About 42.3% of Californians and 19.6% of all Americans over age five speak a language other than English at home.  A recent survey of 962 North Carolinians indicated that 17.4% of those sampled speak a language other than English at home.  Test the claim that the percentage of North Carolinians that speak a language other than English at home is significantly different from the rate of all Americans that speak a language other than English at home.  Test this claim at the .02 level of significance. what is the test statistic and the p-value

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A: We have to find value of test statistics.

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A: Given Data n1 = 522 x1 = 202 n2 = 505 x2 = 171

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A:

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A: Given,

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A: The provided information is:

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A: Explanation: 1. Since, The inspector is interested in determining if there is an equal proportion of…

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A:

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A: n=100 p=0.72 The objective is to solve the given questions based on a study conducted by a…

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A: Find z-critical value:…

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A: The test statistic is 1.59 and the P-value is 0.060.

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A: a.In an observational study, researchers observe the effect without trying to make changes and no…

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A:

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A:

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A:

Q: A credit score is used by credit agencies​ (such as mortgage companies and​ banks) to assess the…

A: Denote μ as the true mean credit score.

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A: Let p be the population proportion  p=5.9%=0.059  Let X be the number of people who suffer from…

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A: From the provided information, Sample size (n) = 42 Sample mean (x̅) = 719.2 Standard deviation (s)…

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A:

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A: The following solution is provided below

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A: Quantitative variables can be counted or measured, i.e, in this case the results are in terms of…

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A: Given data : sample size, n = 44 sample mean, x̄ = 722.4 sample standard…

Q: According to a study conducted by a statistical organization, the proportion of people who are…

A: From the given information,      P = 0.88       n = 100 We know that, Quantitative variables can be…

Q: Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep.…

A: We have to find test statastics.

Q: hoyed by people who repeatedly check their mobile phones while having an in-person conversation?"…

A:

Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…

A: Given information Population mean µ = 707.6 Sample size (n) = 43 Mean x̅ = 718.3 Standard deviation…

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A: Givenx=19n=308p^=19308=0.0617α=0.05

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

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A: One sample t test: One sample t test is the hypothesis test that is used to test whether the mean of…

Q: . Find a 90% confidence interval for p. (Round your answers to three decimal places.) lower limit…

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A: Let us consider a population follows a normal distribution Let a sample be taken from that…

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A: There is always some contention about the values of a parameters. When parametric values are unknown…

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A: In this case, it is needed to check whether the data provide enough evidence to show that Missouri…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.