Suppose I get a test statistic z = 2.34. If I am using a one tailed test, what is my p value? You should not have to round if you are using the table. If you are not, round to four decimal points.

Q: A DNP student wants to evaluate the change in knowledge scores of a group of cardiac patients after…

A: In given problem, a DNP student obtains a pretest at the beginning of class and immediately after…

Q: A college counselor wants to determine if the number of hours spent studying for a test can be used…

A: An explanatory variable is the one which can be changed independently or what you manipulate or…

Q: Give the value of the test statistic. (Enter your answer rounded to two decim

A: Excel Procedure: Enter the data of No odor in column A. Enter the data of lavender in column B.…

Q: When a data set has one or two values that are much higher than all of the others which of our 3…

A: As Mean is found by adding all the values and dividing by the number of values So if one or two…

Q: on the exam. She gives one of her two statistics clasS w day: X = 83.3, s= 4.1; n= 68 eview day: X =…

A: The claim is that the teacher wants to determine that having an extra review day for a test helps…

Q: Mary took 4 courses last semester: Calculus, Physics, Biology, and History. The means and standard…

A:

Q: statistician is interested in whether the average school fee exceeds $120,000 a. a one-tail test…

A:

Q: additionally how would you find the: test statistic & p-value

A: The claim is that mean lead concentration is less than 19 μg/g Null hypothesis: H0 : µ=9 μg/g…

Q: You have a dataset with a mean of 2, median of 3 and variance of 9.  What is the skewness?

A: Given that  Mean = 2 , Median = 3 , Variance = 9

Q: Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke…

A: It is given that both sample sizes are 200, number of strokes for aspirin alone is 60 and number of…

Q: On five exams, Rachel has a mean score of 80 points. Her lowest score was 50.  If this score is…

A:

Q: Your instructor has the Mid-Term examination grades. He told you that the 25th percentile is 51 and…

A: Given that, Your instructor has the Mid-Term examination grades. He told you that the 25th…

Q: After six biology tests, Ruben has a mean score of 76. What score does Ruben need on the next test…

A: After 6 biology tests :  Mean = 76  After next test : ( biology test will be 7 now )  Mean =78…

Q: Would a sophomore year statistics class students’ average age be a good Point Estimator(This is a…

A: Yes, as usually students in sophomore year are of certain age and the age range is not so huge,…

Q: Lisa took 4 courses last semester: Physics, Biology, History, and Calculus. The means and standard…

A: Lisa took 4 courses last semester, we need to convert Lisa's scores into z-scores. Since, z-score =…

Q: In 2009, it was estimated that 63% of Americans supported the death penalty. In 2014, a Rasmussen…

A: sample size(n)=943 No. of Americans supported the death penalty(x)=536 population proportion=0.63

Q: Are Republicans more likely than Democrats to display the American flag in front of their residence…

A:

Q: What does the p values tell us about the safety of the car?

A: With respect to the output of the pairwise comparison

Q: Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke…

A: Given ,  Aspirin alone :  Sample size = n1 = 200  Number of strokes = x1= 60 Sample proportion = p^1…

Q: What is p value ?

A: The​ P-value is the probability of observing difference in the sample statistic this high or higher…

Q: A data set is described as consisting of n = 15 scores. Based on the notation being used, the data…

A: We have the following statement .

Q: Do shoppers at the mall spend the same amount of money on average the day after Thanksgiving…

A:

Q: Which of the statements is not true? For given set of data,           the mean always exists.…

A: Option A is the answer  Answer : The incorrect statement is the mean always exists. Explanation :…

Q: Find the test statistic for the problem?

A: It is given that Sample size n = 450 Number of patients had a successful knee surgery operation, X =…

Q: Two classes write the same test. Class 1 (n=32) has a mean number of points of 720 (M=720, s=20) and…

A: We have given two classes write the same test.For class 1-Sample size n1 = 32Mean M1 = 720Sample…

Q: A researcher wants to determine whether there is an association between weight and scores on the…

A: Given: R-value = 0.213 P-value = 0.3

Q: For your Week 13 Participation Assignment tell me the path you take in StatCrunch after you click on…

A: Hypothesis test are commonly used to determine the relationship between the sample and population.…

Q: What's the Z score and how is it calculated?

A: We know z-score is used in many fields. But we should know what is the meaning of z-score and how to…

Q: The entering SAT scores and high school GPA's of 100 first-year students and their grade point…

A: Given information: The investigator is specially interested to predict the college GPA for next…

Q: 13) Let X be a random variable that takes only positive values. If E |X| 1. a) Since f (t) = 1/t is…

A: 13. From the given information, Let X be a random variable that takes only positive values. Need to…

Q: f someone scored a 17 when the mean is 19 with a SD of 5, what would their score be if the mean were…

A: given data if some one scored 17   x1=17μ1=19σ1=5 we have to find the score =X2 be if the mean =μ2…

Q: Use the properties of the mean and median to determine which are the correct mean and median for the…

A: Here we see that from above graph that, distribution is positively skewed.  Here mean is lies in…

Q: If the mean of a data set is 22 and the SD is 5, what % of the values fall between 12 and 27? Give a…

A: given that  mean of a data set is 22

Q: What's the p-value?

A: In this case, we need to define the p-value.

Q: Members of fraternities and sororities are required to volunteer for community service. Do…

A: There are two independent samples which are Brothers and Sisters. Both samples come from population…