Mathematics Assignment-Statistics
After taking repeated samples, approximately 95% of the confidence intervals calculated from those samples would contain the true population mean selling price of a used car.
Use the following information to answer the next two exercises: A quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served in the 16 oz. serving size. The sample, mean is 13.30 with a sample standard deviation of 1.55. Assume the underlying population is normally distributed.
116. What is the error bound?
a. 0.87
b. 1.98
c. 0.99
d. 1.7
100. What is meant by the term 90% confident when constructing a confidence intreval for a mean?
A. if we took repeated samples, approximately 90% of the sample would produce the same confidence interval.
B. if we took repeated samples approximately 90% of the confidece interval calculate for those samples would contain the sample mean.
C. If we took repeated samples approximately 90% of the confidence intervals calculated from those samples would contain the true value of the population mean
D. if we took repeated samples the sample mean would equal the population mean in approximately 90% of the sample.
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