EASY
Earn 100

List out the properties of t-distribution

Important Questions on Tests Based on Sampling Distributions-I

EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
A random sample of 10 packets containing cashew nuts weigh (in grams) 70,120,110,101,88,83,95,98,107,100 each. Test whether the population mean weight of 100 grams?
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
 Define student’s t-statistic
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
A sample of 16 units are taken for testing a hypothesis concerning the mean of a normal population. Then the degrees of freedom of the appropriate test statistic is
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Explain the testing procedure to test the normal population mean, when population variance is unknown
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Write the standard error of the difference between sample means.
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
The number of degrees of freedom for the test statistic t=(x¯−μ)s/n is
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
A random sample of ten students is taken and their marks in a particular subject are recorded. The average mark is 60 with standard deviation 6.5. Test the hypothesis that the average mark of students is 55.
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Support of student's t random variable is
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Define the paired t-statistic.
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
If s12 and s22 are respectively the variance of two independent random samples of sizes ‘m’ and ‘n’. Then standard deviation of the combined sample is
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
List out the properties of t-distribution
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Write the test statistic to test the difference between normal population means.
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Paired t-test is applicable when the observations in both the samples are
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Write down the applications of t-distribution
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Standard error of difference between two sample means in the case of small samples is
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
When paired t-test can be applied?
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Student's 't' distribution was found by
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications

If the size of the sample is larger than 30, the t-distribution tends to

EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
A company gave an intensive training to its salesman to increase the sales. A random sample of 6 salesmen was selected and the value of their sales made before and after the training is recorded. Which test will be more appropriate to test whether there is an increase in mean sales.
EASY
Mathematics>Statistics>Tests Based on Sampling Distributions-I>Student's T-Distribution and its Applications
Write down the procedure to test significance for equality of means of two normal populations based on small samples.