Question

Asked Feb 8, 2019

3 views

What is a null hypothesis?

1 Rating

Step 1

**Hypothesis:**

Hypothesis is an assumption about the parameter of the population which will be made on the limited evidence as the start value to proceed for further investigation, and the assumption may or may not be true.

In testing the hypothesis is of two types. The two types are:

- Null hypothesis (
*H*)_{0} - Alternative hypothesis (
*H*)_{1}

Step 2

**Null and alternative hypotheses:**

*Null hypothesis:*

Null hypothesis is a statement which is tested for statistical significance in the test. The decision criterion indicates whether the null hypothesis will be rejected or not in the favor of alternative hypothesis. In other words it can be said that, the null hypothesis is a statement which indicates the relationship between statistical measurements, distributions or categories. More often, null hypothesis states no significance relationship between variables or populations. But, null does not indicate “0” all the time.

*Alternative hypothesis:*

Alternative hypothesis is contradictory statement of the null hypothesis.

Step 3

**Examples of null hypothesis:**

Suppose while tossing a coin we want to test whether the coin is unbiased or not, and the probability for the occurrence of head is *p= *1/2

Now, the null and alternative hypothesis will be as follows:

Null hypothesis (*H*0): *p *= 1/2

Alternative hypothesis (*H1*): *p*≠1/2

Some othe...

Tagged in

Q: . For two factors-starchy or sugary, and green base leaf or white base leaf-the following counts for...

A: Introduction:Denote X1, X2, X3 and X4 as the counts for the progeny of self-fertilized heterozygotes...

Q: Using the table below, determine the critical value or values for a hypothesis test for a proportion...

A: It is provided that the test is right tailed and the significance level is 1%.So, the critical value...

Q: Suppose that in a random selection of 100 colored candies, 21% of them are blue. The candy company c...

A: State the appropriate hypothesis:Let p be the population proportion of blue candies.A candy company ...

Q: Q5. You are considering two investment choices: a. 1 year CD that pays 2% for sure; b. investing in ...

A: It is provided that the investment in CD has return of 2% for sure.So, the mean return of this inves...

Q: A group says that the mean daily lodging cost for a family traveling in Region 1 is the same as in R...

A: Given the data of mean daily lodging cost for a family traveling in Region 1 and Region 2.The claim ...

Q: Q5. You are considering two investment choices: a. 1 year CD that pays 2% for sure; b. investing in ...

A: Portfolio Mean and SDI am answering all the sub-partsQ5. You are considering two investment choices:...

Q: Write the equation of the line that passes through the points (0, 1) and (− 1, 3). Explain your solu...

A: The equation of the line is given by, y = mx+c, where m is the slope and c is the intercept.

Q: Need (b) and (c) Let X denote the data transfer time (ms) in a grid computing system (the time requi...

A: (a)Finding the values of α and β :The random variable X represents the data transfer time in a grid ...

Q: See attachment.

A: Given X(n,p) is a binomial random variable with parameters n,p.n is total number of trailsp is proba...