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Suppose you work for a company that produces cables, and wish to state that less than 0.1% (0.001) of your cables are defective.
a. How many observations must you take so that you can use the normal approximation?
b. Using Minitab, generate a set of n observations from a binomial distribution with 1 trial and an event probability of 0.002, where n is your answer from
10a. Using the normal approximation, calculate the test statistic and rejection criteria (by hand/calculator).
c. Using your answers to 10b, conduct a hypothesis test to determine if the probability is equal to 0.001 or not equal to 0.001. Given that you know the actual event probability is 0.002, is the answer given by your hypothesis test correct or incorrect?
d. Check your answer by conducting the same hypothesis test using Minitab and the normal approximation. What is the p-value of the test statistic?
Mean=63.6 Standard deviation=2.5 If 36 data points are arbitrarily chosen, determine the probability that mean is less than 64.
A researcher is interested in determining the proportion of public elementary schools that have a mandatory school uniform policy. The researcher randomly sampled n=400 public elementary schools and found that 100 of the schools have a mandatory s..
a prestigious university requires a score of at least 750 on a graduate exam for admission to its mba program. suppose
Between what two values does the P -value of this test fall?
Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level.
If the answer choices for each question are equally likely, find the probability of answering more than 4 questions correctly.
What is the relationship between confidence intervals and hypothesis testing? How are they the same? How are they different?
Assume duration of human pregnancies follow mound-shaped distribution with mean of 266 days and the standard deviation of 16 days.
Using a 1% level of significance, can we say that there is a difference in the average waiting time between the two shops? Find the critical value(s).
let a and b be 2 sets and let pa and pb denote the probabilities assigned to the 2 sets. if we know that a is a subset
Compare 2 moving averages using MSE and compute Exponential smoothing. The subsiquent data which represents demand for company ABC's products for the last 10 months.
Suppose that beer consumption and religious affiliation are not independent of each other. That means that
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