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Question 1: Each of the following proportions is based on survey responses. For each proportion, use the ±2 rule of thumb to determine the 95 percent confidence interval.
A. When asked if they are satisfied with their financial situation, .29 said "very satisfied" (n = 121).
B. When asked if people can be trusted, .32 said "yes" (n = 100).
C. Of the individuals in a survey, .40 still live in the same city they lived in when they were 16 years of age (n = 225)
Develop a Pareto chart to identify the more significant types of rejection.
Develop a sales forecast for each store for December Plot the data for each store.Use data in table.
Develop 95% confidence intervals for the proportion of all students, the proportion of male students, and the proportion of female students who were involved in some type of cheating.
What is the correlation between pre-test scores and post-test scores? Assuming the obvious directional hypothesis (i.e., that those who score highly at pre-test tend to score highly at post-test), is the correlation statistically significant?
Use the Excel Analysis ToolPak to find the linear correlation coefficient for the systolic and diastolic measurements.
1) A coin is flipped 14 times. Use the normal approximation to the binomial distribution to calculate the probability of a total of 4,5, or 6 heads. Compare this to the binomial probability.
State the five types of central tendency in general use. Which of these are most frequently used in SPC work and calculate the median for the group of results tabulated below: 1,3,4,6,7,9,11,14,16,17,18.
Identify the type of study proposed and indicate its specific strengths and weaknesses
What are the possible values of this random variable and draw the density function.
Compute the mean and SD of the probability of the mean and determine the test statistic
A graphical method, solve the simultaneous equations - A graphical method, solve the quadratic equation
Develop a 95% confidence interval estimate of the population mean sales price and population mean number of days to sell for Gulf View condominiums. Interpret your results.
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