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Formerly called as National Botanical Garden, this institute is spread over an area of 75 acres. It has sections like orchid house, palms house, cactus house, portable garden, hydroponicium, vertical garden, a climber pergola and a medicinal plot. There is also a lake for aquatic plants. There is ..

A research scholar wants to complete the research work done by his student. In the data available with him, the class limits are missing. Find the class boundaries of each class whose midvalues are 25, 34, 43, 52, 61 and 70. => Figure 1 or Figure 3 or Figure 4 or Figure 2..

A researcher claims that the variance of the distances traveled by the buses of Indiana in a particular day is greater than that of the buses of Lowa. The journeys of 31 buses of Indiana and 25 for Lowa were observed and the variances were found as 5600 and 3200 respectively. Find the cri..

In a statistical hypothesis testing, a researcher kept the significance level, α = 0.05. Test result can be analyzed as: => there is a 10% chance of not rejecting the research hypothesis when it is true or there is a 5% chance of rejecting the research hypothesis..

A researcher would like to estimate the proportion of all mothers who take black coffee during pregnancy. She would like to be 90% confident that the estimate is within 2.5 percentage points of the true proportion. What sample size is required? => 0.574 or 0.109 or 1,089 or 2,178..

Average weekly charges of child care centers for infants is reported as $198. To test this report, a researcher collected data from 40 child care centers and found the average as $199.80 and standard deviation as $5. At α = 0.01, what will be the conclusion of the researcher..

A researcher wishes to estimate the average daily wage (industrial composite) of industrial workers. A previous study showed that the standard deviation is $23. How large a sample must be selected if he wants to be 99% confident of getting an interval that contains the true mean with a ma..

A researcher selected a sample of 120 milk chocolate bars of 1.6 ounce and found that 90 of them had 230 calories on an average. Find the 90% confidence interval for the true proportion of chocolates with 230 calories. => 67.5% < p < 82.5% or 71% < p < 79% or 69.9% < p <..