sat 10 sample test

What would be the sampling interval, if a systematic sample of 500 students has to be carried out in a university with an enrolled population of 10,000? => 50 or 20 or 1000 or 500..

10% of the tools produced in a certain manufacturing process turn out to be defective. Find the probability that in a sample of 10 tools chosen at random exactly 2 will be defective. => 1.35 or 0.36 or 0.184 or 0.27..

In a survey it was found that 20% of people living in a society watch channel A. If a random sample of 10 people are selected, then find the probability that at most 3 people in the sample watch channel A. => 0.878 or 0.2 or 0.79 or 0.59..

A population consists of the five numbers 2, 4, 6, 8 and 10. Consider all the samples of size 2 that can be drawn with replacement from the population. Find the mean of the sampling distribution means. Also find the difference between the population mean and mean of th..

A machine produces bolts, of which 10% are defective. Find the probability that in a random sample of 400 bolts produced by the machine, at the most 30 will be defective. => 5.67% or 7.65% or 6.57% or 7.56%..

A machine produces bolts, of which 10% are defective. Find the probability that in a random sample of 400 bolts produced by the machine, 55 or more will be defective. Assume a standard deviation of 6. => 0.970 or 0.0079 or 0.079 or 0.0097..

If 10% of the people in a certain society are members of a health club, then find the probability that, in a sample of 2000, 180 or fewer people are club members. => 42.65% or 57.35% or 92.65% or 7.35%..

A mail order firm professional wishes to estimate the average time taken to deliver the packet(s). How large a sample must she select if she desires to be 90% confident that the true mean is within 3 days of sample mean? The standard deviation of the delivery of packets is known..

In 2002 Football World Cup finals tournament a total of 64 matches were played and an average of 2.52 goals were scored per match. Assume the standard deviation to be 1.5. If a random sample of 10 games is selected, then find the probability that the mean of the sample..

Question: Imagine you are Arun. Write a diary entry about your strange encounter on platform 8. Answer: Dear Diary, Got back to school this afternoon. Another academic year starts tomorrow! I want to share with you one of the strangest things that happened in Ambala station last night..