state test sample

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. State the null hypothesis and alternative hypothesis. => H o : The mean score = 100, H a : The mean score ≠ 100 or H o : The mea..

State of the System and State Functions - State of the system implies the conditions of its existence. In order to understand it, let H 2 O be considered as a chemical system. H 2 O can exist in three physical states; ice, water and steam depending upon the c..

The Liquid State - The liquid state lies between the gaseous and the solid state. Liquids are neither completely disordered nor completely ordered. The cohesive forces between the liquid particles are strong enough to keep them together but these particles do not occup..

A random sample of the number of patients treated each day from hospitals in a state is shown. At α = 0.05, find the F test value and test the claim that the mean number of patients treated each day are the same in all parts of a state. => 2.9..

A random sample of the number of beds in hospitals of three different states is given. At α = 0.05, find the F test value and test the claim that the average number of beds are the same. => 0.65, same or 0.65, different or 3.37, same or 3.37, different ..

Educational survey reports that the state average for the number of students per faculty member in schools is 12.3. From a random sample of 20 schools of the state, the mean was found as 12.5 and the standard deviation as 0.6. At α = 0.10, test the educ..

The report of a municipal corporation states that the average monthly electricity bill of a household in the city is more than $73. To test this report, a researcher selected a sample of 100 residential electricity bills and found the mean as $74.50 with a standard dev..

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 p..

A pizza shop conducted a study to find out whether age has anything to do with the type of pizza preferred. A random sample survey yielded the result as shown. At α = 0.05, find the chi-square test value. State whether the pizza ordered is related to the age of t..

A four year public college or university charged a tuition fees of $10,903 in the year 2000, on an average. In 2001, a random sample of 10 four year public colleges or universities had a mean of $11,418 with a standard deviation of $650. At α = 0.01, find the test value an..