A hypothesis was done using Ho: p=15% HA: p>15% The hypothesis test where p= the percentage of Americans who regularly listen to music that have hearing loss. The hypothesis test used alpha= .01 and the p-value of the test was .0007. The correct conclusion for this test is

Q: The director of student services at Oxnard College is interested in whether women are more likely to…

A: Here two proportion  Z test is applicable

Q: At 5% level of significance, using the information: X,= 47; S1= 4; n1=11; X2= 39; S2= 3; n2= 11,…

A:

Q: The director of student services at Oxnard College is interested in whether women are just as likely…

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Q: If my experimental hypothesis were: "Eating cheese before bed affects the number of nightmares you…

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Q: A chi-square test of significance is being used at level a = 0.01 to determine if there is some…

A: The rejection rule using p value is such that: We reject the null hypothesis H0 if the p value is…

Q: I need some help explaining how to do this. I guessed on the answer

A: Null hypothesis: Subject and location of school are independent. Alternative hypothesis: Subject and…

Q: Only about 15% of all people can wiggle their ears. Is this percent different for millionaires? Of…

A:

Q: The director of student services at Oxnard College is interested in whether women are just as likely…

A:

Q: Nonparametric: A small study is conducted to compare birth weight in babies born to mothers who do…

A: Non smoker = sample (1) = n1 = 6 Heavy smoker = sample (2) = n2 = 8 First we put both samples…

Q: A computer manufacturer believes that the proportion of hardware malfunctions is different in humid…

A: Solution: The given claim is that the proportion of hardware malfunction is different in humid…

Q: Use the data below to test the claim that the weight loss was greater with the low fat diet compared…

A: x¯1=4.7, s1=7, n1=77x¯2=3.5, s2=6.9, n2=52 Claim : the weight loss was greater with the low fat diet…

Q: Find the value of the standard score, z, and determine whether to reject the null hypothesis at a…

A: Given: Population standard deviation σ=1.3 Sample mean x¯=17.9 Sample size (n) = 100 Hypothesized…

Q: The proportion of mango trees on an island that produce only dwarf fruit is p1. The proportion of…

A: The proportion of mango trees on an island that produce only dwarf fruit is p1.  The proportion of…

Q: The median pH level of the rain in a certain county, was 4.90. A biologist obtains a random sample…

A: Given: α=0.05 5.08 5 4.66 5.07 4.7 4.66 4.87 5 4.91 5.05 4.73 4.6 5.03…

Q: The rate of allergies in children was 15% in 2002. A medical researcher is curious whether advances…

A: Denote p as the true rate of allergies in children.

Q: A nutritionist compared the effectiveness of an online diet program to that of an inperson diet…

A: The control group (in-person) lost a mean of 18.00 pounds (s = 14.50, n = 16) and the experimental…

Q: Test the claim that the mean GPA of Orange Coast students is larger than the mean GPA of Coastline…

A: The most used tests in the hypothesis test are the z test, t-test, and chi-square test. Based on the…

Q: In hypothesis testing, the common level of significance is a = 0.05. Some might argue for a level of…

A: The Null Hypothesis is  a hypothesis that the proportion equals to a particular value and the…

Q: Which of the following would be most appropriate for investigation with a two-way table and a chi…

A: 1): The chisquare test of  Independence determines whether there is an association between…

Q: The researcher wanted to be sure that her manipulation for job insecurity actually influenced her…

A: The test is to check whether employees in the 50% layoff condition perceived their chances of being…

Q: Molly works for a meat producer, and she needs to determine whether containers of ground beef have…

A: Definition of p-value: It is the probability of obtaining the results as extreme as the observed…

Q: Use the following information to answer the question. A random sample of 54 students from Cabrillo…

A: we have given that   n=54  , mu=20 , sigma =5 and sample mean =21  and level of significance…

Q: A study compared the LPO between obesity group and normal group, Table LPO between obesity group and…

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

Q: Can you tell me if my answer to this question on my homework assignment is correct and provide an…

A: Here A hypothesis test of a clinical trail has done comparing a new pain reliever for arthritis to a…

Q: Did survival rate for passengers on the Titanic really depend on the type of ticket they had?…

A: H0: Survival and ticket class are independent H1: Survival and ticket class are not independent.

Q: State the null and alternative hypothesis: 1. An aerobics instructor believes that regular exercise…

A: 1. Here, we have to test the significant association between regular exercise and each of the…

Q: null and alternative hypothesis would be

A: Here , we want to test the claim that the proportion of men who own cats is significantly different…

Q: b) The table below shows the color and the model of cars purchased by 160 randomly selected…

A: Solution-: Given: \chi^2_{Stat}=2.1183 We find , (ii) p-value=? (iii) Conclusion (iv) State…

Q: As a result of dog breeding for certain physical traits, many dog breeds have changed in the last…

A: Option d) is correct. Test for a difference in two population means.

Q: A reşearcher hears a study report that 30 percent of Americans are obese, and he wants to test that…

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Q: A study was conducted simultaneously in two different communities in New York City to examine an…

A: p-value: A p-value is used to measure the probability to obtain the results and the assumption was…

Q: In a separate experiment, a significance test was performed to test the null hypothesis `H_o`: `\mu`…

A: From the provided information, Sample size (n) = 81 The hypotheses are as follow: H0: µ = 24.56 Ha:…

Q: The table below shows the color and the model of cars purchased by 160 randomly selected customers…

A: For the given data Perform Chi square test

Q: Is a person's favorite pizza topping dependent on their gender? A random sample of pizzas ordered…

A: In this case, it is needed to check whether the pizza topping preference is independent of gender.

Q: A cat food manufacturer claims that 9 out of 10 cats prefer their food. A test with 250 cats was run…

A: The 95% confidence interval for the proportion of the cats that prefer the brand tested is (0.456,…

Q: Find the value of the standard score, z, and determine whether to reject the null hypothesis at a…

A:

Q: Test the claim that the proportion of men who own cats is significantly different than 35% at the…

A: Givenn=55x=255p^=xn=25555=4.6364p=0.35significance level(α)=0.2

Q: Molly works for a meat producer, and she needs to determine whether containers of ground beef have…

A: Definition of p-value It is the probability of obtaining the results as extreme as the observed…

Q: An independent-measures research study uses n = 15 participants in one group and n = 12 participants…

A: Solution: From the given information, number of participants in one group is 15 and the number of…

Q: A small study is conducted to compare birth weight in babies born to mothers who do not smoke to…

A: H0: The two populations are equal versus H1: The two populations are not equal.

Q: A one- sample t test is used with a sample of 60 scores. The degrees of freedom for this t score are…

A: According to the provided data, a one-sample t-test is used. The sample size, n is provided as 60.

Q: Test the claim that the mean GPA of night students is significantly different than 2.3 at the 0.05…

A: One sample t-test: One sample t-test is used to test the significance difference between population…

Q: The director of student services at Oxnard College is interested in whether women are less likely to…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A political pollster conducted a study to determine political party loyalty. To do so, he selected a…

A: Given Information : A political pollster conducted a study to determine political party loyalty. To…

Q: A test of H₂: H=50 versus H₁M #50 is performed using a significance level of α = 0.01. The value of…

A:

Q: In the experiment, a group of college students was told that they were participating in a manual…

A: Let X denotes the ratings of pain after counting money.   & Y denotes the ratings of pain after…

Q: Find the p-value that corresponds to the given standard score, and determine whether to reject the…

A: Given Information: Significance level α=0.10 Z-score = 0.9 Null Hypothesis : H0:μ=136 Alternative…

Q: Test the daim that the proportion of men who own cats is significan tly different than the…

A: Given data: Significance level = 0.02

Q: In one study of smokers who tried to quit smoking with nicotine path​ therapy,38 were smoking one…

A: Answer:-  Here we have to test the claim that among smokers who try to quit with nicotine patch​…

Q: Using a sample that has n=50 palr of data, we get a correlation coefficient r=-0,269 for the…

A: Given, n = 50 r = -0.269