Kristy randomly samples the out-of-state tuition and fees for 25 public universities and found a mean...
Kristy randomly samples the out-of-state tuition and fees for 25
public universities and found a mean of $20,876 with a standard
deviation of $2,494. Using the alternative hypothesis that µ <
$21,706, Kristy found a z test statistic of -1.66.
Given the data provided, what is the p-value of the z-test
statistic? Answer choices are rounded to the thousandths
place.
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Kristy randomly samples the out-of-state tuition and fees for 25
public universities and found a mean...
Spencer randomly samples the out-of-state tuition and fees for 25 public universities and found a mean...
Spencer randomly samples the out-of-state tuition and fees for 25 public universities and found a mean of $21,032 with a standard deviation of $2,494. Using the alternative hypothesis that u < $21,706, Spencer found a z test statistic of -1.35. Given the data provided, what is the p-value of the z-test statistic? Answer choices are rounded to the thousandths place. a.) 0.089 b.) 0.911 c.) 0.171 d.) 0.829
Rachel measures the lengths of a random sample of 100 screws. The mean length was 2.6...
Rachel measures the lengths of a random sample of 100 screws. The mean length was 2.6 inches, with a standard deviation of 1.0 inches. Using the alternative hypothesis (µ < µ0), Rachel found that a z-test statistic was equal to -1.25. What is the p-value of the test statistic? Answer choices are rounded to the thousandths place.
Spencer concluded her z-score calculation, and figured out that the p-value was 0.042, which indicated that...
Spencer concluded her z-score calculation, and figured out that the p-value was 0.042, which indicated that they should reject the null hypothesis. “I have another question, Spencer, or rather another idea,” said Tasha. “Suppose we look at attending a public university in a neighboring state. We may end up paying more in tuition and fees than we would if we were in-state students, but maybe it will be less expensive than a private university.” Spencer said, “Tasha, that’s not only...
Keith sampled 10 private universities in Colorado and recorded the tuition cost. Keith wants to test...
Keith sampled 10 private universities in Colorado and recorded the tuition cost. Keith wants to test the hypothesis that the tuition of these 10 universities is more expensive than the national average tuition, which is $29,056 with a population standard deviation of $3,339. If the sample mean is $31,650, what is the z-score? Answers are rounded to the hundredths place. O a.) -2.94 b.) 0.13 c.) -0.78 d.) 2.46
The mean annual tuition and fees for a sample of 14 private colleges in Califormia was...
The mean annual tuition and fees for a sample of 14 private colleges in Califormia was $37,900 with a standard deviation of $7,200. A dotplot shows that it is reasonable to assume that the population is approximately normal. Can you conclude that the mean tuition and fees for private institutions in Califomia differs from $35,000? Use a 0.01 level of significance. a. Which function would you use in your calculator to perform the hypothesis test? b. Determine the null hypothesis....
The mean annual tuition and fees for a sample of 14 private colleges in Califormia was...
The mean annual tuition and fees for a sample of 14 private colleges in Califormia was $37,900 with a standard deviation of $7,200. A dotplot shows that it is reasonable to assume that the population is approximately normal Can you conclude that the mean tuition and fees for private institutions in California differs from $35,000? Use a 0.01 level of significance. a. Which function would you use in your calculator to perform the hypothesis test? H0 b. Determine the null...
The mean annual tuition and fees in a particular academic year for a sample of 23...
The mean annual tuition and fees in a particular academic year for a sample of 23 private colleges in Oklahoma was $37,553 with a standard deviation of $7,341. Assuming that the population is approximately normal, can we conclude with a significance level of α = 0.05 that the mean tuition and fees for private institutions in Oklahoma is $36,000? a.) State the null and alternative hypothesis using correct symbolic form. (Do not use commas in your answers) H0: Answerρμσ Answer=≠<>...
The mean annual tuition and fees in the 2013-2014 academic year for a sample of 24...
The mean annual tuition and fees in the 2013-2014 academic year for a sample of 24 private colleges in California was $37,000 with a standard deviation of $7800. A dot plot shows that it is reasonable to assume that the population is approximately normal. Can you conclude that the mean tuition and fees for private institutions in California is greater than $35,000? Use the α=0.10 level of significance and P-value method with the Critical Values for the Student's t Distribution...
The mean annual tuition and fees for a sample of 12 private colleges was $36,800 with...
The mean annual tuition and fees for a sample of 12 private colleges was $36,800 with a standard deviation of $5000 A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from $33,700. Compute the value of the test statistic and state the number of degrees of freedom. 2.148; 12 degrees of freedom 0.620; 11 degrees of freedom 0.620; 12...
INTRODUCTION: Colleges often report a combined tuition and fees figure. According to the College Board, the...
INTRODUCTION: Colleges often report a combined tuition and fees figure. According to the College Board, the average cost of tuition for the 2017–2018 school year was $34,740 at private colleges, $9,970 for state residents at public colleges, and$25,620 for out-of-state residents attending public universities. Assumeaverage yearly tuition cost of instate residents of 4-yr. public college is (mu) “μ”>/= is $12070per year. (Null Hypothesis)) Research online (by going to at least 15 college websites) to find costs of different public colleges...
Spencer randomly samples the out-of-state tuition and fees for 25 public universities and found a mean of $21,032 with a standard deviation of $2,494. Using the alternative hypothesis that u < $21,706, Spencer found a z test statistic of -1.35. Given the data provided, what is the p-value of the z-test statistic? Answer choices are rounded to the thousandths place. a.) 0.089 b.) 0.911 c.) 0.171 d.) 0.829
Keith sampled 10 private universities in Colorado and recorded the tuition cost. Keith wants to test the hypothesis that the tuition of these 10 universities is more expensive than the national average tuition, which is $29,056 with a population standard deviation of $3,339. If the sample mean is $31,650, what is the z-score? Answers are rounded to the hundredths place. O a.) -2.94 b.) 0.13 c.) -0.78 d.) 2.46
The mean annual tuition and fees for a sample of 14 private colleges in Califormia was $37,900 with a standard deviation of $7,200. A dotplot shows that it is reasonable to assume that the population is approximately normal. Can you conclude that the mean tuition and fees for private institutions in Califomia differs from $35,000? Use a 0.01 level of significance. a. Which function would you use in your calculator to perform the hypothesis test? b. Determine the null hypothesis....
The mean annual tuition and fees for a sample of 14 private colleges in Califormia was $37,900 with a standard deviation of $7,200. A dotplot shows that it is reasonable to assume that the population is approximately normal Can you conclude that the mean tuition and fees for private institutions in California differs from $35,000? Use a 0.01 level of significance. a. Which function would you use in your calculator to perform the hypothesis test? H0 b. Determine the null...
The mean annual tuition and fees for a sample of 12 private colleges was $36,800 with a standard deviation of $5000 A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from $33,700. Compute the value of the test statistic and state the number of degrees of freedom. 2.148; 12 degrees of freedom 0.620; 11 degrees of freedom 0.620; 12...
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