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Two percent of a high school's 100 seniors are married. A school survey randomly selects 40 seniors; can you report the mean and standard deviation of sample proportion who are married? Explain.
Find a 90% confidence interval for the mean number of times that the Web server is accessed per minute.- Can we conclude that the mean number of times that the server is accessed per minute is different from 4 at the 10% level of significance?
the probability density function for the diameter of a drilled hole in a metal shop plant is 10e-10x-5 for x gt 5mm.
1. Write a general Metropolis or Metropolis-Hastings algorithm to generate a sample from a target distribution π, where π(x) ∝ x34(1 - x)38(2 + x)125. Use the proposal density as q(x, y) = 1 on the interval [0, 1].
Calculate a 95% confidence interval that estimates the proportion of U.S. families with children who always have the television on when they eat dinner as a family.
what percent of the total population is found between the mean and the z-score given? use the standard normal
What are the W s: Who, What, When, Where, Why?- What population does the researcher think the study applies to?
The following table summarizes data between money spent on gambling and winnings for Robert.
Suppose you continue flipping the coin for a total of k times after picking it and see k heads. Now what is the conditional probability that you picked?
a researcher believes exercise reduces anxiety in women. she identifies a group of women who had not exercised before
Choose the most reasonable measurement. Tyrell read the nutrition label on the back of his frozen dinner. Choose the most reasonable estimate for the amount of sodium in the dinner.
What is the probability that the sample will have between 50% and 60% of the identifications correct? What is the probability that the sample percentage of correct identifications is greater than 65%?
Pepsi. For a sales promotion, the manufacturer places winning symbols under the caps of 10% of all Pepsi bottles. You buy a six-pack.
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