The distribution of actual weights of 8-ounce chocolate bars is approximately normal with a mean of 8.1 ounces and a standard deviation of 0.1 ounces. 1 ne company who produces the chocolate bars does not want the weight to fall below 7.85 ounces, for fear that consumers will complain. b) Suppose you select 4 chocolate bars at random and calculate the mean weight. What is the probability that the mean weight of 4 randomly selected chocolate bars is less than 7.85 ounces. Be sure to: • draw, label, and shade the distribution verify conditions for shape and independence and show work for mean and standard deviation of this distribution standardize find the area give answer in context

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.8 and a standard…

A: Let "X" be the IQ score of the adults.

Q: A particular fruit's weights are normally distributed, with a mean of 526 grams and a standard…

A: Given that, Mean = 526 Standard deviation = 36 Sample size = 7

Q: the mean for test 1 is 50. and the standard deviation is 7. then the probability that a group of 49…

A: Mean(μ)=50 standard deviation(σ)=7

Q: The length of a fully grown hibiscus plants is normally distributed and has a mean of 35cm and a…

A: Given that,Mean(μ)=35standard deviation(σ)=4     The random variable  is length of fully grown…

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: The average score of all golfers for a particular course has a mean of 70 and a standard deviation…

A: μ=70,σ=4.5,n=81

Q: The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the…

A: Let us assume that X=score of a quizX follows a normal distribution with mean=24 and standard…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: Assume that adults have IQ scores that are normally distributed with a mean of 95.9 and a standard…

A: Given: Mean μ = 95.9 Standard deviation σ = 15.6 Formula Used: Z-score: Z = X-μσ

Q: According to the Nielsen Company, the mean number of TV sets in a U.S. household in 2013 was 2.24…

A: Mean = 2.24 Standard deviation = 1.3 Sample size = 95

Q: A final exam in science 160 has a mean of 73 with a standard deviation of 7.8. If 25 students are…

A: Given information- Population mean, µ = 73 Population standard deviation, σ = 7.8 Sample size, n =…

Q: Brewed decaffeinated coffee contains some caffeine. We want to estimațe the amount of caffeine in 8…

A: Obtain the 90% confidence interval estimate for the true mean amount of caffeine in eight-ounce cups…

Q: What​ women's height corresponds to a​ z-score of −1.80​? b. Professional basketball player Evelyn…

A: It is given that For men, mean = 64, and SD = 2.5 For women, mean = 73, and SD = 2

Q: The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of 16.…

A: Given that  Number of trials n=16 Success of probability p=0.7 q=1-p=1-0.7=0.3

Q: Assume that adults have IQ scores that are normally distributed with a mean of 103.6 and a standard…

A: Given that adults have IQ scores that are normally distributed with, Mean = 103.6 Standard deviation…

Q: The amount that people pay for their cellphone service is normally distributed with a mean of $136…

A:

Q: A sniper hits a target 80% of the time. He fires five shots at the target. Find  A. Probability…

A: Given problem is binomial distribution Let X: No. of hits n=No. of shots at the target=5 p=prob. of…

Q: Find the probability that an observation taken from a standard normal population will be more than…

A: We have to find given probability..

Q: The length of a fully grown plant is normally distributed and has a mean 35cm. It is found that 5%…

A: Solution: (1). Find the standard deviation: Denote the length of a fully grown plant with the random…

Q: The average score of all golfers for a particular course has a mean of 61 and a standard deviation…

A: Mean()=61Standard deviation()=4Sample size(n)=64

Q: An elevator has a weight capacity of 2000 pounds. Assume the weights of us men have a mean of 190…

A: The probability the elevator will be over capacity is obtained below:From the given information X…

Q: Assume that​ women's heights have a distribution that is symmetric and​ unimodal, with a mean of 67…

A: The following information has been given: The mean of women's height is μw=67 The standard deviation…

Q: The grades of a statistics midterm are normally distributed with a mean of 79 and a standard…

A: Normal distributionμ=79σ=3.5pgrade between74 and 80=?

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: 5. The heights of NBA basketball players closely follow a Normal distribution with a mean of u = 79…

A: Z-Score:             It is a dimensionless quantity that is used to indicate the signed, fractional,…

Q: The electric bills for all households in a large city have the normal distribution with a mean of…

A:

Q: 1, the mean number of goldfish in the package is 187. find the probability of choosing a package…

A: Thanks for posting the question. Since multiple questions are posted, we will answer one question…

Q: The IQ of highschool seniors is normally distributed with a mean of 100 and a standard deviation of…

A: The sample size is n=15. The population mean is μ=100. The population standard deviation is σ=15. We…

Q: According to government data the probability that an adult was never in a museum is 11%, in a random…

A: Givenp=0.11sample size(n)=20Let "x" be the no.that were never in a…

Q: A grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard…

A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm

Q: At a large university, data were collected on the number of sisters and brothers that each student…

A: The objective of the question is to find the mean of the distribution of the sum of two random…

Q: A door-to-door salesperson is visiting houses in Hamilton to sell internet plans. The probability…

A: The probability that a house decides to buy the internet plan is 25%. The salesperson visits 100…

Q: The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the…

A: Given data,μ=24σ=1.5P(X<21.9)=?

Q: Find the probability that a randomly selected adult has an IQ greater than 136.4

A: Let X denote the IQ scores of adults. Given that X follows N(mean = 101.3, SD = 20.2), then  Z = (X…

Q: A professor of statistics noticed that the marks in his course are normally distributed. He also…

A:

Q: Assume that​ women's heights have a distribution that is symmetric and​ unimodal, with a mean of 64…

A: As per the multiple questions rule, answering first question. Please repost the second question…

Q: Q6- Assume the probability that a maple tree at age 5 grows less than 140 cm is equal to 0.2. If the…

A: Given Data: Let X represent the height of the maple tree P(x<140)=0.2 σ=81=9

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.9 and a standard…

A:

Q: A civil engineer takes a public ride going to his firm. The average time for his trip is 24 minutes,…

A: Given : A civil engineer takes a public ride going to his firm.  The average time for his trip is 24…