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A local business person is going to donate $1000 to the favorite charity of a randomly selected graduate. What is the probability that the graduate selected will be a male who is not a member of a
A satellite has a mass of 5986 kg and is in a circular orbit 4.03 × 105 m above the surface of a planet. The period of the orbit is 2.3 hours. The radius of the planet is 4.34 × 106 m. W
A biologist estimates that 50% of deer in the region carry a certain type of tick. for a sample of 300 deer selected at random, what is the chance that 155 or fewer deer have this tick?
a) Compute the Marginal Probabilities and the Joint Probabilities. b) Compute: P(L), P(L|M) , P(F|L'), P(M or L)
In a shipment of 59 vials, only 18 does not have hairline cracks. 6 vials are randomly selected from the shipment. Find the probability that at least one of the 6 selected vials has a hairline crack
Construct a grouped frequency distribution and a cumulative frequency distribution with 4 classes.
Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data.
Before 1918, in a random sample of 13 wolves spotted in the region, what is the probability that 10 or more were male?
Determine whether the mean life of a large shipment of lightbulbs is equal to the specified value of 375 hours. State the null and alternate hypotheses.
A production process produces 90% non defective parts.Asample of 5 parts from the production process is selected.What is probability that the sample will containe no deceftive parts, what is probab
A second SRS of size 100 has a mean 6.97 minutes. After many SRS, the many values of the sample mean follow the Normal distribution with mean 7.11 minutes and standard deviation 0.074 minute.
Insurance companies track life expectancy information to assist in determining the cost of life insurance policies. In this context, describe the Type II error possible. How might such an error impact
Is the estimate from the participants significantly higher than the actual number (µ = 3.1)? Use a one-tailed test with = .05.
A study showed that the average number of hours children in the U.S. watch television each day is 4 hours with a standard deviation of 1.6 hours. If a group of 81 children is selected at random, wh
Describe the claim, the experiment, the test statistic, and clearly state the null and alternative hypotheses. In fact, the outline of a good response looks like this.
What is the probability that the person will be hospitalized for a drug-related problem, given that the person has received the PMI sheet?
Assuming that the 1000 votes counted so far constitute a random sample, can the candidate belonging to party X be projected as the winner.
the two green slots belong to the house. Because the probability of winning $2 is 18/38, the mean payoff from a $1 bet is twice 18/38, or 94.7 cents. 14. What does the law of large numbers tel
An airline company is considering a new policy of booking as many as 278 persons on an airplane that can seat only 270. Estimate the probability that if the company books 278 persons. not enough seats
Assume the mean must stay at 45 grams, but the company can alter the standard deviation. Use a sketch to decide how the company can proceed if they want to reduce this proportion by changing the sta
Among the 230 high school seniors in his random sample, 159 believe that "getting rich" is an important goal. Can he conclude, at the 0.05 level of significance, that the proportion has indeed chang
A 90% confidence interval estimate for a population mean was computed to be (38.2, 59.4). Determine the mean of the sample, which was used to determine the interval estimate .
The average electric bill in a residential area is 72 dollars for the month of April. The Standard deviation is 6 dollars. If the amounts of the electric bills are normally distributed, find the pr
A polling firm has been hired to do a survey of the registered voters in California. It is believed that 54% of the registered voters in the state will vote yes on a particular proposition that will
An artifact is discovered at a certain site. If it has 46% of the carbon-14 it originally contained, what is the approximate age of the artifact to the nearest year? (carbon -14 decays at the