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Five students performed a Kjeldahl nitrogen analysis of a protein sample. The following weight % nitrogen values were determined: 15.5, 13.7, 15.7, 15.4, 15.8. What is the value of Gcalculated for
Express each of the following extended sums in the appropriate summation notation.
Identify the null and alternative hypotheses you should form for this test. State each as an explanation and as a math equation. Identify the appropriate statistical test to accept or reject the null
The amount of cola in a 12-ounce can is uniformly distributed between 11.96 ounces and 12.05 ounces. What is the mean amount per can? What is the standard deviation amount per can?
What kind of information you plan to get? (what kind of questions you want to ask? What types of data for those answers?) What are possible sources of error? Explain in detail.
A store is running a promotion during which customers have two options for payment. Option one is to pay 90% of the purchase price two months after the date of sale. Option two is to deduct X% off
A system with 3 components is such that the system fails if at least one of the individual components fail. The probability that a component fails is 0.04. Let G be the event that the system fails.
Real estate apperaiser may use simple (or) stratifief sampling technigue to drawn random sample. Genrate a random sample from all single family homes considering 10 districts people into a single
Find the probability Joe will win all of Moe's money. Write out the transition matrix P for this game (where the state of the system is the amount of Joe's money).
Calculate an estimate for "p" Find an exact 90% CI for "p" Find a large sample approximate 90% CI for "p". Is this CI Valid? Explain.
In the town of New York City, NY, a local supermarket has "Sunday flyers" delivered door to door to advertise current items on sale. During a certain week, the supermarket manager surveyed 300 custo
How many ways are there to distribute 16 identical pieces of candy to five children such that every child receives at least one piece? Generalize to k identical pieces of candy and n children.
How many 10 digit Hexadecimal numbers begin and end with F? How many 8-digit octal numbers begin and end with an even digit?
Suppose that a random variable X has the uniform distribution on the interval [0,1]. Determine the p.d.f. of (a) X2, (b) -X3, and (c) X1/2.
Consider an experiment in which our sample space is S={1,2,3,4,5,6,7}.Also E1={1,2,4}, E2={2,3,4,5,6}, E3={7}. Describe the outcomes in each one of the following events:
A horse race has 12 entries and one person owns 3 of those horses. Assuming that there are no ties, what is the probability that those three horses finish first, second and third?
The following data set gives the scores of 50 students of an engineering exam. The results are shown below. Test at the 1% level of significance that these data follow a normal distribution.
Pieces of vulcanite were examined according to porosity and dimensional defects and the results are shown below. Test the hypothesis that the two criteria of classification are independent. Specify
The amount of overlap is normally distributed with a mean of 1 inch and a standard deviation of 0.2 inches. Assuming the lengths and the amount of overlap are independent of each other, what is the
For a distribution of scores, X=40 corresponds to a z-score of z= -1.00, and X= 42 corresponds to a z-score of z= -.50. what are the values for the mean and standard deviation for the distribution?
The weight of an organ in adult males has a bell-shaped distribution with a mean of 330grams and a standard deviation of 50 grams. Use the empirical rule to determine the following.
Statistics, 1. The following data contains the cost (in cents) per 1-ounce serving for a sample of 7 chocolate chip cookies. 23 36 43 7 43 25 47 Compute the following stats. a) Mean, Media
Formulate hypotheses that can be used to challenge the validity of the claim made by the shareholders group. Assume 85 companies were included in the sample. What is the p value and you conclusion at
The grade appeal process at a university requires that a jury be structured by selecting six individuals randomly from a pool of twelve students and twelve faculty.