f test sample

Find the F-test value for testing the difference between two population variances. The data shows the two samples from each of the populations. => 1.11 or 0.63 or 2.38 or 2.16..

Check whether the population variances differ significantly at 90% confidence. Also find out F-test value. The data relating to two samples from those populations are shown in the table. Sample size Sample variance 25 7 16 5.6 => 2.11, do not differ or 2.29, ..

The variance of the number of pages of a sample of 20 women's fitness magazines is 62 and the variance of the number of pages of a sample of 15 sports magazines is 23. At 90% confidence level, find the F-test value and check whether variances differ significantly. => 2..

refers to the process of taking instantaneous values of the message signal at regular intervals (in the case of uniform sampling.) This makes the time-frame (of the analog signal) discrete. Most pulse systems are based on sampling of the information signal amplitude at periodi..

A random sample of the number of schools in various regions is shown. At α = 0.10, find the F test value and test the claim that the mean number of schools are the same. => 2.7, not the same or 3.84, the same or 3.84, not the same or 2.7, the same..

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 ..

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. => 2.99, not the..

A random sample of the number of students accessing the internet during the working hours of three different schools is given. At α = 0.05, find the F test value and is there evidence to conclude a difference in means? => 0.19, all the means are same or 0.19, mea..

The average annual temperature of a place is 68°F and the standard deviation is 10°F. If a random sample of 36 days is taken, then find the probability that the mean sample temperature is less than 70°F? => 89.62% or 39.62% or 10.38% or ..

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 the groups? => 258.6..