A researcher believes that 5%
of pet dogs in Europe are Labradors.
If the researcher is right, what is the probability that the proportion of Labradors in a sample of 806
pet dogs would be greater than 4%? Round your answer to four decimal places.
P(Proportion greater than 4%)
= P(z > -1.30)
= 0.9036
A researcher believes that 5% of pet dogs in Europe are Labradors. If the researcher is right, what is the probability t...
A researcher believes that 7% of pet dogs in Europe are Labradors. If the researcher is right, what is the probability that the proportion of Labradors in a sample of 494 pet dogs would be greater than 9%? Round your answer to four decimal places.
A researcher believes that 8% of pet dogs in Europe are Labradors. If the researcher is right, what is the probability that the proportion of Labradors in a sample of 437 pet dogs would differ from the population proportion by greater than 3%? Round your answer to four decimal places.
A researcher believes that 2% of pet dogs in Europe are Labradors. If the researcher is right, what is the probability that the proportion of Labradors in a sample of 401 pet dogs would be less than 4%? Round your answer to four decimal places.
A researcher believes that 8% of pet dogs in Europe are Labradors. If the researcher is right, what is the probability that the proportion of Labradors in a sample of 535 pet dogs would differ from the population proportion by less than 3%? Round your answer to four decimal places.
A director of reservations believes that 8% of the ticketed passengers are no-shows. If the director is right, what is the probability that the proportion of no-shows in a sample of 730 ticketed passengers would be greater than 9% ? Round your answer to four decimal places.
A director of reservations believes that 7% of the ticketed passengers are no-shows. If the director is right, what is the probability that the proportion of no-shows in a sample of 540 ticketed passengers would differ from the population proportion by greater than 3%? Round your answer to four decimal places.
A bottle maker believes that 12% of his bottles are defective. If the bottle maker is correct, what is the probability that the proportion of defective bottles in a sample of 635 bottles would be less than 11%? Round your answer to four decimal places.
A bottle maker believes that 15% of his bottles are defective. If the bottle maker is accurate, what is the probability that the proportion of defective bottles in a sample of 561 bottles would be less than 11%? Round your answer to four decimal places.
4. A researcher measures the amount of sugar in several cans of the same soda. The mean is 39.01 with a standard deviation of 0.5. The researcher randomly selects a sample of 100. a. Find the probability that the sum of the 100 values is greater than 3,909. (Round your answer to four decimal places.) b. Find the probability that the sum of the 100 values falls between the numbers 3900 and 3910. (Round your answer to four decimal places....
Based on historical data, your manager believes that 33% of the company's orders come from first-time customers. A random sample of 107 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is greater than than 0.2? Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations. Answer = (Enter your answer as a number accurate to 4 decimal places.)