difference between random sample and simple random sample

From a fruit bowl containing a banana (B) and an apple (A), a fruit is picked at random, replaced in the bowl and another fruit is picked. Find the sample space. => BB or BB, BA, AA or AA, AB or AA, AB, BA, BB..

The mean score on a standardized test is 100 with a standard deviation of 8. A random sample of 48 scores was found to have a mean of 98. Find the 95% confidence interval. => The interval is between 97.75 and 102.25 or The interval is between 1.15 and 100 or The interval is betw..

A machine produces bolts, of which 10% are defective. Find the probability that in a random sample of 400 bolts produced by the machine, between 35 and 45 will be defective. Assume a standard deviation of 6. => 0.5640 or 0.6405 or 0.4605 or 0.4560..

The percentage of households having internet connection is 45%. In a random sample of 500 households what is the probability that fewer than 200 will have internet onnections? => 9.1% or 9.01% or 1.09% or 1.9%..

In a batch of 5,000 wrist watches, there are on an average 10 defective ones. If a random sample of 500 is selected, then what is the probability of two defective ones? => 0.27 or 0.36 or 0.184 or 1.35..

A bag has red, blue, and green balls. A ball is picked and a coin is tossed at random simultaneously. Find the sample space from the tree diagram. => (RH, HT, BH, BT, GH, GT) or (RH, RT, BH, BT, GH, GT) or (RH, RT, BG, BT, GH, GT) or (RH, RB, BH, BT, GH, GT)..

A bag has red, blue and green balls. A coin is tossed and a ball is picked at random simultaneously. Find the sample space from the tree diagram. => (RH, HT, BH, BT, GH, GT) or (RH, RT, BH, BT, GH, GT) or (RH, RT, BG, BT, GH, GT) or (RH, RB, BH, BT, GH, GT)..

The population survey in 2001 stated that 37% of urban workers held multiple jobs in order to earn extra money. From a random sample of 200 urban workers taken, it was found that 70 of them held multiple jobs. Find the p -value for the test. Does the sample proportion ..

Which of the following are the assumptions for two-way ANOVA? I. All samples are drawn from normally distributed populations. II. All populations have a common variance. III. The groups must be equal in sample size. IV. Within each group, the observations were sampled ..

The sample consists of pulse rate measurements of 30 workers placed at random into 3 different groups, which performed different work tasks. At α = 0.01, find the F test value and is there a significant difference in the mean pulse rate among ..