I would say A................
A) The critical value at α = 0.05 will be 1.645 since the critical value does not fall within the rejection region we reject the null hypothesis
B) A type II error occurs when we fail to reject the null hypothesis and a type II error is also known as an error of omission and the consequence of this type of error is that a false negative result is produced.
<u>Given data :</u>
Amount paid for upgrade = $100
Percentage of customers needed = 25% = 0.25
Sample size ( n ) = 72
Number willing to pay $100 = 19
significance level ( α ) = 0.05
<h3>A) Prove that 25% of the company's customers are willing to purchase the upgrade</h3>
Null hypothesis ( H0 ) : p = 0.25
Alternate hypothesis ( H₁ ) : p > 0.25
α = 0.05
Ρ = 19 / 72 = 0.26
To determine the hypothesis to reject or accept
perform Test statistic : Z =
= ( 0.26 - 0.25 ) /
= 0.01 / 0.0026
Z- score = 0.499
The critical value at α = 0.05 will be 1.645 since the critical value does not fall within the rejection region we reject the null hypothesis
B) A type II error occurs when we fail to reject the null hypothesis and a type II error is also known as an error of omission and the consequence of this type of error is that a false negative result is produced.
Learn more about Type II error : brainly.com/question/7278657?section=related_q
Answer:
226,623.957hectares
Explanation:
80000acres = 32374.851 hectares
and 80000acres are cleared in a day
therefore, 32374.851*7 will be cleared in a week
=226,623.957hectares
<h2>The Great Wall of China is an ancient series of walls and fortifications, totaling more than 13,000 miles in length, located in northern China. Perhaps the most recognizable symbol of China and its long and vivid history, the Great Wall was originally conceived by Emperor Qin Shi Huang in the third century B.C. as a means of preventing incursions from barbarian nomads. The best-known and best-preserved section of the Great Wall was built in the 14th through 17th centuries A.D., during the Ming dynasty. Though the Great Wall never effectively prevented invaders from entering China, it came to function as a powerful symbol of Chinese civilization’s enduring strength.</h2>