(а) На: р> 0.9, z %3D 1.49 (Б) На: р< о.9, z %3D -2.70 (b) (с) На: р# 0.9, z %3D -2.70
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- you obtain a test statistic of z = 2.33 Find the p-value accurate to 3 decimald. Find the p-value for the test. p-value=enter your response here (Round to three decimal places as needed.)Big babies: The National Health Statistics Reports described a study in which a sample of 354 one-year-old baby boys were weighed. Their mean weight was 25.8 pounds with standard deviation 5.3 pounds. A pediatrician claims that the mean weight of one-year-old boys is greater than 25 pounds. Do the data provide convincing evidence that the pediatrician's claim is true? Use the a=0.05 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 5
- Consider using a z test to test H: p = 0.9. Determine the P-value in each of the following situations. (Round your answers to four decimal places.)Sleep Time A person read that the average number of hours an adult sleeps on Friday night to Saturday morning was 7.1 hours. The researcher feels that college students do not sleep 7.1 hours on average. The researcher randomly selected 16 students and found that on average they slept 8.1 hours. The standard deviation of the sample is 1.2 hours. At a=0.10, is there enough evidence to say that college students do not sleep 7.1 hours on average? Assume that the population is approximately normally distributed. Use the critical value method and tables.The p-value for this test? (Round to four decimal places as needed.)
- . The statistic of z = -1.94 is obtained when testing the claim that p = 3⁄8Give the value of the test statistic t for this situation: H0: ?d = 0, Ha: ?d ≠ 0, d = −4, sd = 15, n = 50. (Round the test statistic to two decimal places.) t=_____Find the value of a such that P(Z > a) = 0.35 Round to two places after the decimal.
