Name: Navin Janmohammad 1. Using the MM207 Student Data Set: a) What is the correlation between student cumulative GPA and the number of hours spent on school work each week? Be sure to include the computations or StatCrunch output to support your answer. ANSWER: Correlation: 0.30790085 From StatCrunch: Correlation between Q10 What is your cumulative Grade Point Average at Kaplan University? And Q11 How many hours do you spend on school work each week? Is: Correlation:
Premium
2). 95% is set as the confidence level for the above data. The sample size is below 15 and the chart below depicts the distribution of average mean for the five weeks being normal (University of Phoenix‚ 2010‚ Estimation and Confidence Intervals‚ p. 305). The distribution scale put to use is the t-distribution satisfying the above conditions. The interval that encloses the true population parameter in a 95% confidence level base on the current
Premium Management Time Transport
research using few essential components necessary to comprehend it adequately. Therefore‚ it is imperative to familiarize yourself with statistical terminologies like confidence interval and statistical and clinical significance to benefit from the information acquired from a conducted study. First‚ to discuss the confidence interval (CI)‚ one must apprehend the implications of this measure which could be explained as a process of initially taking a random sample from a population and computing
Premium Scientific method Research Nursing
zα/2 that corresponds to a degree of confidence of 91%. a. 1.645 b. 1.75 c. 1.34 d. 1.70 2. STAT10T 7.2.3-2 (Points: 5.0) Solve the problem. The following confidence interval is obtained for a population proportion‚ p: 0.817 < p < 0.855 Use these confidence interval limits to find the point estimate‚ . a. 0.833 b. 0.817 c. 0.839 d. 0.836 3. STAT10T 7.2.4-3 (Points: 5.0) Find the margin of error for the 95% confidence interval used to estimate the population
Premium Sample size Statistics Statistical hypothesis testing
revenue each day. 2a. Confidence interval is a range of values constructed from sample data so that the population parameter is likely to occur within that range at a specific probability (Lind‚ Marchal & Wathen‚ 2013). Using the 95% level of confidence‚ the confidence interval for Unicafe West is 220.42 6.211. The confidence interval limits are $214.21 and $226.63 (rounded off to 2 decimal places). Using the 95% level of confidence‚ the confidence interval for Unicafe North is
Premium Sample size Statistical hypothesis testing Statistics
| Merola Resort Properties | | | Group 2Team 2 | Statistic Assignment - Lecturer: Sienney Liu | | Team members: Nguyen Ngoc Bao Chau s3408641Dinh Bach Nga s3410233Huynh Minh Khoa s3409594 | QUESTION 1: Use Excel to create a histogram which displays the frequencies of different satisfaction levels collected from the guests in each of the two hotels. Be sure to include the two Frequency Distribution tables with your two histograms. Bin | Frequency |
Premium Arithmetic mean Standard deviation Statistics
Hypothesis statement is; there is a difference in the coffee consumption rate of Americans based on gender. The second Hypothesis statement is; there is not a difference in the coffee consumption rate of Americans based on gender. The team will use the Confidence Interval to check if there is no significant difference in coffee consumption levels by gender. (a) The research question is whether there is a difference in the coffee consumption rate of Americans based on gender. (b) In order to answer this
Premium Statistical hypothesis testing Statistical inference Normal distribution
better to multiply the endpoints of the confidence interval by the population because now there will be a range of values‚ but it still will not be accurate because the confidence interval is still using the mean from the sample‚ which isn’t representative of the population‚ thus it cannot be used as an estimate for the population. In this situation‚ there will be far less than 1.3 million people purchasing from the catalog thus using the lower limit of the confidence interval will still be far higher
Premium Normal distribution Standard deviation Statistics
Assignments2 solutions: Due by Midnight Monday October 13th‚ 2014(drop box of week 2) (Chapters 5‚ 6‚ 7 and 8) Total 75 points. True/False (1 point each) Chapter 51. If the probability of success is 0.4 and the number of trials in a binomial distribution is 150‚ then its variance is 6. FALSE σ2= (np(1-p)) =(150*0.4*0.6) = 36. But the standard deviation is 6. 2. If a fair coin is tossed 20 times then the probability of less than 10 Tails is less than 0.4 (less than 40% chance). FALSE It
Premium Normal distribution Standard deviation
Bock Investment Services Lisa started Bock Investment services in 1994 with the goal of making BIS the leading money market advisory service in Southern Carolina. To provide better service for her present clients and to attract new clients‚ she has developed a weekly newsletter. Lisa has been considering adding a new feature to the newsletter that will report the result of a weekly telephone survey of fund managers. To investigate the feasibility of offering this service and to determine what type
Premium Normal distribution Standard deviation Confidence interval