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To estimate the proportion of voters in favor of a controversial proposition, a simple random sample of 1200 eligible voters was contacted and questioned. Of these, 552 reported that they favored the proposition. Estimate the population proportion in favor and give a 95% confidence interval for population proportion. The number of eligible voters in the population is approximately 1,800,000
researchers investigated the issue of race and equality of access to clinical trials. the table below shows the
Egyptians watch an average of 2.5 hours of television per person per day. If the standard deviation for the number of hours of television watched per day is 1.6 and a random sample of 225 Egyptians is selected, the mean of this sample belongs to a..
a brewerys filling machine is adjusted to fill bottles with a mean of 31.1 oz. of ale and a variance of 0.007.
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were:
given are five observations collected in a regression study on two variables.x12691320y1718926231. what percentage of
Philadelphia is conducting a study on the characteristics of tourists who drive to Eagles football games. Previous studies indicate that approximately 70% of all game attendees are people who decided to drive from out of town
a manufacturing of window frames knows from long experience that 5 percent of the production will have some type of
A recent survey of frozen convenience meals found a correlation of r=0.768 between calories and fat content in the sampled meals.
the mean temp in la is 66.3 degrees f with a standard deviation of 8 degrees f. the temp readings are normally
With a selling price of 40 dollars each, how many pool cues must be sold to break even? What would the total revenue be at this break even point?
ten juniors and five seniors have applied for two open student council positions. school adminitrators have decided to
a sample of 66 women over the age of 50 used the new cream for 6 months. of those 66 women 30 of them reported skin
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