The proportion of mango trees on an island that produce only dwarf fruit is p1. The proportion of mango trees on a different island that produce only dwarf fruit is p2. What is the null hypothesis for a test to determine if the proportions are different between the two islands? Select the correct answer below:   H0: p1−p2≠0   H0: p1−p2=0   H0: p1−p2>0   H0: p1−p2<0

Q: A city office has previous records indicating that 18% of cars have received parking tickets at some…

A: Given Information: 18% of cars have received parking tickets at some point. A new program was…

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: Statistical tests are used to calculate the test statistics which is eventually used to determine…

Q: The Northwest Missourian reported that 17% of all Northwest students attended a Northwest Encore…

A:

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A: Given that n =150 ,p = 0.31

Q: In a survey, 36% of the respondents stated that they talk to their pets on the telephone. A…

A:

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A: a) The given information states that an automobile manufacturer is assuming robots for part of its…

Q: In a sample of 49 men, 38 said that they had less leisure time today than they had 10 years ago. In…

A: The claim is that there is a difference in the proportions.

Q: In each of Exercises, we have provided a null hypothesis and alternative hypothesis and a sample…

A:

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A: The provided information is   n=50 α=0.01 1. The null hypothesis is Ho:µ=40 E. = 2. The alternative…

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A: Decision rule :Reject Null hypothesis if z statistic &gt; zα/2 critical value at α level of…

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Q: A large fishing farm with thousands of fish has been treating its fish to stop a spreading fungal…

A: Given:

Q: g. With which p level-0.05 or 0.01 reject the null hypothesis? Explain.

A: While conducting a Z-test, the 6 steps of hypothesis testing are: i) Identifying the population and…

Q: A One-Sample t-test is conducted and the APA summary is t(200) = 5.02, p < .05. The effect size was…

A: Hypothesis test are used to compute whether the null hypothesis rejected or not. Hypothesis is the…

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A:

Q: Generally speaking, would you say that most people can be trusted? A random sample of n1 = 254…

A: Determine the level of significance. Significance level:  In order to decide how small the p-value…

Q: In a survey, 41% of the respondents stated that they talk to their pets on the telephone. A…

A: It is given that, p0 is 0.41, the sample size n is 210.

Q: The proportions of blood phenotypes in the U.S. populationare as follows:A B AB O.40 .11 .04…

A: Consider the probability density table, Phenotype A B AB O Probability 0.40 0.11 0.04 0.45…

Q: A large national union claims that the proportion of women in the union is significantly different…

A: Denote p as the true proportion of women in the union.

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: Here we need to calculate the value of the Z statistic.

Q: In a recent survey, it was stated that Americans watch television on average four hours per day.…

A: It is provided that the sample mean is 40. As the average time of watching television can never be…

Q: With a p value of .04 and an ⍺ of .05, should you reject or fail to reject the null hypothesis?"

A: Given that: p-value= 0.04 ⍺=0.05

Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: From the provided information, Sample size (n) = 273 From which 63 said they smoked to stay thin.

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A: Decision Rule: Reject the null hypothesis, if the effect size is greater than 0.8.

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A: Test hypothesis: Denote the population proportion of students at a local university who had read at…

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A: a)The test hypotheses are,

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Q: With H1: p < 0.32, a test statistic is z = -1.23.  Use a 0.01 significance level to find the…

A: Given that,null,  Ho:p=0.32  alternate,  H1: p&lt;0.32level of significance, alpha = 0.01

Q: rarely eat three meals a day. Usually Eat 3 Meals a Day| 3 Meals a Day Rarely Eat Male 25 22 Female…

A: The observed values table is   Usually Rarely Row totals Male 25 22 r1=47 Female 37 52 r2=89…

Q: The level of significance for a hypothesis is 0.01. If you compute a p-value of 0.0157 what decision…

A: Level of significance = 0.01 p-value = 0.0157

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A: We have the values,  Xbar = 67.1 and ? = 18.3  And n = 36 . We have to find p-value ?

Q: The p-value for a hypothesis test turns out to be 0.04836. At a 5% level of significance, what is…

A: It is given that the p-value is 0.04836.

Q: When having a baby, assume that the probability of having a boy is 50% and the probability of having…

A: Amswer: See the answer below:

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: given  P0 =0.37 n=170

Q: In a survey, 43% of the respondents stated that they talk to their pets on the telephone, A…

A: The hypothesized proportion is 0.43.

Q: Marco conducts a hypothesis test and calculates that his sample results have a p-value of .052, what…

A: Let us assume that level of significance, α=0.05 Given, p-value =0.052

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A:

Q: The p-value was reported to be small, so we would reject the null hypothesis at a 5% level and…

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Q: A polling company conducted a hypothesis test to see if people are happy with the government, and…

A: Given : A polling company conducted a hypothesis test to see if people are happy with the…

Q: If a hypothesis test were conducted using a 5% level of significance, for which of the following…

A: From the above data. If a hypothesis test were conducted using a 5% level of significance, for which…

Q: In each of Exercises, we have stated the purpose for performing a hypothesis test to compare the…

A: a)The test hypotheses are,

Q: If I calculate a z test statistic of 4.84, and my α=0.05, what decision should I make about the…

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Q: Lillie conducts a hypothesis test and calculates that her sample results have a p-value of .0043,…

A: Given: p value = 0.0043 Assumed level of significance α=0.05

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A:

Q: A fast-food restaurant claims that a small order of french fries contains 120 calories. A…

A: H0: μ = 120 H1:μ &gt; 120 ________________________ When Ho is true , P-value is the probability that…

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.