An inspector of a production facility, which produces digital calculators, has collected 10 samples each contained 100 calculators. After the inspection, he found that 15 calculators were defective. Find the UCL and the LCL, by using 2-sigma (z=2). Hint: Sample size is known (n=100)and , the inspection has two possible outcomes (i.e., undefective and defective). In other words, average percentage error can be calculated. UCL=0.039, LCL= 0 UCL = -0.009, LCL = 0.039 UCL=0, LCL=0.039 Cannot be calculated UCL = 0.039, LCL = -0.009

An analysis of variances produces dftotal = 16 and dfwithin = 14. For this analysis, how many treatment conditions are being compared?​

Seven acute schizophrenics and 10 chronic schizophrenics have been measured on a clarity of thinking scale. The mean for the acute sample was 52, with s = 12, and the mean for the chronic sample was 44, with s = 11. Perform a pooled-variance t test with alpha = .05 (two-tailed), and state your statistical conclusion.

At the car production plant, the revision of 3850 units is carried out. The manager decides to conduct a lot inspection by means of a sample. He wants his study to be 98% confident and decides to allow a 5% error. Calculate the sample size to inspect a lot when: a. It starts and has never reviewed a batch so it does not haveprevious informationb. Several reviews of batches of the same size have been carried out and a positive variability of 0.75 has been obtained

Big babies: The National Health Statistics Reports described a study in which a sample of  96  one-year-old baby boys were weighed. Their mean weight was  25.6  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  =α0.05  level of significance and the  P -value method and Excel. Part: 0 / 5 0 of 5 Parts Complete   Part 1 of 5       (a)State the appropriate null and alternate hypotheses.   H0 :  =μ25 H1 :  >μ25 This hypothesis test is a ▼two-tailed test.                                                                 Part: 1 / 5 1 of 5 Parts Complete   Part 2 of 5       (b)Compute the value of the test statistic. Round the answer to at least three decimal places.…

andomly selected students participated in an experiment to test their ability Co determine when one minute (60 seconds) has passed. Forty students yielded a a sample mean of 56.3 seconds. Assume that o = 6.5 seconds. %3D dents. Is it likely that their mean have an estimate that is reasonably close to 58 seconds?

An independent measures design study with n= 16 in each sample produces a sample meam difference of 4 points and a pooled variance of 24. Wht is the value of t statistic?

Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.10 significance level to test for a difference between the measurements from the two arms. What can be concluded? Right arm Left arm 143 179 OA. Ho: H0 H₁: Hd=0 OC. Ho: P = 0 H₁: Hd 0 sufficient evidence to support the claim of a difference in measurements between the two arms.