Please review the presentation,
A recent study on teenage pregnancy indicates that 5% of the female population will get pregnant sometime in their teenage years. The study stated that teenage pregnancies occur independently of one another. Suppose 10 teenage women were randomly selected. Find the probability that at least two of these women will get pregnant some time in […]
weight-loss clinic advertised that last month its patients, on average, lost 7
Statistics – Please show steps: Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a “need for closure scale” to a group of students enrolled in an introductory psychology course. The “need for closure scale” has scores ranging from 101 to 201. For the
The Bureau of Labor Statistics American Time Use Survey showed that the amount of time spent using a computer for leisure varied greatly by age. Individuals age 75 and over averaged .20 hour (12 minutes) per day using a computer for leisure. Individuals ages 15 to 19 spend 1.2 hour per day using a computer […]
The table below shows the results of a survey in which 141 men and 145 women workers ages 25 to 64 were asked if theyhave at least one month income set aside for emergencies.Total148138286Find the probability that a randomly selected worker has one months income. Given that it randomly selected work is male find the […]
Seven lamps are located as shown in Figure 1. Each lamp can fail with probability q,independently of all the others. The system is operational if no two adjacent lamps fail. Obtain anexpression for system reliability.
Now assume that Dr. Peterson’s variables were measured as: 1) the number of times officers wore body cameras in a month; and 2) the number of use of force incidents officers committed in a month. What type of statistical test should he use? Chi-square Correlation (Pearson’s r) T-test ANOVA Finally, assume that Dr. Peterson’s variables were measured as: 1) the […]
Suppose you are working with a data set that is normally distributed, with a mean of 200 and a standard deviation of 48. Determine the value of x from the following information. (Round your answers and z values to 2 decimal places.) (a) 90% of the values are greater than x. (b) x is less than 13% of the values. (c) 21% of the values are […]
The table below shows the results of a survey in which 141 men and 145 women workers ages 25 to 64 were asked if they at least have one month income set aside for emergencies. Female. Total148138286Find the probability that a randomly selected worker has one month income. (Round to nearest thousand)Given that a random […]
