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In a 2003, a preliminary study showed that 20% of Americans smoke. At 99% confidence, What would be an appropriate sample size to find out the proportion of American adults who smoke, if you want a margin of error of 2%
the mampm mars company claims that the percentage of brown mampms they produce is 13. a bag containing 100 mampms was
At the 5% significance level, can we infer from this data that there are differences between the three groups?
Conduct a hypothesis test for a single mean at the 5% significant level and advise the management of Marathon Products accordingly. Show the null and alternative hypothesis for this test. Compute the p-value for this test using Excel's TDIST funct..
the number of emergency calls received by the local 911 call center is as follows. using trend projection to forecast
what is the probability that the sample mean will be greater than 10,t hat the sample mean will be greater than 12, the sample mean will be between 8 and 12, and the probability that the sample mean will be less than 7?
A standard normal distribution
The sample size for Boston and San Jose is the same. Why is the 95% confidence interval for the weight of San Jose players wider?
Rickets. Vitamin D is essential for strong, healthy bones. Our bodies produce vitamin D naturally when sunlight falls upon the skin.
the financial department at a large hospital would like to estimate the average outstanding balance owed by patients
a super market analysed its most recent sales and determined the relationship between the way a customer paid for the
The probability that two carriers of cystic fibrosis will have an afflicted child in any given birth is ¼. If two carriers plan to have 5 children, the probability that at least 1 of the 5 will be afflicted with CF is approximately 0.6328.
STA322 Assignment. Describe what type of data analysis would use linear correlation coefficients and line of best fits. Describe the benefits of comparing to a line of best fit
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