical values x and x²R for the given confidence level c and sample size n. L

A: Given : Confidence level (c)=0.99Sample size (n)=28

Q: A researcher conducts a repeated-measures study to evaluate the efficacy of therapy in decreasing ma...

A: Given: n = 6     mean difference, MD = 6  The estimated standard error of the mean difference, sMD =...

Q: In one store, there is a negative correlation between the sales of sweaters and the sales of sandals...

A: The nature of correlation is observed from the value of correlation coefficient and it is calculated...

Q: Construct the confidence interval for the population mean p. c = 0.98, x= 15.3, o = 5.0, and n = 55 ...

A: c = 0.98x¯ = 15.3σ = 5.0n = 55

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=100 and a standard ...

A: Normal distribution is also known as the Gaussian distribution . It is widely used in statistics .