An instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructor's course to try to improve their critical reading test scores. At a = 0.01, is there enough evidence to support the instructor's claim? Complete parts (a) through (f). Student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Score on first test 401 580 482 357 601 516 413 326 611 533 415 603 522 630 Score on second test 408 643 543 383 586 530 364 453 700 591 448 613 565 644 (a) Identify the claim and state Ho and Ha The claim is "The students' critical reading test scores CO the second time they took the test."

The M&Ms milk chocolate color distribution is the following: 25% blue, 35% orange, 23% red, and 17% brown. In a bag, I found 160 blue M&Ms, 224 orange ones, 169 red ones and 99 brown ones.I am wondering whether my bag of M&Ms is representative of the manufacturer's claim. Calculate the absolute value of the test statistic. number (rtol=0.01, atol=D0.0001) Calculate the absolute value of the test statistic that would correspond to a = 0.05. number (rtol=0.01, atol=D0.0001) Using a level of significance of a = 0.05, do the M&Ms in the bag match the required color distribution? State your decision. O (a) Reject HO O (b) Cannot Reject HO

This question will be answered in three parts. Use the following sample data of math test scores to answer all three parts: 43; 55; 54; 83; 95; 58; 85; 65; 72; 96; 71; 47; 71; 82 Part A)  Calculate the mean for the data above: Round your answer to 2 decimal places.

Hi. Just wanna ask help for this question.If possible can u not use excel for the solution please because it's hard for me to grasp. Thanks a lot.

4. Find the mode of this data set: 3, 3, 4, 8, 5, 8, 1, 6, 7. OA. no mode OB. 3 O c. 5 OD. 3 and 8

Choose the correct answer.If the P-value of a test of significance is 0.999 then:A. the null hypothesis should be rejected.B. the null hypothesis should not be rejected.C. the alternative hypothesis provides a plausible explanation of the data.D. Both A and C are true.

Data was collected for a sample of organic snacks. The amount of sugar (in mg) in each snack is summarized in the histogram below. 12 10 4 120 140 160 180 200 220 240 260 amount of sugar (mg) What is the sample size for this data set? n3D kouənbas

Match the histograms with their associate boxplot

Use the table to answer the questions.  Compute the prevalence of true diabetes in this population.  Compute the sensitivity of the test. Explain in words what your sensitivity answer means. (Do not just write the definition; include your result!) Compute the specificity of the test.  Explain in words what your specificity answer means. (Do not just write the definition; include your result!) Compute the positive predictive value of the test. Explain in words what your positive predictive value answer means. (Do not just write the definition; include your result!)

A local doctors office recorded the wait times for 70 patients on a saturday afternoon and organized he times in the histogram below a. what percent of people waited more than 15 minutes? b. what percent of people waited less than 20 minutes? c. what percent of people waited less than 5 minutes given they waited less than 20 minutes?