Salary information regarding male and female employees of a large company is shown below.Male--FemaleSample Size-64-36Sample Mean Salary (in $1,000)-45-41Population Variance-12872The 90% confidence interval for the difference between the means of the two populations isa. -0.26 to 6.26b. -2 to 2C. -1.96 to 1.96d. -0.92 to 6.92AC) DA

Confidence interval is one way of testing a claim about null hypothesis.

Answered: Male --Female Sample Size Sample Mean…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Parents of a teenage boys off and complain that auto insurance cost more on average for teenage boys and teenage girls a group of concerned parents examines a random sample of insurance bills the main annual cost for a sample of 36 teenage boys with $679 for a sample of 32 teenage girls the main causes $559 from past years it is known that the population standard deviation for each group is $180 at the .01 significance level is the mean cost of auto insurance for teenage boys higher than the main cost for teenage girls
Do men have a higher body temperature than women? Test the indicated claim about the means of two populations. Assume that the two samples are randomly selected, independent, the population standard deviations are not know and not considered equal. The table shows results from a study of body temperatures of men and women. At the 0.05 significance level, test the claim that men have a higher body temperature than women. Men Women n1 = 13 n2 = 16 xˉx̄1 = 97 °F xˉx̄2 = 95.17 °F s1 = 0.26 °F s2 = 0.57 °F What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)H0: Select an answer x̄₂ μ₁ p p₂ μ₂ μ μ(men) p̂₁ x̄₁ σ₁² p₁ s₁² ? > < ≥ ≠ ≤ = Select an answer p̂₁ p₁ μ μ₁ p x̄₁ μ₂ s₁² x̄₂ μ(women) σ₁² p₂ H1: Select an answer σ₂² μ p̂₂ p₁ p p₂ x̄₁ μ(men) x̄₂ μ₂ μ₁ s₂² ? = ≤ > < ≥ ≠ Select an answer s₁² x̄₁ μ₂ μ p̂₁ x̄₂ σ₁² μ(women) p₁ p p₂ μ₁ Original Claim = Select an answer H₀ H₁ df = Based on the hypotheses, find…
Waterfall Heights The data show the heights in foot of waterfalls in Europe and in Asia. Find the 95% confidence interval for the difference of the means Round the answers to one decimal place. Europe Asia 487 614 320 1312 820 470 345 350 964 1246 984 830 722 Send data to Excal Use for the mean height of waterfalls in Europe. Assume the vanables are normally distributed and the variances are unequal. Do not round intermediate
Do men and women select different breakfasts? The breakfasts ordered by randomly selected men and women at a popular breakfast place are shown below. Frequencies of Breakfasts for Men and Women French Toast Pancakes Waffles Omelets Men 81 59 84 87 Women 114 75 104 58 α = 0.05 significance level The test-statistic for this data = (Please show your answer to three decimal places.) The p-value for this sample = (Please show your answer to four decimal places.) Thus, the final conclusion is... There is sufficient evidence to conclude that the distribution of breakfast ordered for men is the same as it is for women. There is insufficient evidence to conclude that the distribution of breakfast ordered for men is not the same as it is for women. There is sufficient evidence to conclude that the distribution of breakfast ordered for men is not the same as it is for women There is sufficient evidence to conclude that breakfast ordered and gender are dependent. There is…
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To construct a 95% confidence interval of variance using a sample of 18 the critical values used are __________ and _____________.

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Male --Female Sample Size Sample Mean Salary (in $1,000) -64 ----36 ---45 --41 Population Variance The 90% confidence interval for the difference between the means of the two populations is -128 72