Ralphâs Bookstores have indicated that the annual gross revenue for their stores has a standard deviation of Ï=$50,000. Blank #1: Given a sample size of 25 and a sample mean of $270,000, create a 90% confidence interval for estimating the population mean annual gross revenue. Enter your answer as lower bound, upper bound with no extra spaces and bounds rounded to nearest whole number.
Given a sample size of 25 and a sample mean annual gross revenue of $270,000, conduct a hypothesis test with a 0.10 level of significance to show that the population mean number of boxes sold is different from $250,000.
Blank #2: Report the p-value of the test to 4 decimal places.
These procedures support each other because the value of $250,000 is (Blank #3: not in or in) the confidence interval and the p-value of the test is (Blank #4: smaller than or not smaller than) level 0.10.

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000