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According to the Center for Disease Control (CDC), 49.4% of American adults 18 years old and over meet their Physical Activity Guidelines for aerobic physical activity. The owners of a gym want to know if the proportion of their members who meet these requirements is different from the national proportion given by CDC. They take a random sample of 40 members and 28 meet the CDC's guidelines. At 1 % level of significance, is there sufficient evidence that the proportion of their members who meet these requirements is different from the national proportion given by CDC? (Define the parameter of interest, state the null and alternative hypotheses, compute the value of the test statistic and the p-value, state your decision and give the conclusion in the context of the study)
What is the probability that the variable will take the value 2? What is the mean of the distribution?
Assume that the person holding the hand is asked to "Name an ace in your hand" and answers "The ace of hearts." What is the probability that he has a second ace?
Analyze the process of statistical quality control and determine which part of the process would be most difficult and what steps could be taken to mitigate the anticipated difficulty.
question in order to determine an interval for the mean of a population with unknown standard deviation a sample of 61
Distances from the past year and carry out a hypothesis test for its suspicion. State the null hypothesis and the alternative hypothesis that it would use for this test.
Then comment on the effectiveness of the presentation: Were the frequency distributions used effectively to report the results? Why or why not?
consider the experiment of selecting a playing card from a deck of 52 playing cards. each card corresponds to a sample
What is the probability that the auditor will select an individual return from the 1040A, Income Under $25,000 category? What is the probability that the selected return did not use Schedule C?
question the average wind speed in casper has been found to be 12.7 mph and in tucson it has been found to be 6.2 mph.
a brewerys filling machine is adjusted to fill bottles with a mean of 31.2 oz. of ale and a variance of 0.003.
use the normal distribution of sat critical reading scores for which the mean is 507 and the standard deviation is 114.
question 1. examined the effect of body position on blood pressure 32 participants had their blood pressures measured
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