Find the probability.The random variable x is the number of…
Find the probability.The random variable x is the number of houses sold by a realtor in a single month at the Sendsom’s Real Estate office. Its probability distribution is as follows. Find the probability that a realtor sells more than 4 houses in one month.
Read DetailsFind the indicated probability. Assume that the weights of q…
Find the indicated probability. Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. A vending machine will only accept coins weighing between 5.48 g and 5.82 g. What percentage of legal quarters will be rejected?
Read DetailsFormulate the indicated conclusion in nontechnical terms. Be…
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. The owner of a football team claims that the average attendance at games is over 794, and he is therefore justified in moving the team to a city with a larger stadium. Assuming that a hypothesis test of the claim has been conducted and that the decision is failure to reject the null hypothesis, state the conclusion in nontechnical terms.
Read DetailsOriginal claim: The mean pulse rate (in beats per minute) o…
Original claim: The mean pulse rate (in beats per minute) of a certain group of adult males is 73 bpm. The hypothesis test results in a p-value of 0.0096. Assume a significance level of α = 0.01. State a conclusion about the null hypothesis.
Read DetailsFind the z-score.The mean height of a basketball team is 6.3…
Find the z-score.The mean height of a basketball team is 6.3 feet with a standard deviation of 0.2 feet. The team’s center is 6.9 feet tall. Find the center’s z-score. Is his score unusual? (Consider unusual values are less than a z score of -2 or greater than a z score of 2.)
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