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Given the following situation, how would you use Megastat to answer this question.
Question 1:
The percentage of students in private school is about 11%.
In a sample of 450 students from different countries, we found that the number of students in private school in that sample was 50 students.
find the percentage of private school students with 95% confidence ?
What is the relation between this percentage with the 11%?
Find the probability that a randomly selected bolt can be used (either immediately or after being cut). Find the probability that fewer than 15 out of 20 bolts can be used.
The distribution of lifetimes for a certain type of light bulb is normally distributed with a mean of 1000 hours and a standard deviation of 100 hours. Find the 33rd percentile of the distribution of lifetimes.
Give three logically possible directions of casualty, indicating for each direction whether it is a reasonable explanation for the correlation in light of the variables involved (and why).
We select four flights from yesterday for study. What is the likelihood all four of the selected flights arrived within 15 minutes of the scheduled time?
Indicate whether the data generated from this study will be considered cross-sectional or time series. Explain Why and what level of data measurement is obtained from this question? Explain.
I understand how to do a time series graph with one variable versus time in years, but I am not sure how to graph if the time is in months with more than one variable with a scatter plot.
Barron’s reported that the average number of weeks an individual is unemployed is 17.5 weeks (Barron’s, February 18, 2008). Assume that for the population of all unemployed individuals the population mean length of unemployment is 17.5 weeks and that..
Draw a simulation experiment for car agency and simulate using fleet of four rental cars for 10 days.
A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek.
The possible responses to the question "How would you rate our quality of service?" with 1=excellent, 2=good, 3=fair, 4=poor, describes what type of variable?
The president of the wholesale distributor is concerned about the possibility of stockouts causing a loss of customer confidence and loyalty and is interested in maintaining safety stock in inventory to prevent potential stockouts.
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
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