Can you the question please and thank you
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Answer:
The p-value of the test is of 0.0536 > 0.02, which means that there is not sufficient evidence at the 0.02 level to support the executive's claim.
Step-by-step explanation:
A publisher reports that 75% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage.
At the null hypothesis, we test if the proportion is of 75%, that is:
At the alternate hypothesis, we test if the proportion is different of 75%, that is:
The test statistic is:
In which X is the sample mean, is the value tested at the null hypothesis,
is the standard deviation and n is the size of the sample.
75% is tested at the null hypothesis:
This means that
A random sample of 280 found that 70% of the readers owned a particular make of car.
This means that
Value of the test statistic:
P-value of the test and decision:
The p-value of the test is the probability of finding a sample proportion differing from 0.75 by at least |0.7 - 0.75| = 0.05, which is P(|z| > 1.93), which is 2 multiplied by the p-value of z = -1.93.
Looking at the z-table, z = -1.93 has a p-value of 0.0268.
2*0.0268 = 0.0536.
The p-value of the test is of 0.0536 > 0.02, which means that there is not sufficient evidence at the 0.02 level to support the executive's claim.
Like terms are those terms, which have the common variable with same powers.
The number of like terms in the given expression are 3, which is . the option 3 is the correct option.
In the algebra or the algebraic expression the like terms are those terms, which have the common variable with same powers.
Given information-
The given expression in the problem is,
The given expression is the algebraic expression which 3 number of unknowns variables.
There is total 6 terms in the given expression. In which 5 terms consists the variables and one term is constant.
In the given expression,
- The total number of terms with variable x are 3 which are,
.
- The total number of terms with variable y is 2 which is
.
- The total number of terms with variable z is 1 which is
.
- The total number of constant terms is 1 which is 7.
Thus the number of like terms in the given expression are 3, which is . the option 3 is the correct option.
Learn more about the like terms here;