Math

StatisticsQ&A Libraryb. Find a 95 % confidence interval of the true proportion of the sample's driver error.1-PropZInterval1-PropZlntGive the Error Bound.( . )X:n:P'ЕВР 3C-Level:N=CalculateConclusion:We are 95% Confident.....Hypothesis Test for Two MeansNO L, fr t49Go to Stats79.A student at a four-year college claims that mean enrollment at four-year colleges is higher thanat two-year colleges in the United States. Two surveys are conducted. Of the 35 two-year collegessurveyed, the mean enrollment was 5,068 with a standard deviation of 4,777. Of the 35 four-yearcolleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191.EDIT CALC TESTS2-SampTTestinpt: Data Stats2-SampTTesta 0.05Ho:H1 H2t=Sxp=Ha:M, M2x2=SyCalculateConclusion:Hypothesis Test for Two Proportions99. A recent drug survey showed an increase in the use of drugs and alcohol among local highschool seniors as compared to the national percent. Suppose that a survey of 100 local seniors and100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locallythan nationally. Locally, 65 seniors reported using drugs or alcohol within the past month, while 60national seniors reported using them.1-PropZTestp1? p22-PropZTestх1:Ho: p1 = p2Z=n1:P=x2:Ha: p1? p2P'1=n2:P'2=prop Po < po > PoCalculaten1=n2=ConclusionQuestion

Asked Nov 20, 2019

39 views

Can you please answer question 79 and write the data from the calculator in the chart and write the conclusion thank you

Step 1

Let four-year colleges be the first sample and the two-year colleges be the second sample.

**Hypotheses for the test is given below:**

Step 2

This test is a right-tailed test.

*Test statistic for t-test:*

Since population standard deviations are unknown, the appropriate test is two sample *t-*test.

Here, the sample means of four-year and two-year colleges are 5,466 and 5,068 respectively.

Sample standard deviations of four-year and two-year colleges are 8,191 and 4,777 respectively.

Sample size of both the samples are 35.

The pooled standard deviation can be calculated as follows:

Step 3

The test statistic for *t*-test is cal...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: the following MINITAB output displays presents the results of a hypothesis test for the difference μ...

A: From the provided information, consider µ1 represents the population mean of dataset A and µ2 repre...

Q: The lengths of adult males' hands are normally distributed with mean 191 mm and standard deviation i...

A: The mean of the sampling distribution of sampling mean is,By the central limit theorem the sample me...

Q: In a recent poll, 250 people were asked if they liked dogs, and 17% said they did. Find the Margin o...

A: Step-by-step procedure to obtain the value of using STATKEY:Choose Normal under Theoretical Distrib...

Q: Which variable in an experiment determines whether to use parametric or non parametric procedures?

A: There are two types of statistical tests which are appropriate for continuous data.1. Parametric tes...

Q: If the sample size is 30 for each group, there are 3 groups, and the mean score for football players...

A: Given data SSbetween = 60SSwithin = 105dfbetween = 3 dfwithin = 60α = 0.05Critical value of F is giv...

Q: THIS NOT GRADED ASSIGIMENT , IT IS AN OLD EXAM QUESTION.

A: (a) According to the provided data,

Q: Listed below are the lead concentrations in μg/g measured in different traditional medicines. Use a...

A: Given data set3.5, 22, 16.5, 4, 13, 2.5, 11, 18.5, 20, 11.5.n = 10 and Alfa (level of significance) ...

Q: Women N Mean Standard Deviation New Drug 40 38.88 3.97 Placebo 41 39.24 4.21 Men N Mean St...

A: From the given information, the claim of the test is testing whether there a significant difference ...

Q: 12.Why would it be easier to find significance using a p value of .05 than a p value of .01?

A: It is easy to find significance using p value at 0.05 than p value at 0.01.Because, based on the sit...