If the P(A) = 1/2, the P(B) = 3/8, and the P(A and B) = 1/16, what is the P(A or B)? (SHOW WORK)

Q: After conducting a one-sample Z-test, you arrived at a value of -12.5 for the z value. What is your…

A:

Q: In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the…

A: Given that  Sample size n =1160 Favorable cases x =897 Sample proportion p^=x/n  =897/1160 =0.7733

Q: A national health survey weighed a sample of  530  boys aged  6 - 11  and found that  78  of…

A: Given : Claim : The proportion of boys who are overweight is greater than the proportion of girls…

Q: The Old Farmer’s Almanac stated that the average consumption of water per person per day was 123…

A: Given:               Hypothesis :                                 Under The null hypothesis, the…

Q: A researcher rejected the null where r(146) = .148, p = .03 and concluded that the effect size was

A: Reviewing information, Given that, r=0.148p=0.03

Q: s, the following 2 → 2 tables were ol arance of gallstones) versus no resp Negativ Positive

A: negative positive total plasibo  a c a+c ursodiol b d b+d total a+b c+d a+b+c+d…

Q: What does tobs = 3.47 mean? What does tcrit = 3.47 mean? If the ƞ2 in an experiment is 0.6, give…

A: Tobs : - Tobs is the statistics calculated for the observed data and let T represent the sampling…

Q: A researcher rejected the null where r(146) = .148, p = .03 and concluded that the effect size was…

A: Conditions: If the value of r lie between 0.1 to 0.3 then the effect size is small. If the value of…

Q: What is the z-score of x, when x = 11 and X ~ N(8,1)? (round to nearest hundredth) If your answer…

A: Introduction: Consider X as a normally distributed random variable, with mean μ and standard…

Q: Find the z-score if the area to the right of z is .3523 and area to the left of –z is 0.3342.

A: Standard normal score: The standard normal score follows a normal distribution with mean 0 and…

Q: Suppose X - N(-1, 2). What is the z-score of x = 2?

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Q: n automobile owner found that 20 years ago, 74% of Americans said that they would prefer to purchase…

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Q: A multinational firm hired a consultant to determine if the workers in their domestic plants were…

A: Given Information : A multinational firm hired a consultant to determine if the workers in their…

Q: How can I compute P-value?

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Q: The t test for the difference between the means of 2 independent populations assumes that the…

A: We have given that  The t test for the difference between the means of 2 independent populations…

Q: A researcher rejected the null where r(98) = .770, p < .001 and concluded that the effect size was…

A: Conditions: If the value of r lie between 0.1 to 0.3 then the effect size is small. If the value of…

Q: 8. Suppose a sample of 300 participants is classified into one of 4 categories or 'items'. If the…

A: Solution: Note: Hello! As you have posted 2 different questions, we are answering the first question…

Q: an IQ higher than 90% of the population was obtained by taking the webchers IQ test, what is the IQ…

A: Given: Population mean IQ score using Stanford Binet intelligence test μ = 100 Population standard…

Q: Is a value of r=0.75 from a sample of 100 more significant than a value of r=0.30 from a sample of…

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Q: the - 10, the sample size is 5% of the population size, and the sample Because npo (1- Po) = v…

A: Given:  Population proportion P =0.58 Sample size n  = 350 X = 210 Sample proportion p = x /n = 0.6…

Q: A graduate student in leisure studies wants to know the short-term effect of a 4-day bicycle tour on…

A: The different types of t test for two samples are: independent samples t test dependent samples t…

Q: If a hypothesis test is a two-tailed test and the test statistic is t = 2.687 when n = 19, what is…

A: Given . If a hypothesis test is a two-tailed test and the test statistic is t = 2.687 when n = 19,

Q: a) Mr. Kashif got an average of 50 in 6 tests. What should he get in the next test to obtain the…

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Q: I need to find the z-score of p72

A: Here, p72 represents the 72 percentile.

Q: If the test result is significant at 5% level, it must also be significant at 1% level. True O False

A: Given : Significance level , α = 0.05

Q: Suppose that your friend sees the results from question 4 and concludes that heavier drinking causes…

A: Correlation between two variables measure the strength and direction between two variables. It…

Q: In a study of jury behavior, two samples of participants were provided details about a trial in…

A: According our policy we can answer only first three subpart for remaining please repost the…

Q: Suppose X ~ N(18, 4). What value of x has a z-score of -2.52? Round to 2 decimal places..

A: Given :- X ~ N(18, 4).  Than we have to find the value of x has a z-score of -2.52.

Q: Genesis wants to invest his money in a fast food restaurant. There is a 38% chance of losing…

A: The percentage of losing of 40000 is 38%. The percentage of profit of 550000 is 30% The percentage…

Q: Is the difference of means significant ? The value of t for 9 degress of freedom at 5% level is 2.26

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Q: To test the claim that american quarters are biased towards heads, suppose you flip an american…

A: Introduction: Denote p as the true probability or proportion of obtaining heads on flipping the…

Q: p-value of the test is

A: Given- Sample size (n)=10 Sample mean (x)=27 Sample standard deviation =5.5 Population standard…

Q: What is the purpose of testing whether ᵝ1=0? If we reject ᵝ1=0, does it imply a good fit?

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Q: In a one-tail test, the p-value is found to be equal to 0.0026. If the test had been two-tailed, the…

A: Here use basic concepts of p value

Q: How to Compute t and p for the difference between means?

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Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.35…

A: The z-test determines the claim about one population proportion.

Q: ruce was reading an article.  In the Methods section it said that a within subjects ANOVA was…

A: It is given that k-1=8.

Q: Suppose that the blood pressure for a randomly selected patient has an average of 22 and variance of…

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Q: What is t critical for a study that contains 9 participants in one group and 11 is another group?…

A: Solution-: Given: We want to find critical values for situation

Q: t for a Pearson’s r between students’ anxiety and their achievement was, r(90) = - .75, p = .03.…

A: The range of the correlation coefficient lies between -1 to 1, inclusive. For a perfect correlation,…

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A: Statistical tests are basically used to calculate the test statistics and p-value which is…

Q: At a local pool, a new swimming instructor (Teacher 1) is being evaluated by how many of his…

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Q: discuss the differences between Simple vs Factorial Designs, with examples. Elaborate when you would…

A: Simple Factor Design:  In simple factor, design helps in observing result on the basis of a single…

Q: Genesis wants to invest his money in a fast food restaurant. There is a 38% chance of losing…

A: Based on the information given in the question, we have:- Chance of losing P400000 with probability=…

Q: The claim is that for 12 AM body temperatures, the mean is > 98.6F. The sample size is n=6 and the…

A: Given: μ = &gt;98 n = 6 test statistic = 1.929

Q: And determine the p-value on both questions

A: From provided information, it is claimed that mean lead concentration is for medicine is less than…

Q: Does this convince you of ESP

A: ESP- A controversy about experiments in extra-sensory perception throws some light, and maybe some…

Q: A new diagnostic test for tuberculosis has a sensitivity of 90% and a specificity of 95%. If applied…

A: Explanation:Here given the population , sensitivity,and specify values  Asking how many false…