Step-by-step explanation:
a. The null hypothesis is generally an exact value and the alternative hypothesis is the one we are trying to show. We are trying to show that the population mean is different from $24.57, so the hypotheses are as follows:
Null: The population mean hourly wage in the manufacturing industry is the same as the population mean hourly wage in the goods-producing industries
Alternative: The population mean hourly wage in the manufacturing industry differs from the population mean hourly wage in the goods-producing industries
b.
Because we know the population standard deviation, we can use a z test
Plugging in the values:
Expected population mean: 24.57
Sample average: 23.89
Sample size: 30
Population standard deviation: 2.4, we get 0.1207 as our p-value.
c. Using a = 0.05, our p-value is greater than that, so we can not conclude the alternative hypothesis (The population mean hourly wage in the manufacturing industry differs from the population mean hourly wage in the goods-producing industries)
d. Using a critical value calculator, we can find that for a two-tailed approach, the critical value would be 1.96. This would mean that the z score would have to be greater than 1.96 or less than -1.96 for the results to be significant. The population mean we would plug in here is 24.57, while the raw score would be 23.89 and the standard deviation would be 2.4. The z score we get is -0.283, which is not in the values specified (>1.96 or <-1.95) so we cannot conclude the alternative hypothesis
(−∞,2)∪(−2,2)∪(2,∞)
{x|x≠2,−2}
Well lets lay it out
2323 6969
first get 2323 and try its multiples.
2323 x 2 = 4646
2323 x 3 = 6969
so what 2323 and 6969 have in common are the multiple 3
Answer: they are equivalent because they can be divided into each other. HOPE I HELPED!! :P <span />
Answer:
Total Cost 6400
Step-by-step explanation:
Each quarter is 600 dollars
There are 6 quarters. 6 * 600 = 3600
Books <u> 2800</u>
Total 6400
If two or more polygons are congruent, you can place one on top of the other, and they will match exactly. Congruent polygons do not have to be parallelograms or regular. Options A, B, and E are true.
Answer: B. A, B, and E