What is our decision for a goodness of fit test with a computed chi-square value of 12.34 and a critical value of 10.355?

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Given,sample proportion(p^)=0.16margin of error (E)=0.02α=1-0.995=0.005α2=0.0025Z0.0025=2.807

Q: A laboratory technician is interested in the proportion of 1-liter containers used in the lab that…

A:

Q: Calculate the value of r and test if there is a significant relationship between age of persons and…

A: Solution: X Y (X-X) (Y-Y) (X-X)2 (Y-Y)2 (X-X)(Y-Y) 11 40 -4.5 -4.4 20.25 19.36 19.8 12 42…

Q: What is the critical value tc for the level of confidence c=0.95 and sample suze n=12?

A:

Q: Assume the given confidence interval for the population mean height of Sequoia trees in Sequoia…

A: The confidence interval is (73.5, 78.7).

Q: A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many…

A:

Q: You intend to estimate a population mean with a confidence interval. You believe the population to…

A:

Q: A Fabric is unsuitable for dyeing if its water pickup is less than 56%. Data set of % pickup values…

A: Sample mean=56.80 Sample standard deviations =4.50 Sample size=29 Alpha=0.05

Q: A random sample of vehicle speeds were collected. Use the data to test the claim that the mean…

A:

Q: Check Your Progress an arena, steel bars with a mean ultimate tensile strength of In building 400…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: We have to find out answer of given question....

Q: A statistics student is interested in estimating the percentage of college students that prefer hot…

A:

Q: Determine the minimum required sample size if you want to be 90% confident that the sample mean is…

A:

Q: For a confidence level of 90% with a sample size of 10, find the critical t value.

A: n = 10 Degrees of freedom = df = n - 1 = 10 - 1 = 9 At 90% confidence level the t is ,

Q: The mean number of eggs per person eaten in the United States is 253. Do college students eat less…

A: From the provided information, Sample size (n) = 69 Sample mean (x̅) = 230 Standard deviation (s) =…

Q: test the claim that the mean amount of liquid in Coke cans is greater than the mean amount of liquid…

A: Claim is that the mean amount of liquid in Coke cans is greater than the mean amount of liquid in…

Q: please answer all parts

A: PLAN:Name the inference procedure and check the conditions. Select the 4 statements that are…

Q: A confused Stat Professor claims the mean height of men is equal to 66". His students take a sample…

A: we have given that  The  sample mean is \bar X = 68.5Xˉ=68.5 and the sample standard deviation is s…

Q: The mean number of eggs per person eaten in the United States is 224. Do college students eat less…

A: 5). The null and alternative hypotheses are:

Q: If the population standard deviation equals 10 and the level of confidence equals 95%, how large…

A: Determine the sample size n needed. Here, confidence level is 0.95. Use EXCEL Procedure for…

Q: True or False If the comparison wise type I error is set at 0.05, then the experiment wise type I…

A: #True or False If the comparison wise type I error is set at 0.05, then the experiment wise type I…

Q: If you want to be 99% confident of estimating the population mean to within a sampling error of ±6…

A: Obtain the sample size needed.   The sample size needed is obtained below as follows : Use EXCEL…

Q: Zobt of 3.33 falls in the Critical Region (Rejection Region) with Zerit of| Therefore, the result…

A: The observed test statistic is,

Q: What statistical output would I use? Chi square goodness of fit?

A: here we have to compare observed results with expected results.

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: This question requires an accurate answer. Hence i will use excel to solve this question.…

Q: ccompanying data table lists leading digits of 317 inter-arrival Internet traffic times for a…

A: a) Null and alternative hypotheisis Ho: Leading digits of inter-arrival internet traffic follow…

Q: In the space provided, show all work to make your conclusion. Be sure to include null and…

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Q: The mean number of eggs per person eaten in the United States is 253. Do college students eat less…

A:

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A:

Q: 4. How large a sample must be taken to estimate the proportion of households in which a cell phone…

A: In probability theory, a normal distribution is a type of continuous probability distribution for a…

Q: Suppose that you want to perform a hypothesis test for a population mean. Assume that the population…

A: For testing population mean: If sample size is small and the population is normally distributed…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Confidence Interval:- Confidence Intervals are often used with a margin of error. The margin of…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Given : Given Data : Margin of error, ME =0.2 % =  0.002 sample proportion,…

Q: A nutritionist wants to estimate the mean amount of cholesterol in a certain variety of chicken…

A: Given Data: Level of significance=0.01  σ=25mg ME=10   To Find: 'n'

Q: For a confidence level of 99% with a sample size of 11, find the critical t value.

A: Given that: Confidence level=99% Sample size, n=11

Q: What would the critical value be for a Chi-Square test with degree of freedom = 5 and and alpha…

A: Given:

Q: A doctor wants to estimate the mean HDL cholesterol of all​ 20- to​ 29-year-old females. How many…

A: The formula for the sample size is as follows: n=zα2×σE Here, zα/2 is the critical value at 99%…

Q: he population standard deviation for the heights of dogs, in inches, in a city is 3.7 inches. If we…

A: Given :  The population standard deviation for the heights of dogs, in inches, in a city is 3.7…

Q: (a) Known Information: Za/2 ; E = (b) Desired Sample Size

A: Joshua wants to replicate a study where the lowest observed value is 12.4 while the highest is 12.8.…

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.