On average, 30 minutes TV-shows have 22 minutes of actual pr…

On average, 30 minutes TV-shows have 22 minutes of actual program. Let’s assume the probability distribution for number of minutes of actual program is uniformly distributed from a low of 18 minutes to high of 26 minutes.   What is the probability the show will have between 21 minutes and 25 minutes of programming?

A doctor is called to see a sick child. The doctor has prior…

A doctor is called to see a sick child. The doctor has prior information that 90% of sick children in that neighborhood have the flu, while the other 10% are sick with measles.   A well-known symptom of measles is a rash.  Assume that the probability of having a rash if one has measles is 95%. However, occasionally children with flu also develop rash, and the probability of having a rash if one has flu is 8%.   Upon examining the child, the doctor finds a rash. What is the probability that the child has measles?

An independent research was made to calculate the mean weigh…

An independent research was made to calculate the mean weight of elder people in Russia. 50 men and women were interviewed for this research. Calculate the sample median, mode, and mean of the data. Explain how these three measures of location describe different features of the data. All values are in kg. (You will use this data set to answer several questions, Once you entered into calculator Do not delete it).   Calculate the Sample Variance.

A sociologist focusing on popular culture and media believes…

A sociologist focusing on popular culture and media believes that the average number of hours per week (hrs/week) spent using social media is greater for women than for men. Examining two independent simple random samples of 100 individuals each, the researcher calculates sample standard deviations of 2.3 hrs/week and 2.5 hrs/week for women and men respectively. If the average number of hrs/week spent using social media for the sample of women is 1 hour greater than that for the sample of men, what conclusion can be made from a hypothesis test ?