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1.) If the population is normally distributed then the sample mean is also normally distributed even for small sample size.
True or false?
2.) In applying the Rule of Addition in Probability, the important consideration is whether they are mutually exclusive or not.
An assembly line turns out 10% deffectives. Determine an acceptance number and sampling plan for samples of size 14 and a producers risk of 3%. (AQL = 10)).
You perform a one sample mean hypothesis test on a random sample of data and observe a p-value of 0.2157. What is the appropriate conclusion? Conclude at the 5% level of significance.
The sample information is reported below. At the .10 significance level can we conclude that there is a difference in the amounts quoted?
The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 370 grams and a standard deviation of 15 grams. Find the weight that corresponds to each event:
A pair of dice is rolled. What is the probability of each of the following? (Round your answers to three decimal places.)
Citing significant strides in math and science by women of all ethnic backgrounds, the College Broad says that the male-female gap on Scholastic Assessment Test scores continue to narrow among high school students.
Would a normal model be appropriate to describe the distribution of sale prices?
We code middle-aged Americans as 1 and senior citizens as 0, the logistic regression model for senior citizens
Of the nine members of the board of trustees of a college, five agree with president on a certain issue. The president selects three trustees at random and asks for their opinions. What is the probability that at least two of them would agree with..
Suppose we wish to test the hypothesis H0: = µ2 vs. H1: = µ≠2 We find a two sided p-value of .03 and a 95% CI for µ of (1.5, 4.0) Are these two results possibly compatible? Why or why not?
a) yes, because the tst value -3.46 falls in the noncritical region. b) no, because the test value -1.98 falls in the critical region. c) yes, becasue the test value -3.46 falls in the critical region. d) no because the tst value -1.98 falls in the n..
Calculate p value? What is the critical value?
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