The 5th percentile of the chi-squared distributionwith n 5 10
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The 5th percentile of the chi-squared distribution
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- You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. A sample of 21 night students and 22 day students and their GPA's are recorded below. Test the claim using a 10% level of significance. Assume the population variances are unequal and that GPAs are normally distributed. Give answers to 4 decimal places. GPA-Night GPA-Day 3.32 3.1 3.22 3.26 3.55 3.25 3.03 3.51 3.22 3.21 3.12 3.05 2.86 3.38 3.32 3.08 3.16 2.88 3.13 3.43 3.15 3.17 3.13 3.26 2.97 2.46 3.3 3.28 3.5 3.19 3.37 3.46 3.88 2.86 3.61 2.89 3.51 2.91 3.11 2.32 3.06 3.16 2.03 What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols in the order they appear in the problem.H0: H1: Based on the hypotheses, find the following:Test Statistic=p-value=The correct decision is to .The correct summary would be:…The amount of time, in minutes, that a person must wait for a taxi is uniformly distributed between 1 and 30 minutes, inclusive. Find the 60th percentile. 10.5 12.6 14.9 16.2 18.4 20.1Find chi square values using the distribution table Level of Significance a = 0.01 Tail Left Right Two Tailed Level of Significance 1-a Left (1-) and Right 5) a Degrees of Freedom n- 1 a. Left tail with n = 5, b. Right tail with n = 24. x = %3D c. Two tails with n = 34, x = and XR %3D %3D
- Q4: find the mean, the model, the variance and the standard deviation for the frequency distribution of profit where the data is represented the number of (35) product that sold during one day? Class limits frequency 13-19 2 20-26 7 27-33 12 34-40 5 41-47 6. 48-54 1 55-61 62-68 2t8 solve both pleaseProb & Stat 1
- For the distribution as shownDetermine the 3rd quartile Class. f3-6 46-9 109-12 1212-15 915-18 5You developed a test to measure the speaking ability of babies. The scores below are given to babies based on their genders. Compute the standard deviation, the variance, the range, and the coefficient of variation for the two different groups.(2 decimal places for everything and put the % sign when doing the C.V with no spaces in between.) Boys Girls 13.7 12.9 17.6 10.7 12.9 8.3 8.7 11 9.6 13.9 11.9 11.2 8.7 10.7 12.1 11.9 10.5 10.7 11.2 9.3 boys girls std. dev. (2 decimals) std. dev. (2 decimals) variance (2 decimals) variance (2 decimals) range (1 decimals) range (1 decimals) coef. of var. (2 dec add %) coef. of variance (2 dec add %)5 Use the table below to find the percentage of data items in a normal distribution that lie a. below and b. above a z-score of −2.1. z-score -3.0 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 Percentile 0.13 0.19 0.26 0.35 0.47 0.62 0.82 1.07 1.39 1.79 z-score -2.0 -1.9 -1.8 -1.7 -1.6 -1.5 -1.4 -1.3 -1.2 -1.1 Percentile 2.28 2.87 3.59 4.46 5.48 6.68 8.08 9.68 11.51 13.57 z-score -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 Percentile 15.87 18.41 21.19 24.20 27.43 30.85 34.46 38.21 42.07 46.02 a. The percentage of data items that lie below the z-score is ___%. b. The percentage of data items that lie above the z-score is ___%
- X 6.3.10 Question Help Three randomly selected households are surveyed. The numbers of people in the households are 2, 4, and 9. Assume that samples of sizen=2 are randomly selected with replacement from the population of 2, 4, and 9. Construct a probability distribution table that describes the sampling distribution of the proportion of odd numbers when samples of sizes n= 2 are randomly selected. Does the mean of the sample proportions equal the proportion of odd numbers in the population? Do the sample proportions target the value of the population proportion? Does the sample proportion make a good estimator of the population proportion? Listed below are the nine possible samples. 2,2 2,4 2,9 4,2 4,4 4,9 9,2 9,4 9,9 Construct the probability distribution table. Sample Probability Proportion (Type an integer or fraction.)The median for this question.Time left 0:48:02 Which one of the following choices describes a problem for which an analysis of variance would be appropriate? CA. Analyzing the relationship between high school GPA and college GPA C B. Analyzing the relationship between gender and opinion about capital punishment (favor or oppose). OC. Comparing the mean birth weights of newborn babies for three different hospitals. C D. Comparing the proportion of successes for three different treatments of anxiety. Each treatment is tried on 100 patients CE. None of these Next page US ACTIVITY VA(3) Jump to... MacBook Air
