Hypothesis: Ho: P = .10 (Mr. Plex and consortium will seriously consider settlement) H1: P < .10 (Mr. Plex and consortium will rigorously defend any lawsuit by Tommy) Analysis： For this case‚ we use 0.01 as the significance level. In a hypothesis test‚ a Type I Error occurs when the null hypothesis is rejected when it is in fact true. That means if the consortium decides to consider a settlement when greater than 10% of the patrons resented ads/commercials is true and we reject the null hypothesis
Premium Statistical hypothesis testing Type I and type II errors Statistics
Definition: Statistics is the study of the collection‚ organization‚ analysis‚ interpretation and presentation of data. It deals with all aspects of this‚ including the planning of data collection in terms of the design of surveys and experiments. A statistician is someone who is particularly well-versed in the ways of thinking necessary for the successful application of statistical analysis. Such people have often gained experience through working in any of a wide number of fields. Some
Premium Statistics
September 16th‚ 2012 This week’s assignment is about the use of misleading statistics. Companies and individuals use statistics in a variety of way in order to provide information on certain things. The use of misleading statistics‚ while not ethical‚ could be viewed as valuable‚ if it increases profit margins or awareness of the stated topic of the statistic in a biased way. Question number 8 provides a statistic that Vitamin E is an antioxidant that may help fight heart disease and cancer
Premium Cartesian coordinate system Dimension
HIIT or high intensity interval training is basically has a succession of intervals of intense and light exercise. Always starts by heating 2-10 minutes. Then followed the dismissal of the interval (from 20 seconds to 2 minutes) intense exercise and light exercise. Number of pairs interval (fast-slow) depends on the fitness exercisers‚ how long it is this kind of training‚ the duration of the interval and the intensity of exercise in "fast" interval. HIIT training is only one of a modification of
Premium Physical exercise Muscle Obesity
squared and then summed together. ***the 6-1 is because it is a sample‚ if this were a population it would just be 6. ***the 807 is the sum off all x. Coefficient of Variation = (16.63/134.5)*100 = 12.3643. Calculate estimates of tolerance intervals containing 68.26‚ 95.44‚ and 99.73 percents. Mean ± 1 SD (68.26%) = 134.5 ± 16.63 = [117.87‚ 151.13]. Mean ± 2 SD (95.44%) = 134.5 ± 33.26 = [101.24‚ 167.76]. Mean ± 3 SD (99.73%) = 134.5 ± 49.89 = [84.61‚ 184.39]. Compute and interpret some
Free Random variable Standard deviation Normal distribution
------------------------------------------------- Introduction: This data set we have been assigned to analyze highlights the fuel-efficiency of the mentioned cars relative to several other variables. One of the major issues most stressed upon to date is the ever-increasing threat of environmental degradation‚ global warming‚ and the need to conserve our scarce natural resources. This has led us to examine the fuel efficiency of cars. With rising gas prices‚ owning a car can become quite costly
Premium Automatic transmission Manual transmission Internal combustion engine
If you are interested in learning the benefits of high intensity interval training‚ your concern with personal fitness is likely greater than the average person’s. High intensity interval training at its most effective level is not for the average Jane or Joe. HIIT‚ as it is also referred to‚ can make even a professional athlete weep. But the results are worth it. High intensity interval training has the advantage of requiring much less time to produce great results. It is designed to achieve rapid
Premium
WEEK FOUR DQ1 Explain the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented? Probability sampling‚ also known as random sampling‚ requires that every member of the study population have an equal opportunity to be chosen as a study subject. For each member of the population to have an equal opportunity to be chosen‚ the sampling method must select members randomly. Probability sampling allows every facet of the study population
Premium Sampling Stratified sampling Sample size
48 are classified as “successful.” (a) Dete rmine the sample proportion‚ P‚ of “successful” people. (b)If the population proportion is 0.07‚ determine the standard error of the proportion. 8.1. If X = 85‚ mean=8‚ n=64‚ construct a 95% confidence interval estimate of the population mean‚ U. 8.2. If X = 125‚ mean = 24‚ and n = 36‚
Premium Statistical hypothesis testing Standard deviation Arithmetic mean
More 19 Confidence Interval Problem Answers AP Statistics Quiz A – Chapter – Key A statistics professor asked her students whether or not they were registered to vote. In a sample of 50 of her students (randomly sampled from her 700 students)‚ 35 said they were registered to vote. 1. Find a 95% confidence interval for the true proportion of the professor’s students who were registered to vote. (Make sure to check any necessary conditions and to state a conclusion in the context
Premium Normal distribution Confidence interval Sample size