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A toothpaste manufacturer wants to establish that their sales have more than 42% of the market. Set up the null and alternative hypotheses for the toothpaste manufacturer. Out of a random sample of 40 toothpaste purchases, 19 are from this manufacturer. Can you conclude the toothpaste manufacturer's claim at α = 0.024? (Use p-value approach.)
is there a relationship between gender and the type of car driven? a random sample of 1000 adults was obtained. the
Suppose a bag contains 7 red chips, 8 black chips, and 3 green chips. You draw two chips (without replacement) from the bag. Find the probability that you drew a red chip ?rst and then a black chip second.
question a pharmaceutical company manufactures large batches of analgesic caplets which are designated to contain 200
1. suppose an experiment has five equally likely outcomes e1 e2 e3 e4 e5. assign probabilities to each outcome and
To test whether the population standard deviation differ significantly using Chi-Square test.
Equation of the regression line - Evaluate the equation of the regression line and Find y' when x=47 years.
What is the Bayes estimator of λ and what is a 95% credible set for λ that WinBUGS outputs
find The probability that it is at least two hours until the first failure occurs, The probability that it is no more than six hours until the first failure occurs and The average time to the first failure.
Find a 99% confidence interval estimate of the proportion of people who say that they voted.
I have computed an analysis of variance for three groups with 10 observations per group. Evaluate the degrees of freedom for the F test
Formulate the null and alternative hypothesis to test the claim that one-litre cartons of milk are being underfilled. Conduct a hypothesis test for a single mean using α = 0.05.
Very satisfied customers give the XYZ-Box video game system a rating that is at least 42. In the context of this situation, interpret making a Type I error; interpret making a Type II error.
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