One of your distributors reports an average of 150 sales per day. you suspect that this average is not accurate, so you randomly select 35 days and determine the number of sales each day. the sample mean is 143 daily sales with a standard deviation of 15 sales. at ? = 0.01, is there enough evidence to doubt the distributor’s reported average? step 1. state the null and alternate hypothesis. step 2. identify the test as left-tailed, right-tailed or two tailed test. step 3. identify the significant level, ? step 4. determine the critical value(s)step 5. identify the rejection and non-rejection region(s)step 6. compute the test statistic (test value)step 7. make the decisionstep 8. interpret the decision.

Suppose the government decides to issue a new savings bond that is guaranteed to double in value if you hold it for 20 years. assume you purchase a bond that costs $25. a. what is the exact rate of return you would earn if you held the bond for 20 years until it doubled in value? (do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. if you purchased the bond for $25 in 2017 at the then current interest rate of .27 percent year, how much would the bond be worth in 2027? (do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. in 2027, instead of cashing in the bond for its then current value, you decide to hold the bond until it doubles in face value in 2037. what annual rate of return will you earn over the last 10 years? (do not