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The no. of grams of carbohydrates contained in 1-ounce servings of randomly selected chocolate and non chocolate candy is listed here. Is there sufficient evidence to conclude that the variance in carbohydrate content varies between chocolate and non chocolate candy? Use a=0.10.
A sample is taken prior to a major election of likely voters. The null hypothesis is that the votes will be split 50/50. One candidate gets 54% of the support in the sample and the p-value for this sample is calculated to be 0.12.
Address additional types of quantitative research recommendation to enhance the validity and reliability of the research findings.
Let X be the number of calls you need to make until you find your friend. Give the probability mass function for X. How many calls do you expect to make until you find your friend?
Measure of average you might be inclined to report and in what sense each value can be considerd typical. (A) as vice president responsible for collective burgaining.(B) as the president the employee burgaining unit.
Assume the gasoline mileage of this mileage is approximately normally distributed with a standard deviation of 3.2 miles per gallon. What proportion of 2005 Honda Insights with automatic transmission gets over 60 mpg on the highway?
The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50. What is the probability that a student uses fewer than 600 minutes?
x and s are equal to 3.7 and 0.5, respectively, find a 99% confidence interval for the mean pH in rainfall and interpret the interval.
What sample size would be necessary to estimate the true weight with an error of +/- 0.03 grams with 90 percent confidence?
Prices (in dollars) were recorded for a sample of 60 randomly selected grocery items at each of the three supermarkets. In order to reduce item-to-item variation, the prices were recorded for each item on the same day at each supermarket. Identify..
a group of 5 boys and 15 girls is lined up in random order .a what is the probability that the person in the 4th
A Pew research study recently randomly selected two groups of people, men and women and asked them if they agree with the following statement:
Given the sample size of 36 bolts with a mean of 3 inches and a standard diviation of .3. What is the 99% confidence interval for the true mean length of the bolt.
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