Suppose the average reading speed of 15 randomly selected elementary school students is 25, and the average reading speed of 15 randomly selected middle school students is 31. You compute an independent-samples t-test, and your t-obtained is 5.72, which is statistically significant. What is the most appropriate conclusion? Think of what would be the experimental hypotheses, and in a sentence or two describe your interpretation of the results, using the actual independent and dependent variables, as you would explain it to a reporter.

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Q: Under what circumstances is the t statistic used instead of the Z score for a hypothesis test?

A: The t statistic is used when the population standard deviation or population variance is not known.…

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A: Given that n =150 ,p = 0.31

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A: Given,P-value=0.221level of significance (α)=0.10

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A: Given information Hypothesized mean µ = 40 Sample size (n) = 8 Mean M = 35 Sample variance (s2) = 73…

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A: It is asked yo test whether the proportions are different or not. So the null hypothesis will claim…

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A:

Q: In a clinical trial, 20 out of 880 patients taking a prescription drug daily complained of flulike…

A: Given,n=880x=20H0:p=0.019H1:p>0.019Test statistic(z0)=0.80

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A:

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Q: You are testing the null hypothesis that there is no linear relationship between two​ variables, X…

A: Given: From your sample of n=18,you determine that b1=4.6 and Sb1=1.9.

Q: Recently, a large academic medical center determined that 8 of 19 employees in a particular position…

A: Solution: Given data X = 8 n =19 Pi = .54 Level Of significance = 0.05

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A: We have given paired sampled data, calculation for sample mean and standard deviation is show below.…

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A:

Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Recently, a large academic medical center determined that 8 of 15 employees in a particular position…

A:

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A: Givenn=106x=48p^=xn=48106=0.4528α=0.01

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

A: From the provided information,

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A: Interpretation:The 95% confidence interval can be interpreted as follows:One can be 95% confident…

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A: The sample size is 864, population proportion is 0.019. Checking condition:

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

A: Given : p = 0.37 n = 114

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A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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A: given that, p=0.023 n=855 α=0.05

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

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A:

Q: If a researcher obtained a P-value of 0.01 for a hypothesis test that has a significance level of…

A: The P-value is 0.01.

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A: We have given that  Correlation coefficient r = 0.60 Sample size n = 10

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A: One proportion Z test is applicable

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Q: , what is the test statistic and p-value?

A:

Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…

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Q: In a hypothesis test with hypotheses Ho :p > 0.76 and H1 : p < 0.76, a random sample of size 974…

A:

Q: In testing hypotheses, which of the following would be strong evidence against the null hypothesis?…

A: Basics:

Q: In a hypothesis test with hypotheses Ho :p 2 0.76 and H1 :p < 0.76, a random sample of size 979…

A: Given data sample size, n =979

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A:

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

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Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…

A: As per Bartleby guideline expert have to answer first three subpart only dear student please upload…

Q: A random sample of 663 teens who said they did not typically eat fast food reported an average daily…

A: The conditions for conducting hypothesis test are, The samples must be drawn randomly. Each of the…