Answer Happy

24) The world's smallest mammal is the bumblebee bat (Craseonycteris thonglongyai). Such bats are roughly the size of a large bumblebee. Listed are weights (in grams) of a SRS of these bats: 1.7, 1.6, 1.5, 2.0, 2.3, 1.6, 1.6, 1.8, 1.5, 1.7, 2.2, 1.4, 1.6, 1.6, and 1.6. Assume the bats come from a population that is normally distributed. Use a 0.10 significance level to test the claim that these bats come from a population whose mean weight is not 1.80 grams. Ησιμ = 1.80 Ha: μ = 1.80 b) Ho:us 1.80 Ha: > 1.80 25) See problem 24. State the critical value. a)-1.341 b) ±1.761 26) See problem 24. Calculate the test statistic. a) 1.713 b) 0.216 27) See problem 24. Calculate the pvalue. a0 0.0841 b) - 1.2972 I Ho:μ = 1.80 c) Ha: 1.80 c) 1.345 c)-1.713 c) 0.2155 28) See problem 24. Calculate the appropriate confidence interval. a) (1.60, 1.83) b) (1.6, 1.8) c) (1.57, 1.86) Ho: 21.80 d) Ha: μ < 1.80 d) 11.753 d)-1.297 d) 0.2588 b) The test statistic is further from zero than is the critical value; Reject Ho. c) The test statistic is closer to zero than is the critical value; FTR Ho. d) The test statistic is further from zero than is the critical value; FTR Ho. d) (1.6, 1.9) 29) See problem 24. State the technical conclusion based on the traditional method. a) The test statistic is closer to zero than is the critical value; Reject Ho.