a) Hypothesis
given mu is the mean difference.

b)
alpha = 0.1, n = 64
critical value =
= t0.05,63 = 1.670
test statistic =
=
= -1.333
c) since | test statistic | is less than critical value we fail to reject null hypothesis at alpha = 0.1
you are right this is whole question i need it corrected as soon as possible and explained i don't get my mistake...
Please help me with my whole assigment
1. [7 marks in total] A statistics practitioner took a random sample of 31 observations from a normal population. The sample standard deviation is 34 and the sample mean is 97. Note: For each confidence interval, enter your answer in the form (LCL", UCL"). You must include the parentheses and the comma between the confidence limits. A. Estimate the population mean with 95% confidence. Diagram Confidence interval B. Estimate the population mean with...
DATAfile: AirDelay You may need to use the appropriate technology to answer this question Researchers at Purdue University and Wichita State University found that airlines are doing a better job Southwest Airlines were among the leaders were these flights late? Sample data showing the number of minutes that delayed flights were late are provided in the file named AirDelay. Data are shown for both airlines. Assume getting passengers to their destinations on time.t AirTran Airways and on-time arrivals with both...
Someone plz plz help with this Statistics Intro to R programming
question!!!
Here are the examples and follow by my question!!
Thank you so much!! I appreciate it
!!!!My question!!!!
Question Type 1: If possible, calculate the 90% confidence intervals for the temperature it takes for crickets to chirp 15 chirps per second. Code (you must copy and paste your code like below in blue color): # Reading in the data Crickets-read.table(C:/Desktop/CricketChirpsvsTemperature.csv', header TRUE, #View Data View Crickets) #Data analysis...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 26.2 with a standard deviation...
For Here I cant get the right P-Value:
3. (1.68/5 Points] DETAILS PREVIOUS ANSWERS DEVORESTAT9 9.E.020.5. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Question Details X QUESTION PARTS 1 2 co TOTAL -/1.66 -1.66 1.68/1.68 1.68/5 POINTS SUBMISSIONS USED 0/5 0/5 3/5 Suppose 4, and are true mean stopping distances at 50 mph for cars of a certain type equipped with two different types of braking systems. The data follows: m = 9, x = 113.4, 5z = 5.03, n...
My Ask You C-reactive protein (CRP) is a substance that can be measured in the blood. Values increase substantially within & hours of an infection and reach a peak within 24 to 48 hours after. In adults, chronically high values have been linked to an increased risk of cardiovascular disease. In a study of apparently healthy children aged 6 to 60 months in Papua New Guinea, CRP was measured in 90 children. The units are milligrams per liter (mg/l). Here...
explaim the mechanisms amd toxological effects if type 1
diabetes in this article
Exposure to arsenic in drinking water is associated with increased prevalence of diabetes. We previously reported an association of diabetes and urinary concentration of dimethylarsinite (DMAS"), a toxic product of arsenic methylation by arsenic (+ 3 oxidation state) methyltransferase (AS3MT). Here we examine associations between AS3MT polymorphism, arsenic metabolism and diabetes. Fasting blood glucose, oral glucose tolerance and self-reported diagnoses were used to identify diabetic individuals. Inorganic...