problems with internet transactions

The number of ATM transactions of a bank per day were recorded at 12 locations in a city. The mean of the sample was 88.5 transactions, with a sample standard deviation of 42. Find the 98% confidence interval of the true mean. => 19.06 < μ < 157.94 or 78.99 < μ &l..

In a school, 45% of the students have access to internet from their houses. If 9 students are selected at random, then find the probability that at least 7 students can access internet from their houses. => 0.0498 or 0.041 or 0.0087 or 0.95..

The scatter plot shows the number of vehicle transactions in different quarters of the year 1995. What is the difference between the number of vehicle transactions in the 2 nd quarter and the 4 th quarter? => 150 or 60 or 50 or 40..

The number of ATM transactions of a particular bank recorded at 12 locations in a city on a day are as follows. 24, 42, 210, 69, 38, 72, 59, 44, 96, 21, 318, 66 Find the median and mean of the number of transactions. Which is greater, median or mean? => 62.5, 88.25, mean or 66, ..

The probability that a student has access to Internet from his/her home is 40%. If a random sample of 100 students is selected, then find the probability that between 50% and 60% of the students have access to Internet from their home. => 2.61% or 0.026% or 97.39% or 26.1%..

Internet services reported that 33% of the secondary school principals use internet email more than once a day either in home or school. From a random sample of 120 secondary school principals, it was found that 42 use internet email more than once a day. Is there enou..

The number of Internet hosts (in millions) during the years 1991 to 1996 is represented in the line graph. What trend does the graph show? => No trend or Increasing trend or Decreasing trend..

The number of internet hosts (in millions) during the years 1991 to 1996 is represented in the line graph. What trend does the graph show? => Increasing trend or No trend or Decreasing trend..

The examination results will be declared sometime between 10 A.M. to 2 P.M. on Internet. To know the result Sam went to the Internet caf at 11 A.M. and came out at 12-noon. What is the probability that Sam sees the exam results? => 1 2 or 1 4 or 1 5 or 1 3..

Select the statements where descriptive statistics is used. I. Increase in the annual sales of hamburgers in the district was 30% of the sales of previous year. II. Infant morality rate in an underdeveloped country registered a drop of 10% during the last decade. III. Defence accounted 30% of the a..