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An entomologist writes an article in a scientific journal which claims that fewer than 20 in ten thousand male fireflies are unable to produce light due to a genetic mutation. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms. Be sure to address the original claim.
a) There is sufficient evidence to support the claim that the true proportion is less than 20 in ten thousand.
b) There is not sufficient evidence to support the claim that the true proportion is less than 20 in ten thousand.
c) There is not sufficient evidence to support the claim that the true proportion is greater than 20 in ten thousand.
d) There is sufficient evidence to support the claim that the true proportion is greater than 20 in ten thousand.
What is the probability that an employee selected at random will need either corrective shoes or major dental work?
The distribution of meansdistribution and the distribution of means, showing the t score and cutoff points for significance. (c) Explain your answer to someone who has never taken a course in statistics.
Sample Mean Distribution and T-Interval
LINEAR PROGRAMMING MODELS
Compute standard normal z-score corresponding to value of x = 23. e. Determine P(x 23). G. Determine P(16
Construct a 90% confidence interval for the population proportion, p, in order to test the claim from a confidence interval point of view. What is the best point estimate for p?
What is the probability that the drug will be effective for 2 hours or less?
q1 the weights of packets of cookies produced by a manufacturer have a normal distribution with mean 202 grams and
A mean of 25 inches and a standard deviation of 5 inches. What is the probability that the area receives at least 30 inches of rain in a year?
a sample of 220 items turned out during a given week by a certain process had average weight of 2.46 pounds and
A random sample of 121 checking accounts at bank showed an average daily balance of $280 the standard deviation of the population is known to be $6. Find the standard error of the mean.
If a mosquito lands, it will bite you with probability 0.4, and it will never bother you with probability 0.6, independently of other mosquitoes. What is the expected time between successive bites?
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