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The post-anesthesia care area (recovery room) at St. Luke's Hospital in Maumee, Ohio, was recently enlarged. The hope was that with the enlargement the mean number of patients per day would be more than 25. A random sample of 15 days revealed the following numbers of patients.
25 27 25 26 25 28 28 27 24 26 25 29 25 27 24
At the 0.01 significance level, can we conclude that the mean number of patients per day is more than 25? Estimate the p-value and interpret it.
In standardized form, the normal distribution a) Has a mean of 0 and a standard deviation of 1 b) Has a mean of 1 and a variance of 0 c) Has an area equal to 0.5 d) Cannot be used to approximate discrete probability distributions
Discuss how scale impacts the interpretation of a graph and name the lowest number of a statistically significant sample size and state the statistically appropriate percentage total of displays
A 95% confidence interval for the average difference between the two reaction times (traditional - LED) was (-171.37, 174.44). Which of the following is the appropriate conclusion?
What signified to you on all of the problems that required a normal distribution that you were to use a normal distribution? Which problems required a normal distribution?
For population with mean of µ=60 and a standard deviation of s=24. Determine the z score corresponding to each of following samples.
1) There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly. a) Determine the standard error of the proportion.
If alternate hypothesis mention that m doesn't equal 4,000, determine the rejection region for the hypothesis test?
Perform hypothesis testing on one variable's data.
Briefly describe co relational research. Name a variable from this study and one from the workplace that might prove to provide a co relational relationship
The average price of a home is reported to be $203,190. Use this price as the population mean, and assume the population standard deviation is 43,890.
Develop the opportunitiy loss table and compute the expected opportunity loss for each product. Determine how much the firm would be willing to pay to a market research firm to gain better information about future market conditions.
For a normal distribution, the probability of randomly selecting a z-score greater than z = -2.00 is p = .0228.
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