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Test the given problem using independent sample z -test
A candy company wants to identify whether or not the size of its' candy bars are the same length from one day to another. On day 1 they sample 52 candy bars with an average mean of 5.4 inches and on day 2 they sample 52 bars again with and average mean of 5.6 inches. Both days have sample standard deviations of 3.4. Is the average mean of size different from day 1 to day 2?
Developing project network using AOA that determines completion times.
Find the probability that a randomly selected employee earns less than $5.43.
For a standard normal distribution, findout the percentage of data that are among 3 standard deviation below the mean also1 standard deviation above the mean.
To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.
Carry out the suitable calculations to test for effect modification. Interpret your results.
Here are fifty observations on the weight of tea bags. Calculate the Standard Deviation and Variance.
For an arch chosen at random in Arches National Park, use the preceding information to estimate the probability that the height of the arch poening is:
Each party's position must be statistically sound. Include as suitable graphs, computations, and statistical tests.
Compute descriptive statistics for each stock and the S&P 500. Comment on your results. Which stocks are the most volatile? Compute the value of beta for each stock. Which of these stocks would you expect to perform best in an up market? Which..
Health and Nutrition Examination Survey, suppose that weights of men now are normally distributed with mean of m =172 pounds and standard deviation of s = 29 pounds.
The heights in centimeters of 5 students are: 165, 175, 176, 159, 170. The sample median and sample mean are respectively:
Plan the scatter diagram
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