QNT Final

What allow for be the probability that z is greater than 1. 75? 0. 0401 z rest up in the higher than 1. 75. 22) A cryptograph hypothesis testament make a claim virtually what? A Population line of reasoning translation A null hypothesis is the general default vista in a survey and requires a claim off people parameter. 23) Describe the level of significance? Probability off Type I error Explanation A type 1 error happens when the null hypothesis is unfeigned, but rejected at he same time. 24) Lets finish a statistical test of the difference between two proportions at the 0. 05 level of significance.If the computed z is -1. 07, what will be the correct decision? Do not reject the null hypothesis. Explanation The z is of -1. 07 is acceptable indoors the range of a . 05 level of significance. 25) What condition must be met to achieve a test for the difference of two sample means? information must be at least of interval scale and universes must be normal. 26) Consider a h ypothesis test that compares two population means. The combined degrees of freedom equal 24. What statement about the sample sizes is non true? Lets assume the population tired deviations are equal. Sample A = 11.Sample B = 13 Explanation This must NOT be true because it is outside the limits set by the degree of freedom. 27) What type of chart do we call it when paired data is plotted? Scatter diagram Explanation Paired data must be plotted in a way that shows the relationship 28) When a variable is used to predict the pry of another variable, it is called Independent variable Explanation The independent variable is usable for determining the value of variables that are not explicitly known. 29) 20 arbitrarily selected online students were given 1 5 multiple-choice problems ND 15 open-ended problems that cover the same topics.The teacher wanted to know which questions the students scored better on. What form of test is this? A paired t-test Explanation The paired t-test evalu ates the mean values that result form a set of data. 30) The weights of 100 units of a fruit created by two identical mouldes have same mean, but the standard of process A is 15 while that of B is 7. What is true about this scenario? Unit weights in process B will be group closer than in process A. Explanation A wider standard of process is going to create greater deviation in the end products.