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An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range:
Comment on any interesting features. (Select all that apply.)
There is little or no skew.
There are no outliers.The data is strongly skewed.
The data appears to be centered near 438.
The data appears to be centered near 428.
There is one outlier.
(c) Calculate a two-sided 95% confidence interval for true average degree of polymerization. (Round your answers to two decimal places.)
a random sample of 35 gmat scores for applicants to an mba program has a mean score of 479. the researcher is
q1. an investigator hypothesizes that cholesterol level in children might be affected by educating their
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What is the probability that a cereal would be high calorie, given that it is high fiber? In other words, what is P (high calorie, given high fiber)?
Scores range from 0 to 200. The mean score for students who live on the west coast is about 115. Construct a 90% confidence interval for the unknown mean of the students on the east coast.
suppose two random variables x and y are independent with x n24 and y n03. w x-y2a. find the distribution of w.b.
What is the difference between a null hypothesis and an alternate hypothesis? Explain what is meant by the critical value of a statistical value.
The probability that a new advertising campaign will increase sales is assessed as being 0.60. The probability that the cost of developing the new ad campaign can be kept within the original budget allocation is 0.50.
Identify the null hypothesis, alternative hypothesis, test statistic, P-value and conclusion about the null hypothesis. Use the P-value method.
a student club has 40 members including stacy and tom.a in how many ways can the club elect different individuals to
Probability based on a random experiment - What is the probability, without looking in the drawer
The average score for the sample is M = 76. For the general population of college students, writing scores form a normal distribution with a mean of µ = 70.
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