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Q1) Assume that probability that new medication will cause bad side effect is 0.03. If this medication is given to 150 people, find out the probability which exactly three of them will experience bad side effect?
Q2) Average hourly wage of workers at fast food restaurant is $6.50/hr with standard deviation of $0.45. Suppose that distribution is normally distributed. If worker at this fast food restaurant is chosen at random, determine the probability that worker earns more than $6.75?
Q3) It has been observed that electrical connectors made by Jolt Electrical Supply Company last average of 18.2 months and follow normal distribution with standard deviation of 1.7 months. Jolt agrees to replace any connector which fails within 19 months. Out of 500 connectors sold, how many does Jolt expect to replace, on average?
Complete the table and answer the following questions. Use the .05 significance level.
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
Which of the following Venn diagrams has shaded the event that the contractor wins exactly one of the contracts and evaluate the mean time to complete the entire homework assignment
Does the normal distribution yield a good approximation of the actual results?
Which of the following measures only the strength of a relationship?
What is the proportion of people surveyed that rated the subway system from 3 to 4. What is the proportion of people surveyed rated the Subway System from 1 to 3.
The area under a normal curve is always equal to 1, no matter what the mean and standard deviation are.
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
Three times each year, the procurement manager at Phoenix contacts National\'s marketing department to place a monthly order for each of the coming four months.
A fair coin was flipped three times and landed heads three times. What is the probability of a head on the next toss?
Plan the scatter diagram
Make for more scatter plots comparing GDP growth 1970-2000 to corruption, political rights, rule of law, and socio-political instability
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