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Let X1,..., Xn be a random sample recorded as heads or tails resulting from tossing a coin n times with unknown probability p of heads. Find the MLE pˆ of p. Also using the invariance property, obtain an MLE for q = 1 - p. How would you use the results you have obtained?
Comparing the results from (a) and (e), what happens to the required sample size when we increase the confidence level?
a sump pump in a basement has two battery-operated back-up pumps. in the case of power outage the main sump pump shuts
An ANOVA was run and the results are shown below. At the .05 significance level, is there a difference in the mean prices between the three stores? What is the p-value? Explain why an ANOVA was used to analyze this problem
a sample of 344 subscribers of time magazine shows the mean time spent using the internet is 14.4 hours per week
heights of men on a baseball team have a bell-shaped distribution with a mean of 169 cm and a standard deviation of 5
gymnorhina tibicen mist netted 25 adults from an isolated rural area and 36 from an urban picnic area. she measured the
suppose that a tribal culture was discovered in the south pacific whose language consists of only fourteen letters a d
For a random sample of 12 observations, the sample mean was 407 and the sample standard deviation 6. Using the .01 significance level: State the decision rule.
The true proportion of tall peas (based on a 3:1 phenotypic ratio) is 3/4 or p = 0.75. What is the probability that 5 are tall and 5 are dwarf.
If the average importance were computed for each group, would you expect the sample means to be similar or different? What was the total sample size in this study?
The Mundo Candy Company makes three types of chocolate candy: Cheery Cherry, Mucho Mocha, and Almond Delight. The company produces its products in San Diego, Mexico City, and Managua using two main ingredients: chocolate and sugar.
Compute the standardized slopes for SES and English ability; interpret them, and specify what additional information is learned from the standardized slopes that cannot be learned from the unstandardized slopes.
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