Construct a 99% confidence interval for H, -4, with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances. Stats X, = 87 mg, s, = 3.77 mg, n, = 14 2 =45 mg, s, = 2.24 mg, n, = 18 Confidence interval when (x, - X2) -t variances are not equal +t. n. d.f. is the smaller of n, -1 or n2 -1 Enter the endpoints of the interval.

Construct a 99% confidence interval for H, -4, with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances. Stats X, = 87 mg, s, = 3.77 mg, n, = 14 2 =45 mg, s, = 2.24 mg, n, = 18 Confidence interval when (x, - X2) -t variances are not equal +t. n. d.f. is the smaller of n, -1 or n2 -1 Enter the endpoints of the interval.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: he number of square feet per house are normally distributed with an unknown population mean and…

A: Given information- Sample size, n = 33 Confidence level, C = 90% Significance level, α = 0.1 So,…

Q: Researchers interested in determining the relative effectiveness of two different drug treatments on…

Q: Estimate can be used to identify two general features for each of the several variance estimates in…

A: Here's the explanation is as follows; Analysis of variance (ANOVA) is a method for testing…

Q: Find a 95 percent confidence interval for the difference between means, where n 1 = 50, n 2 = 36, X…

A: The (1-α)% confidence interval for the difference between means is given by (assuming unequal…

Q: he mg of nicotine in menthol cigarettes is normally distributed and a sample of 25 menthol…

A: Given: s= 0.24 n = 25 The variance can be calculated as: s2=0.242≃0.058 The degrees of freedom will…

Q: The average length of stay of a sample of 20 patients discharged from a general hospital was 7 days…

A: Given : Sample size(n1) = 20Sample size(n2) = 24Samle mean (X1) =7Sample mean (X2) = 36Sample S.D…

Q: Construct a 90% confidence interval for u, – U, with the sample statistics for mean cholesterol…

Q: The electric cooperative needs to know the mean household usage of electricity by its non-commercial…

A: Population variance is 5.29. The z-critical value for 80% confidence interval is 1.2816 using the…

Q: We have a normally distributed random variable Y and we wish to develop a 95% confidence interval…

A: From the given date we want to find the confidence interval for variance.

Q: Construct a 90% confidence interval for u -42 with the sample statistics for mean cholesterol…

Q: Construct a 90% confidence interval for H₁-H2 with the sample statistics for mean cholesterol…

A: Given Data:For Sample 1:Sample size, n₁ = 18Sample mean, x̄₁ = 99Sample standard deviation, s₁ =…

Q: A random sample of 1818 American students had a mean height of 7070 inches with a standard deviation…

A: n1 = number of American students = 1818 x1 = Mean of American students = 70.70 inches s1 = standard…

Q: If the mean= 85 and standard deviation =8 and n=64(sample size) construct a 95% confidence interval…

Q: A random sample of daily high temperatures in January and February are listed. At an alpha equal to…

A: The objective of this question is to determine if there is a significant difference in the variances…

Q: We have a normally distributed random variable Y and we wish to develop a 90% confidence interval…

Q: The level of cholesterol in the blood for all men aged 20 to 34 follows a Normal distribution with…

A: The sampling distribution of a statistic is known as the probability distribution of all the…

Q: An automotive part must be machined to close tolerances to be acceptable to customers. Production…

A: The sample size is 32.

Q: Use paired t-interval procedure to determine a 90% confidence interval for the difference between…

A: The data is (X, Y) = (49.3, 49), (43.2, 42), (50.4, 50), (36.3, 37), (52.3, 50)

Q: Heights for teenage boys and girls were calculated. The mean height for the sample of 14 boys was…

Q: A certain counselor wants to compare mean IQ scores for two different social groups. A random sample…

Q: Find a 95% confidence interval for the difference between full attendance students' Exam 5 score and…

A: We have given data, Less attendance Full attendance 90 96 90 96 60 100 50 99 69 88…

Q: The number of cell phones per 100 residents in countries in Europe is given in table #9.3.9 for the…

A: Number of cell phones per 100 residents in Europe and America are given. We need to determine the…

Q: Paramesan cheese is aged for an average of 24 months to allow it to develop the desire richness in…

Q: A professor measured her own blood pressure 25 times and found the sample mean to be 128.52, and…

Q: The age when smokers first start from previous studies is normally distributed with a mean of 13…

A: Given,sample size(n)=22sample mean(x¯)=13.8standard deviation(σ)=2.1α=1-0.90=0.1α2=0.05Z0.05=1.645…

Q: The Average final score was 78, the average midterm score was 80. The standard deviation for the…

A: In this case, it is needed to predict the final exam score based the midterm score.

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Construct a 99% confidence interval for u, - u, with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and
confidence interval construction formula below. Assume the populations are approximately normal with unequal variances.
Stats
X, = 87 mg, s, = 3.77 mg, n, = 14
X, = 45 mg, s. = 2.24 mg, n, = 18
Confidence interval when (X, – X2) -te.
variances are not equal
+t.
n
n2
n2
d.f. is the smaller of n, -1 or n2-1
Enter the endpoints of the interval.
<H1 - H2 < (Round to the nearest integer as needed.)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

Last dog Based on the regression output seen in Exer-cise 17, create a 95% confidence interval for the slope of the regression line and interpret your interval in context.
The university conducted a study to observe the efficiency of students to see whether students do better when they study all at once or in intervals.One group of 12 participants participated in the survey after studying for one hour continuously. The other group of 12 participated in the survey after studying for three twenty-minute sessions. As per the survey, results group 1 had a mean score of 75 and a variance of 120. Second group had a mean score of 86 and a variance of 100. Assuming the normal populations, independent samples, and equal population variances conditions hold, are the mean test scores of these two groups significantly different at the 0.05 level?
The blood pressure and weight of Jellystone Park bears are correlated with and .6 is the correlation coefficient of blood pressure with weight. The average blood pressure is 150 with variance 100, for Jellystone Park bears. For a randomly selected bear with average weight if we predict its blood pressure is 150 after weighing it, using SLR, what is our expected squared error?
Construct a 99% confidence interval for H1 H2 with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances. Stats x₁ = 135 mg, s₁ = 3.82 mg, n₁ = 18 Confidence interval when (x-2)- variances are not equal 2 A
The mean number of English courses taken in a two-year time period by male and female college students is believed to be about the same. An experiment is conducted and data are collected from 29 males and 16 females. The males took an average of two English courses with a standard deviation of 0.7. The females took an average of three English courses with a standard deviation of 1.1. Are the means statistically the same? (Use ? = 0.05) 1) State the distribution to use for the test. (Enter your answer in the form z or tdf where df is the degrees of freedom. Round your answer to two decimal places.)
Do men take less time than women to get out of bed in the morning? The 48 men observed averaged 7.7 minutes to get out of bed after the alarm rang. Their standard deviation was 1.8. The 55 women observed averaged 8 minutes and their standard deviation was 1.9 minutes. What can be concluded at the αα = 0.01 level of significance? For this study, we should use Select an answer t-test for the difference between two dependent population means z-test for the difference between two population proportions t-test for a population mean t-test for the difference between two independent population means z-test for a population proportion The null and alternative hypotheses would be: H0:H0: Select an answer μ1 p1 Select an answer > ≠ = < Select an answer p2 μ2 (please enter a decimal) H1:H1: Select an answer μ1 p1 Select an answer > < = ≠ Select an answer p2 μ2 (Please enter a decimal) The test statistic ? t z = (please show your answer to 3 decimal places.) The…
Fed-Ex claims that the variance of their 2-day package delivery is less than 0.75 days. A simple random sample of 24 deliveries showed a sample variance s2 = 0.81 days. Construct a 95% Interval Estimate for population variance for the 2-day delivery times.
Times for a surgical produce are normally distributed. There are two methods. Method A has a mean of 31 minutes and a standard deviation of 3 minutes while method B has a mean of 35 and a standard deviation of 1.5 minutes. Which procedure is preferred if the procedure must be completed within 30 minutes method A or B? which procedure is preferred if the procedure must be completed within 39.5 minutes method B or either method? which produce is preferred if the procedure must be completed within 39 minutes method B or either method?
The manager of Northern Steel, Inc., wants to assess the temperature variation in the firm’s new electric furnace. It is known that temperatures are normally distributed. A random sample of 25 temperatures over a 1-week period is obtained, and the sample variance is found to be s2 = 100. Find a 95% confidence interval for the population variance temperature.
A random sample of 17 snowmobiles was selected, and the lifetime of the battery was measured. The variance of the sample was 9.7 months. Find the 95% confidence interval of the true variance. Please include all work showing how you found your answer.
The pH of rain, measured at a weather station in Michigan, was observed for 39 consecutive rain storms. The sample mean is 4.6982 and the sample variance is 0.39623. Obtain a 99% confidence interval for the mean pH of the population of storms at that location.
Submit quiz point(s) possible Construct a 95% confidence interval for H₁₂ with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances. Stats =95 mg, s₁ =3.88 mg, n₁ = 19 Confidence interval when variances are not equal (x-2)-1 Ոշ d.f. is the smaller of n₁-1 or n₂-1 Enter the endpoints of the interval. (Round to the nearest integer as needed.) x245 mg. $22.14 mg, n₂ = 12