The mean breaking strength of yarn used in manufacturing drapery material is required to be at least 100 psi. Past experience has indicated that the standard deviation of breaking strength is 2.3 psi. A random sample of 9 specimens is tested, and the average breaking strength is found to be 100.6 psi. Calculate the P-value

The P-value is 0.2177.

Step-by-step explanation:

Test statistic (z) = (sample mean - population mean) ÷ (sd/√n)

sample mean = 100.6 psi

population mean = 100 psi

population sd = 2.3 psi

n is sample size = 9

z = (100.6 - 100) ÷ (2.3/√9) = 0.6 ÷ 0.767 = 0.78

From the standard normal distribution table, the cumulative area of the test statistic is obtained by taking the value of 0.7 under 0.08. The cumulative area is 0.7823.

P-value = 1 - 0.7823 = 0.2177

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

#faazmessi

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation: