Math

StatisticsQ&A LibraryNW 39. Chips Ahoy! Cookies The number of chocolate chips in an 18-ounce bag of Chips Ahoy! chocolate chip cookies is approximately normally distributed with a mean of 1262 chips and standard deviation 118 chips according to a study by cadets of the US Air Force Academy Source: Brad Warner and Jim Rutledge, Chance 12(1): 10-14, 1999 (a) What is the probability that a randomly selected 18-ounce bag of Chips Ahoy! contains between 1000 and 1400 chocolate chips, inclusive? (b) What is the probability that a randomly selected 18-ounce bag of Chips Ahoy! contains fewer than 1000 chocolate chips? (c) What proportion of 18-ounce bags of Chips Ahoy! contains more than 1200 chocolate chips? (d) What proportion of 18-ounce bags of Chips Ahoy! contains fewer than 1125 chocolate chips? (e) What is the percentile rank of an 18-ounce bag of Chips Ahoy! that contains 1475 chocolate chips? What is the percentile rank of an 18-ounce bag of Chips Ahoy! that contains 1050 chocolate chips?Start your trial now! First week only $4.99!*arrow_forward*

Question

I wanted help walking through this problem in order to gain a better understanding of Normal Probability distributions.

1 Rating

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: For this set of data, the standard deviation (s) is equal to: 9, 8, 10, 5, 5, 2, 3, 6, 3

A: Mean:The formula for finding mean is shown below:

Q: Please show TI 84 steps

A: Computation of mean and standard deviation:Here, n=600; p̂=0.46; q̂=0.54 (=1−0.46).The mean and stan...

Q: In a study of the accuracy of fast food drive-through orders, Restaurant A had 241 accurate orders ...

A: It is given that Restaurant had 241 accurate orders and 71 are not accurate orders. The total number...

Q: Following are the weights of 8 boxes of cookies, each of which is labeled as containing 16 ounces. A...

A: It is provided that,Sample size (n) = 8Hypothesized population standard deviation (σ0) = 0.1Level of...

Q: A corporation must appoint a president , chief executive officer, coo, cfo. It must appoint a planni...

A: From the given information,The total number of candidates and officers = 11The total number in the p...

Q: The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation...

A: Click to see the answer

Q: If F(x) is the CDF of the standard normal distribution Z~Norm(0,1), show that (a) For 0 ≤ a < b, ...

A: (a)From the given information, F(X) is the CDF of the standard normal distribution.

Q: 4. Suppose a new sample is chosen and you got the following estimated OLS line: predicted birthweigh...

A: Introduction:Effect of scale change of the predictor, on the regression coefficients:Suppose x denot...

Q: I don't understand the the given answer when looking at this chart. When I use the calculator I get ...

A: Let the lower and upper limits are –z and z. It is known that in a standard normal distribution, P(Z...

Q: orubinsinV onob -E 2MAT (02) mottudtuaiQ Isa e) If an owner of a chain of shoe stores intends to pur...

A: Click to see the answer

Q: According to a newspaper, 40% of bicycles stolen in a certain country are recovered. Find the prob...

A: Solution: We are given that 40% of bicycles stolen in a certain country are recovered. Let x be the...

Q: Over the past 100 days, the price of a certain stock went up on 60 days and went down on 40 days. Ex...

A: Any statistical report should provide with the necessary values along with the conclusion, so that t...

Q: suppose an individual was studying temperature's effect on crime rate. The researcher looked at 6 ra...

A: Solution:The sample mean is obtained below:From the given information, number of observations is 6 a...

Q: I don't understand how I find the z-score, without a table, the mean, or the standard deviation.

A: Solution: We are given the blow graph;

Q: Please show TI 84 steps. We don't use standardized table for z score

A: Introduction:According to the Central Limit Theorem, if the sampling distribution of the sample prop...

Q: A hypertension trial is mounted and 12 participants are randomly assigned to receive either a new tr...

A: 1.Hypotheses for the test is given below:

Q: An effect size of .25 would be considered?

A: Solution:The conditions for the effect size are:If d <0.3, then the effect size is small.If 0.3&l...

Q: Please show TI 84 steps

A: Following information are provided for mathematics score,

Q: -1+lne^6x

A: Hey there! You have posted the algebra question under statistics. Please make sure to post the quest...

Q: Given that z is a standard normal random variable, compute the following probabilities P(z ≥ -0.2...

A: Standard normal table:The standard normal table provides the probability value that is less than the...

Q: According to scientists, the cockroach has had 300 million years to develop a resistance to destruct...

A: Obtain the critical value at 95% confidence level:It is given that,Sample mean = 10,693/5,000=2.1386...

Q: A study of 420097 cell phone users found that 134 of them developed cancer of the brain or nervous s...

A: The provided data is,

Q: need answers to questions 9 and 10

A: The tree diagram for the three rolls of the die letting C= {composite number rolled} and N={composit...

Q: How so I solve x+19=0. 3

A: Hello there! You have posted the algebra question under statistics. Please make sure to post the que...

Q: #4: Suppose that X1,... , X7n is an i.i.d. random sample drawn from a U[a, 1] uniform distribution, ...

A: Click to see the answer

Q: Stress test results-For a group of 12 men subjected to a stress test situation, the average heart ra...

A: It is given that mean and standard deviation are 109 and 4, respectively.In the given case,

Q: About 1% of the population has a particular genetic mutation. 400 people are randomly selected.Find ...

A: From the given information,x is the random variable that follows binomial distribution

Q: A random sample of 25 observations yield a mean of 106 and a standard deviation of 12. What is the p...

A: It is given that mean and standard deviation are106 and 12, respectively.By using central limit theo...

Q: Grouping individuals into low, middle and high categories implies a scale of which type? Nominal O...

A: Levels of measurement:The variables can be classified based on the values that can be assigned to th...

Q: Personnel tests are designed to test a job applicant's cognitive and/or physical abilities. A part...

A: It is given that the mean and standard deviation are 74 and 7.4, respectively.

Q: How many ways are there to choose first, second, and third prizes in an art contest with 18 entries?

A: Introduction:According to the permutation rule, if r distinct items are to be chosen from n items wi...

Q: The monthly utility bills in a city are normally distributed with a mean of $100 and a standard devi...

A: Let x is random variable.

Q: How do I find the p value for a hypothesis test

A: The concepts of testing of hypothesis, p-value, and t-test are used here.

Q: Possion Distribution The number of calls received by an office on Monday morning between 8:...

A: Here the random variable X, Number of calls between 8.00AM and 9.00 AM follows Poisson distribution ...

Q: The US population is 13% African American. If you were to take a SRS of 500 Americans, below what p...

A: From the given data The US population is 13% African American

Q: Solve the problem I have a bag of red, green, and blue beads. I reach into the bag and pull out thre...

A: Sample space:The set of all possible outcomes of an experiment is called as sample space. The sample...

Q: The correlation coefficient for this relationship between the X variable and the Y variable would pr...

A: Correlation coefficient:It measures the relationship between two variables. The range of correlation...

Q: X+19=0 3

A: Hello there! You have posted the algebra question under statistics. Please make sure to post the que...

Q: Selecting a card- when a card is drawn from a deck, find the probability of getting d. A king e. A r...

A: Total number of cards in a deck =52.There are 4 kings in the deck.There are 26 red cards in the deck...

Q: In a recent poll, 45% of survey respondents said that, if they only had one child, they would pr...

A: Given datap= 0.45n =130Checking the validity of normal approximation

Q: For a normal population with a mean of m=80 and a standard deviation of 10, what is the probability ...

A: It is given that the mean and standard deviation are 80 and 10, respectively.

Q: Brandon Lang is a creative entrepreneur who has developed a novelty soap item called Jackpot to targ...

A: Note:Hey, since there are multiple sub-parts question posted, we will answer first three sub-parts a...

Q: Which of the following groups of scores exhibits the least variability? 2, 4, 6, 8, 10, 12 2, 3, 4...

A: Enter the data in excel as shown below

Q: An investigator wants to estimate the impact of smoking on the incidence of prostate cancer. The inc...

A: Note: Hi there! Thanks for posting the question. It is not clear from your question that what to cal...

Q: A certain state has the highest high school graduation rate of all states at 85%. a. In a random...

A: Solution: We are given that a certain state has the highest high school graduation rate of all state...

Q: I have attached a picture of the question.

A: Hello there! there are more than one question. According to our policies we cannot answer more than ...

Q: 31 Sample size 31 Sample mean 12.85 mph 7.9 mph Population standard deviation 3.3 mph 2.8 mph 2. At ...

A: It is given that mean and standard deviation are 105 and 15, respectively.

Q: Births are approximately uniformly distributed between the 52 weeks of the year. 1 1 sxs53 f(x) = 52

A: Solution:Continuous uniform distribution:A random variable X is said to have the rectangular distrib...

Q: For a sample of 150 that has a mean of 6540 and a standard deviation =.89, calculate the 95% confide...

A: From the given dataSample size 150, mean 6540 and standard deviation 0.89

Q: Problem 1: If X1, X2, ... , Xn are a random sample from a population with mean u and variance o2, us...

A: Introduction:The method of moments estimator equates the population moments with the corresponding s...