In a random sample of eight cell phones, the mean full retail price was $539.00 and the standard deviation was $150.00. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 90% confidence interval for the population mean µ. Interpret the results. Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. % of all random samples of eight people from the population of cell phones will have a mean full retail price (in dollars) that is between the interval's endpoints. O B. With % confidence, it can be said that the population mean full retail price of cell phones (in dollars) is between the interval's endpoints. OC. It can be said that 95 % of the population of cell phones have full retail prices (in dollars) that are between the interval's endpoints. O D. With % confidence, it can be said that most cell phones in the population have full retail prices (in dollars) that are between the interval's endpoints.

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Angles

In mathematics, angles constitute a very important part. Just like the concept of lines, an angle is a necessary figure that is used for measurement. How do you define its formation? It is formed when two or more lines meet at a point. The point at which two or more lines meet is known as the vertex. When the lines get inclined at this point, they do form various angles. Angles are measured from the vertex in terms of degrees.