A large fishing operation takes a sample of 40 lobster pots and finds an average of 35 in each with a sample standard deviation of 10. What is the 95% confidence interval for the mean number of lobsters in each of the lobster pots? a. (86.34, 92.04) b. (53.06, 58.94) c. (175.69, 182.31) d. (31.90, 38.10) e. (89.86,94.14)

10 squirrels were found to have an average weight of  610  grams with a sample standard deviation of  7.75 . Find the  95 % confidence interval of the true mean weight  (assume the t-student distribution). A.)(608.25, 614.16) B.)(561.02, 614.16) C.) (604.46,615.54) D.) (513.79, 612.77)

Two samples were given the same task. One sample was put into a room painted red, and the pther was put into a blue room. Thier creativity was scored and recorded while completeing the task. Results are given below. Use a 0.05 significance level to test the claim that the samples from populations with the same standard deviation. Assume that all the measurements are met for this test. Red Room n=34    Xbar =15.92    s= 5.97   Blue Room n=36  Xbar= 12.95   s= 5.49   Is this a right, left or two-tailed test? What is the P-Value? Rounded to 3 decimals Write a conclusion about this test.

From a sample of 38graduate​ students, the mean number of months of work experience prior to entering an MBA program was 34.93. The national standard deviation is known to be 18 months. What is a 95​% confidence interval for the population​ mean?   95​% confidence interval for the population mean is _____ , _____. ​(Use ascending order. Round to two decimal places as​ needed.)