Population 1Population 2n292345.142.3S5.312.4 Use the given statistics to complete parts (a) and (b). Assume that the populations are normally distributed.(a) Test whether u, P2 at the =0.05 level of significance for the given sample data.(b) Construct a 90% confidence interval about u, -P2-(a) Identify the nul and alternative hypotheses for this test.OA. Hg P2OB. Hgi P=V2H H2OE Hoi V2OC. H: H2H "P2OD. Hg 2OF. H FV2H: H2Find the test statistic for this hypothesis test.(Round to two decimal places as needed.)Determine the P-value for this hypothesis test(Round to three decimal places as needed.)State the conclusion for this hypothesis test.O A. Do not reject Hg. There is suficient evidence at the a=0.05 level of significance to conclude that p,2OB. Reject Hg. There is sufficient evidence at the a=0.05 level of significance to conclude that , 2OC. Do not reject Hg. There is not sufficient evidence at the e0.05 level of significance to conclude that p, >H2OD. Reject Hy. There is not suficient evidence at the a= 0.05 level of significance to conclude that ay P2(b) The 90% confidence interval about u, H2 is the range from a lower bound ofto an upper bound of(Round to three decimal places as needed.)

There are two independent populations. We have to test whether the population mean 1 is greater than…

Use the given statistics to complete parts (a) and (b). Assume that the populations are normaly distributed. (a) Test whether a the .os level of significance for the given sample data (b) Construct a 90% confidence interval about , "Pa- (a) ldentify the nul and altemative hypotheses for this test OA H P2 OB H OC. H H, "Pa OE Hmt H "Pa OD. H OF. Hn Find the test statistic for this hypothesis test. (Round to two decimal places as needed) Delermine the Pvale tor mis hypolhesis test. (Round to three decimal places as needed) State the condusion for this hypothesis test OA Do not reject Hy, There is sufficient evidence at the a-0.05 level of significance to condude that p OB. Reject H. There is suficient evidence at the a=0.05 level af significance to conclude that y, 2 OC. Do not reject Hg. There is not sufficient evidence at the a-0.05 level of significance to conclude that p P2- OD. Reject H. There is not suficient evidence at the a=0.05 level of significance to conclude that P2 (b) The 90% confidence interval about P "Pa is the range from a lower bound of to an upper bound of (Round to three decimal places as needed.)

Use the given statistics to complete parts (a) and (b). Assume that the populations are normaly distributed. (a) Test whether a the .os level of significance for the given sample data (b) Construct a 90% confidence interval about , "Pa- (a) ldentify the nul and altemative hypotheses for this test OA H P2 OB H OC. H H, "Pa OE Hmt H "Pa OD. H OF. Hn Find the test statistic for this hypothesis test. (Round to two decimal places as needed) Delermine the Pvale tor mis hypolhesis test. (Round to three decimal places as needed) State the condusion for this hypothesis test OA Do not reject Hy, There is sufficient evidence at the a-0.05 level of significance to condude that p OB. Reject H. There is suficient evidence at the a=0.05 level af significance to conclude that y, 2 OC. Do not reject Hg. There is not sufficient evidence at the a-0.05 level of significance to conclude that p P2- OD. Reject H. There is not suficient evidence at the a=0.05 level of significance to conclude that P2 (b) The 90% confidence interval about P "Pa is the range from a lower bound of to an upper bound of (Round to three decimal places as needed.)

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: Six 3-year-old sheep were injected with an antibiotic. Their blood serum concentrations of…

A: Let X1, X2, ...., Xn be a random sample of size n from a population with mean and variance unknown.…

Q: An IQ test was administered to twelve students and the scores were as follows: Student 1 2 3 4 5 6 7…

A: 1) The mean and standard deviation is The confidence interval is 2) The interval width is given…

Q: Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the…

Q: Consider the data. xi 3 12 6 20 14 yi 60 40 65 5 15 1) Find the test statistic: #2) Use the…

A: ANOVA, which stands for Analysis of Variance, is a statistical test used to analyze the difference…

Q: A one-way analysis of variance experiment produced the following ANOVA table. (You may find it…

A: GroupsCountAverageColumn 16324Column 26335Column 36318Column 46318Source of…

Q: The table below shows the income (X) and expenditure (Y) data for 10 households. Please answer the…

Q: Which of the following are assumptions for a repeated measures ANOVA (select all that apply)? a.…

A: A repeated measures ANOVA : It is used to determine if difference between groups

Q: As part of a water quality survey, you test the water hardness in several randomly selected streams.…

Q: The data below are yields for two different types of corn seed that were used on adjacent plots of…

Q: The results of a mathematics placement exam at two different campuses of Mercy College follow:…

A: From the provided information,

Q: In a manufacturing process, a random sample of 19 manufactured bolts has a mean length of 3.2 inches…

Q: B. Construct a 95% confidence interval estimate of 4-4, the difference between the mean weight of…

A: Given Information: B) 95% confidence interval estimate of difference between the mean weight of…

Q: A paired difference experiment produced the following data information: 16, 1 = 28.9, 2 = 25.7, sd=…

A: Given: x¯1=28.9x¯2=25.7sd=8.76nd=16

Q: C2. Average years of education are reported by social class based on data from the GSS 2018 Mean…

A: Given: L: Lower class W: Working class M: Middle class U: Upper class

Q: The data below are yields for two different types of corn seed that were used on adjacent plots of…

A: Confidence interval for difference of 2 means is given by, Where Xbars are mean and sigam^2 are…

Q: Scott analyzed language proficiency scores for students who were learning Chinese. Students were…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case…

Q: Which of the following levels of variability (standard deviation or variance) would most likely…

A: The platykurtic curve has shorter peak and thinner tail compared to normal distribution. The excess…

Q: The NCAA is interested in estimating the difference in mean number of daily training hours for men…

A: Solution: Given information: n1=10 Sample size of men n2= 10 Sample size of women x1= 2.7 hours…

Q: The margin of error for the middle interval which captures 95% of the means from samples of size ? =…

A: Now consider the textbook expense of all IUPUI students. The mean and variance of textbook expense…

Q: Use the sample information X = 36, o= 7, n= 16 to calculate the following confidence intervals for µ…

A: (a). Find the 90% confidence interval for the population mean µ: Denote the population mean as µ.…

Q: Construct a 95% confidence interval for p1 - p2. The sample statistics listed below are from…

Q: A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements…

Q: What is the 95% confidence interval for the difference in the population means using paired samples…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: C2. Average years of education are reported by social class based on data from the GSS 2018. Mean…

Q: Construct a 95% confidence interval for the true difference in mean scores for these two groups.…

A: From the given information, the first sample size is 40; sample mean is 272, population standard…

Question

Population 1
Population 2
n
29
23
45.1
42.3
S
5.3
12.4

Use the given statistics to complete parts (a) and (b). Assume that the populations are normally distributed.
(a) Test whether u, P2 at the =0.05 level of significance for the given sample data.
(b) Construct a 90% confidence interval about u, -P2-
(a) Identify the nul and alternative hypotheses for this test.
OA. Hg P2
OB. Hgi P=V2
H H2
OE Hoi V2
OC. H: H2
H "P2
OD. Hg 2
OF. H FV2
H: H2
Find the test statistic for this hypothesis test.
(Round to two decimal places as needed.)
Determine the P-value for this hypothesis test
(Round to three decimal places as needed.)
State the conclusion for this hypothesis test.
O A. Do not reject Hg. There is suficient evidence at the a=0.05 level of significance to conclude that p,2
OB. Reject Hg. There is sufficient evidence at the a=0.05 level of significance to conclude that , 2
OC. Do not reject Hg. There is not sufficient evidence at the e0.05 level of significance to conclude that p, >H2
OD. Reject Hy. There is not suficient evidence at the a= 0.05 level of significance to conclude that ay P2
(b) The 90% confidence interval about u, H2 is the range from a lower bound of
to an upper bound of
(Round to three decimal places as needed.)

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2: (a)

Step 3

Step 4: (b)

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Equality of Variances$

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

Construct a confidence interval for the mean of the paired differences for the two populations with the following information. Round the endpoints of the interval to three decimal places, if necessary. n=37n=37, d¯=2.191d¯=2.191, α=0.1α=0.1, sd=0.411sd=0.411
Both students with the rural and urban background in a college music appreciation course are given an aptitude test on the first day of class. Make any necessary assumptions and construct a 99% confidence interval for the difference in music attitude if the summary of the experiment is as follows: type sample size average apitude score standard deviation Rural 9 71.4 4.1 Urban 14 86.2 3.8 A. (-18.41, -11.19) B. ( -19.54, -10.06) C. ( -18.28, -11.32) D. (-19.19, -10.41)
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. Subjects are given a creativity exercise on a computer with either a red background or a blue background. The scores are shown in the table. At the 0.01 significance level, test the claim that blue enhances performance on a creative task. Red Background Blue Background n1 = 41 n2 = 44 xˉx̄1 = 19.2 xˉx̄2 = 18.7 s1 = 0.88 s2 = 0.35 What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)H0: Select an answer μ(blue) s₁² μ₂ p₂ p̂₁ σ₁² p μ₁ x̄₂ μ x̄₁ p₁ ? < ≥ ≠ ≤ = > Select an answer p₁ μ s₁² σ₁² μ₂ p₂ x̄₁ p̂₁ μ(red) μ₁ p x̄₂ H1: Select an answer x̄₁ x̄₂ p₁ μ₁ μ μ(blue) p p₂ σ₂² s₂² p̂₂ μ₂ ? ≤ < = ≥ ≠ > Select an answer σ₁² x̄₂ p₁ x̄₁ μ₁ p p₂ μ μ₂ p̂₁ s₁² μ(red) Original Claim = Select an answer H₁ H₀ df = Based on…
Decide which of the following statistical procedureswould most likely be used to answer the research questions posed:a independent samples t-testb analysis of variancec single sample t-testd paired samples t-teste construct a confidence interval 14. Do scores on a test of science achievement differ for female and male 8th grade students? 15. A group of office mates decide to go on a diet. They each measure their weight pre-diet and providetheir ideal weight. After the dieting plan a few months later, each person is weighed. Is there a differencepre-dieting and post dieting?
Construct a confidence interval for the ratio of the population variances given the following sample statistics. Round your answers to four decimal places. n1=9, n2=18, s1^2/s2^2=1.17, a=0.1
Treatment Placebo 3. H1 H2 table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. A study was done using a treatment group and a placebo group. The results are shown in the 27 40 In 2.39 2.65 0.95 0.57 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? O A. Ho: H1 = H2 O B. Ho: H1H2 D. Ho: H1 H2 The test statistic, t, is (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion for the test. O A. Fail to reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. O B. Reject the null hypothesis. There is not sufficient evidence to warrant rejection…
A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval for the mean of the "before-after" differences. Does hypnotism appear to be effective in reducing pain? Before After 6.3 6.8 2.4 7.3 11.8 8.3 7.5 3.4 5.4 2.3 7.9 8.6 8.1 6.3 3.3 2.7 Construct a 95% confidence interval for the mean of the "before-after" differences. -0.40
The following table contains information on matched sample values whose differences are normally distributed. (You may find it useful to reference the appropriate table: z table or t table) Number Sample 1 18 Sample 2 20 2. 13 12 3 22 21 4 22 21 16 22 15 19 7. 18 16 8. 16 21 Let the difference be defined as Sample 1- Sample 2. a. Construct the 95% confidence interval for the mean difference un. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) Confidence interval is to
Please see the screen shot and help
Help me please
Which is not one of the major assumptions typically associated with parametric tests of significance? A. Random Selection B. Homogeneity of Variance C. Absence of restricted ranges
The data below are yields for two different types of corn seed that were used on adjacent plots of land. Assume that the data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval estimate of the difference between type 1 and type 2 yields. What does the confidence interval suggest about farmer Joe's claim that type 1 seed is better than type 2 seed?Type 1 2143 2024 2142 2433 2142 2034 2211 1484 Type 2 2089 1924 2078 2467 2132 1949 2197 1482