Chris buys 7 patatoes for 84 pesos, how many patatoes can he buy for 144 pesos?
2 answers:
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In this case we have to simplify in order to find the correct expression.
Follow these steps and refer to the picture shown below to better understand the steps and to know how it was solved.
Step 1:
-Reduce the expression by cancelling the common factors
Step 2:
-Reduce the expression by cancelling the common factors
Step 3:
-Rewrite the expression
Step 4:
-Pull terms out from under the radical
Step 5:
-Simplify the expression
Follow these steps and refer to the picture shown below to better understand the steps and to know how it was solved.
Step 1:
-Reduce the expression by cancelling the common factors
Step 2:
-Reduce the expression by cancelling the common factors
Step 3:
-Rewrite the expression
Step 4:
-Pull terms out from under the radical
Step 5:
-Simplify the expression
Answer:
A) : p=0.5 (At least half of the workers are women,fair)
B) : p<0.5 (Less than half of the workers are women,unfair)
C) critical value of the test statistic is 1.64 (one tailed)
D) Test statistic is ≈ 0.29
E) Since 0.29<1.64, we fail to reject the null hypothesis. There is no significant evidence that the company has unfair hiring practices at 0.05 significance level.
Step-by-step explanation:
Let p be the proportion of women workers in the company. Null and alternative hypotheses are
: p=0.5 (At least half of the workers are women,fair)
: p<0.5 (Less than half of the workers are women,unfair)
Test statistic can be found using the equation:
z= where
- p(s) is the sample proportion of women workers (
)
- p is the proportion assumed under null hypothesis. (0.5)
- N is the sample size (55+52=107)
Then z= ≈ 0.29
For alpha 0.05, critical value of the test statistic is 1.64 (one tailed)
Since 0.29<1.64, we fail to reject the null hypothesis. There is no significant evidence that the company has unfair hiring practices at 0.05 significance level.