G A sample of provided a sample mean of . The population standard deviation is . Enter negative values as negative number. a. Compute the value of the test statistic (to 2 decimals). b. What is the -value (to 3 decimals)? c. Using , can it be concluded that the population mean is less than ? d. Using , what is the critical value for the test statistic (to 3 decimals)? State the rejection rule: Reject if is the critical value. Using , can it be concluded that the population mean is less than ?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)