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Previous surveys have found that people tend to quit following their New Years' Resolutions after 7 days on average. We asked a sample of 16 CSUSM students how long they kept their resolutions and the average length was 10 days with an SS of 240.
Assuming a normal distribution, test the hypothesis that CSUSM students hold their resolutions longer than other people with alpha = .01.
a. Specify the null and alternative hypotheses.
b. Report the df, the critical value, the SE, and the test statistic
c. Report your decision in a sentence
d. Summarize the results of your test
Let H stand for heads and let T stand for tails in an experiment where a fair coin is flipped twice.
I love my iPod! (1.1) The rating service Arbitron asked adults who used several high-tech devices and services whether they "loved" using them.
Explain which data techniques you are most familiar with/have used: in a previously done project that involved the collection and analysis of data and explain why the examination of collected data is so important.
Banner Mattress and Furniture Company wishes to study the number of credit applications received per day for the last 300 days.
Create a linear model to predict the number of gallons that will be available in 2005.
suppose we have three fair 6-sided die one colored green one colored black and one colored red. an experiment consists
Use the confidence level and sample data to find a confidence interval for estimating the population mean m.
Using the array in question 1 above, calculate the arithmetic mean with the single most extreme outlier removed. Round the calculation to two decimal places.
Find the most recent weights for the Consumer Prices Index.a. Compare with those given for the Year 2005 (Table 8.14).
The one-sample t statistic for testing: Ho: mu= 40 Ha: mu not equals to 40 from a sample of n = 27 observations has the value t = 2.01.
The weight of many manufactured items is approximately normally distributed. For new U.S. pennies, the mean is 3.11 grams and the standard deviation is 0.05.
What is the underlying variable that indirectly correlates these 2 variables? What other variables could you identify as having an indirect relationship?
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