the world's smallest mammal is the bumblebee bat, also known as the Kitti's hog-nosed bat. such bats are roughly the size of a large bumblebee. the bumblebee bat is known to have mean weight of 1.8g a researcher found a group of bumblebee bat at statopia, and take a sample of size 81 bats found an average of 1.95 and standard deviation is 0.54. is there sufficient evidence to show the average weight of bumblebee bat at statopia is different than 1.8g at 0.1 significance level based on sample?

what is the p value?

what is the definition for p- value ?

what is the decision ruled based on p- value method ?

what type of test is this question?

what is Ha

what is Ho