Total 20 14-20-7 40 10 20 40 16-20-8103-5 40 A. Using the values shown, find the expected (E) values for each cell, and put them in Table1. Here are the values that were actually observed: REM Sleep Quality Recall Normal Deprived Total High 10 4 14 Moderate 9 7 16 Low Total 1 20 9 10 20 40 B. With these observed values, calculate Chi-square. E= also boon poy,oz ob oT svoris old ads si C. Find the degrees of freedom and determine if your chi-square is significant D. State your conclusions about whether there is a link between recall and slee 2. The following requires using a t-test. A researcher is interested in determinin Rutgers students tend to have higher IQs than the population average of μ= 1 standard deviation, so use the t-test). To address this question, the researcher sample of n = 25 students and administers an IQ test to them. The average fo 105 and the sample standard deviation turns out to be s = 10

An experiment was conducted to determine whether there is a significant difference among the mean increases in growth produced by five inoculins of growth for plants. The experimental material consists of 20 cuttings of a shrub (all of equal weight), with four cuttings randomly assigned to each of the five different inoculins. The results of the experiment are given in the table; all measurements represent an increase in weight (in grams). Test using a = 0.05. C D 22.0 10.0 A В E 15.0 18.0 21.0 6.0 13.0 19.0 14.0 11.0 9.0 20.0 24.0 21.0 15.0 16.0 17.0 21.0 13.0 8.0 Identify each of the following: 1. Но 2. Н.

21 smooth/yellow 42 smooth/light-yellow 19 smooth/white 22 wrinkled/yellow 39 wrinkled/light-yellow 20 wrinkled/white Calculate the Chi Sqaure statistic of the data shown above:

What does am/n mean ?

Print The contingency table shows the results of a random sample of former smokers by the number of times they tried to quit smoking before they were habit-free and gender. At a = 0.10, can you conclude that the number of times they tried to quit before they were habit-free is related to gender? Perform the indicated chi independence test by completing parts (a) through (e) below. 3. Gender Male Number of times tried to quit before habit-free a 2-3 256 4 or more 150 1 270 Female 148 141 81 (a) Identify the claim and state H, and H,. Hn: The number of times former smokers tried to quit (1) H,: The number of times former smokers tried to quit (2) Which hypothesis is the claim? O Null hypothesis Alternative hypothesis (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. d.f. = Find the critical value. (Round to three decimal places as needed.) Which region below is the correct rejection region? O A. X > x% O B.…