In a fishing logde brochure, the lodge advertises that 75% of its guest catch northern pike over 20 pounds. Suppose that last summer 58 out of a random sample of 84 guests did, in fact, catch northen pike weighing over 20 pounds. Does this indicate that the population porportion of guests who catch pike is different from 75% (either higher or lower) ?  Use alpha  equal  0.05 A) state null and alternate hypotheses B) what sampling distribution will you use? C) What is the value of the sample test statistic? Round answer to 2 decimal places D) Find the P-Value to the test statistic? Round to 4 decimal places E) will you reject or fail to reject the null hypothesis? Are the data statistically significant at level apha?

Q: Is there enough evidence to support the college's claim at 5% level of significance?

A: It is given that Sample size n = 100 Number of unemployed, X = 27 Level of significance = 0.05

Q: a recent survey releved that 54% of 18 to 34 year old , 33% of 35 to 54 year old and 15% those…

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Q: The mean age of bus drivers in Chicago is 54.5 years. What is the set of hypotheses that should be…

A: It is given that, the population mean is 54.4 years. We have to write the null and alternative…

Q: The U.S. Energy Information Administration claimed that U.S. residential customers used an average…

A: Given,sample size(n)=153sample mean(x¯)=10,586standard deviation(σ)=2509α=0.05

Q: The U.S. Energy Information Administration claimed that U.S. residential customers used an average…

A: In hypothesis testing, we start by stating the null hypothesis (H0) and the alternative hypothesis…

Q: In a previous poll, 38% of adults with children under the age of 18 reported that their family ate…

A: The test statistic is -1.36 and the P-value is 0.088.

Q: In a previous poll, 38% of adults with children under the age of 18 reported that their family ate…

A: Population proportion, p = 0.38Sample size, n = 1186Number of successes, x = 428Significance…

Q: Suppose the observed value of ? is 20 and the predicted value of (? hat) is 18. What is the value of…

A: From the provided information, Observed value = 20 And predicted value = 18

Q: 4 samples from 4 populations are given, then what is the probability of getting at least one Type 1…

A: Given,  P(Type 1 error) = 0.05 ( at 95% confidence level given) Let Random variable X = no samples…

Q: A social worker claimed that in a certain village 35% of girls still get married who are less than…

A: Given claim is the 35% of girls still get married who are less than 18 years old. Null Hypothesis:…

Q: In a previous poll, 31% of adults with children under the age of 18 reported that their family ate…

A: Population proportion, p = 0.31Sample size, n = 1199Number of successes, x = 350Significance level,

Q: In a previous poll, 41% of adults with children under the age of 18 reported that their family ate…

A: Solution-: Given: x=429,n=1105,P0=0.41,α=0.05 Is there sufficient evidence that the proportion of…

Q: The National Academy of Science reported that 31% of research in mathematics is published by US…

A: Given : Hypothesized proportion : p0=0.31 Claim : Proportion is different from 0.31 . Sample size :…

Q: Although many new moms will nurse their new babies in the beginning, the Pediatrics Association…

A:

Q: Suppose that in a large class, the instructor announces that the average grade on an exam is 75.…

A: According to the definition of estimation, a sample mean is equal to the population mean.

Q: One study claimed that 87%87% of college students identify themselves as procrastinators. A…

A: Given:Sample size (n) = 174143 of them identify themselves as procrastinators. The claim is that…

Q: month tail Milk P milk for s er gallon listed in the ed in kn price for Conference on Social…

A: We want to construct a 95% confidence interval for the population mean

Q: Scenario 5 Suppose in a representative sample of adult Americans ages 26 to 32 years, 27% indicated…

A: We have given that  Sample size n=500 Sample proportion p^=27%=0.27

Q: significance? Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal…

A: It is given thatPopulation mean, μ=10941Sample mean, x¯=11425Population standard deviation,…

Q: with children under the age of 18 were selected at random, and 501 of those 1163 adults reported…

A: We have given that p = 45% = 0.45  n = 1163 x = 501 p̂ = x/n = 501/1163 = 0.4308 Significance level…

Q: The National Academy of Science reported that 37% of research in mathematics is published by US…

A:

Q: The U.S. Energy Information Administration claimed that U.S. residential customers used an average…

A:

Q: Find the test statistic, Zo Zo = (Round to two decimal places as needed.)

A: It is given that 428 of those 1186 adults reported that their family ate dinner together seven…

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A: Given, Observations are: 2, 4,3, 5, 4, 1, 1, 4 The average number of times that students are…

Q: In a test of hypothesis, the null hypothesis is that 0₁ = 02 and the alternative hypothesis is 01…

A: The data for  and  is given…

Q: An outlier is a data point that a) should sometimes be left out of a statistical analysis Ob) may be…

A:

Q: If the obtained sample mean has a z score of 1.69 and if a = .05, should you reject or fail to…

A: The given z-score is 1.69 and the alpha is 0.05.

Q: One study claimed that 92%92% of college students identify themselves as procrastinators. A…

A: Given p=0.92, n=278 and x=247

Q: In 1995, it was determined that 78% of US citizens supported a ban on household aerosols.  Thinking…

A: Given,  p = 0.78 n = 400 x = 332 Asssume α = 0.05

Q: 4) A college admissions officer takes a simple random sample of 100 entering freshmen and computes…

A:

Q: The U.S. Energy Information Administration claimed that U.S. residential customers used an average…

A: The given values are:Population mean (μ) = 10,476 kWhSample mean (x̄) = 10,767 kWhPopulation…

Q: The National Academy of Science reported that 31 % of research in mathematics is published by US…

A: p=0.31 n=188 x=74

Q: The National Academy of Science reported that 37%37% of research in mathematics is published by US…

A: The objective of this question is to test the claim that the percentage of research in mathematics…

Q: A poll in one country indicated that 48​% favor imposing the death penalty​ (the country currently…

A: Sample Size:The formula for the sample size is as follows:

Q: The U.S. Energy Iniormation Administration clalmed that U.S. residenual customers Used an average of…

A: We want to draw a conclusion and interpretation of decision

Q: In a previous poll, 35% of adults with children under the age of 18 reported that their family ate…

A:

Q: In a previous poll, 38% of adults with children under the age of 18 reported that their family ate…

A: It is given that 38% of adults with children under the age of 18 reported that their family ate…

Q: Calculate the P-value for a sample of 40 observations with a sample proportion of 0.6 if the null…

A:

Q: According to a report, 62.5% of murders are committed with a firearm. (a) If 100 murders are…

A: We have given that  p=62.5%=0.625 , q=1-p=1-0.625=0.375 n=100 X~Binomial(n=100,p=0.625)

Q: A study is to be made to estimate the proportion of residents of a certain city and its suburbs who…

A: Given: Margin of Error ME= 0.06 Confidence level c= 0.90

Q: uppose a p-value in an experiement is 0.03. At the 1% alpha level state a decision regarding null…

A: Rejection rule: If p-value is less than or equal to the level of significance, then reject the null…

Q: 4. The CEO of a large company wants to test the claim that more than 20% of the company's employees…

A: The null and alternative hypothesesare: Ho: p = 0.20Ho:p=0.20 Ha: p > 0.20Ha:p>0.20 This…

Q: Based on their records, a hospital claims that the proportion, p, of full-term babies born in the…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: The National Academy of Science reported that 33%33% of research in mathematics is published by US…

A: The objective of this question is to test the claim that the percentage of research in mathematics…

Q: The National Academy of Science reported that 41% of research in mathematics is published by US…

A: Given,n=186x=92p^=xnp^=92186=0.4946α=0.05

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.