Merrill lynch securities and health care retirement, inc, are two large employers in downtown toledo, ohio. they areconsidering jointly offering child care for their employees. as a part of the feasibility study, they wish to estimate the meanweekly child-care cost of their employees. a sample of 10 employees who use child care reveals the following amountsspent last weelcdevelop a 90 percent confidence interval for the population mean. interpret the result.

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?