Consider the following competing hypotheses and relevant summary statistics: (You may find it useful to reference the appropriate table: chi-square table or F table)H0: σ21/σ22�12/�22 ≤ 1HA: σ21/σ22�12/�22 > 1Sample 1: s21�12 = 935, and n1 = 14Sample 2: s22�22 = 812, and n2 = 11 a. Calculate the value of the test statistic. (Round your answer to 3 decimal places.) Consider the following competing hypotheses and relevant summary statistics: (You may find it useful to reference theappropriate table: chi-square table or Ftable)He: 0²/01HA: 02/02 > > 1Sample 1: s² = 935, and n₁ = 14Sample 2: s² = 812, and n₂ = 11a. Calculate the value of the test statistic. (Round your answer to 3 decimal places.)Test statistic

The population variance for the first population is and the population variance for the second…

Consider the following competing hypotheses and relevant summary statistics: (You may find it useful to reference the appropriate table: chi-square table or Ftable) He: 02/01 HA: 02/0₂ > 1 Sample 1: s² = 935, and n₁ = 14 Sample 2: s3 = 812, and n₂ = 11 a. Calculate the value of the test statistic. (Round your answer to 3 decimal places.) Test statistic

Consider the following competing hypotheses and relevant summary statistics: (You may find it useful to reference the appropriate table: chi-square table or Ftable) He: 02/01 HA: 02/0₂ > 1 Sample 1: s² = 935, and n₁ = 14 Sample 2: s3 = 812, and n₂ = 11 a. Calculate the value of the test statistic. (Round your answer to 3 decimal places.) Test statistic

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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From the given information in each case below, use technology to find the P-value for a chi-square test and give the conclusion for a significance level of a = 0.01. (Use technology to calculate the P-value. Round your answers to four decimal places.) USE SALT (a) x² = 7.40, df = 2 P-value = State the conclusion. Reject Ho Fail to reject Ho (b) x² = 12.90, df = 6 P-value= State the conclusion. O Reject Ho. Fail to reject Ho- (c) x² = 17.70, df = 9 P-value = State the conclusion. O Reject Ho- Fail to reject Ho. (d) x² = 21.40, df = 4 P-value = State the conclusion. O Reject Ho Fail to reject Ho (e) x² = 5.10, df = 3 P-value = State the conclusion. Reject Ho. O Fail to reject Ho.
Consider the following hypothesis test: H 0: u= 16 H a: u not equal16 A sample of 40 provided a sample mean of 14.35. The population standard deviation is 5. a. Compute the value of the test statistic (to 2 decimals). (If answer is negative, use minus “-“ sign.) b. What is the p-value (to 4 decimals)? c. Using = .05, can it be concluded that the population mean is not equal to 16? d. Using = .05, what are the critical values for the test statistic (to 2 decimals)?
Consider the following hypothesis test: H0: mu >= 20 Halpha:mu < 20 A sample of 50 provided a sample mean of 19.4 . The population standard deviation is 2 . a. Compute the value of the test statistic (to 2 decimals). Enter negative value as negative number. b. What is the p-value (to 3 decimals)? c. Using alpha= 0.05, can it be concluded that the population mean is less than 20? d. Using , what is the critical value for the test statistic (to 3 decimals)? Enter negative value as negative number. State the rejection rule: Reject if is - Select your answer -greater than or equal togreater thanless than or equal toless thanequal tonot equal toItem 5 the critical value. Using , can it be concluded that the population mean is less than ? - Select your answer -YesNoItem 6
Please answer part c of the question in the image uploaded
HELP ASAP. info is given in the pic. 8) At which value for alpha (type I) error is the ANOVA model statistically significant?A) 0.05B) 0.025C) 0.01D) 0.005E All of the above 9) When using Fisher's LSD test with a = 0.05 to compare age categories, what is the LSDvalue when comparing the Under 20 group to the 20 to 29 group?A) 9.283B) -0.376C) 2.120D) 11.272E) -2.0 10) Treating the Age factor as a random effect, use the components of variance model toestimate the variance in systolic blood pressure (Y).A) 8.42B) 33.69C) 70.67D) 104.37E) 239.13
3.3.15 Use z scores to compare the given values. Based on sample data, newborn males have weights with a mean of 3293.7 g and a standard deviation of 551.3 g. Newborn females have weights with a mean of 3000.6 g and a standard deviation of 590.5 g Who has the weight that is more extreme relative to the group from which they came; a male who weighs 1700 g or a female who weighs 1700 g? V has the weight that is more extreme. Since the z score for the male is z= and the z score for the female isz= the (Round to two decimal places.)
Consider the following hypotheses: Hg: H 2 160 НА: и < 160 The population is normally distributed. A sample produces the following observations: 152 138 151 144 151 142 Conduct the test at the 1% level of significance. (You may find it useful to reference the appropriate table: z table or table) a. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.) Test statistic
Please use the following information to answer question 9a & 9b: A random sample of n = 16 scores is obtained from a population with a mean of µ = 45. After a treatment is administered to the individuals in the sample, the sample mean is found to be x̅ = 49.2. 9a. Assuming that the sample standard deviation is s = 20, calculate r2 (MUST SHOW WORK FOR THIS PROBLEM). Note: You must provide calculations for the t-statistic, in addition to r2. 9b. Calculate Cohen's d to measure the size of the treatment effect (MUST SHOW WORK FOR THIS PROBLEM). Comparing your answers from 8 (a&b) and 9 (a&b), fill in the blank to properly describe how the variability of scores in the sample influence the measures of effect size. (8. A random sample of n = 16 scores is obtained from a population with a mean of µ = 45. After a treatment is administered to the individuals in the sample, the sample mean is found to be x̅ = 49.2. 9. A random sample of n = 16 scores is obtained from a…
Please tell the steps used to solve the following questions using TI-84 calculator. You wish to test the following claim (Ha) at a significance level of α=0.02. Ho:μ=67.3 Ha:μ<67.3You believe the population is normally distributed and you know the standard deviation is σ=12.3. You obtain a sample mean of M=62.7 for a sample of size n=23.What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = correct answer -1.794What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = correct answer 0.0364
1.3.2 Consider the output given below that was obtained using the One Proportion applet. Use information from the output to find the standardized statistic for a sample propor- tion value of 0.45. Probability of success (n): 0.30 Sample size (n): 25 Number of samples: 1000 O Animate Draw Samples Total = 1000 180 Mean = 0.301 SD = 0.091 120 60 0.08 0.16 0.24 0.32 0.40 0.48 0.56 0.64 Proportion of success
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A poll classified respondents by gender and political party, as shown in the table. A researcher wonders if gender and party affiliation are not independent. (Assume a significance level of α = 0.05) Complete parts a) through e) below. d) Find the P-value for this test. Calculate the chi-square statistic. x² = 2.339 (Round to three decimal places as needed.) Find the P-value for the test. Choose the correct answer below. 0.0823 0.3104 0.003 DRIO 40 40 25 Male Female 49 35 18 e) State an appropriate conclusion. Choose the correct answer below. O A. Fail to reject the null hypothesis. There is sufficient evidence to support the claim. B. Reject the null hypothesis. There is not sufficient evidence to support the claim. C. Reject the null hypothesis. There is sufficient evidence to support the claim. O D. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim.