Good credit: The Fair Isaac Corporation (FICO) credit score is used by banks and other lenders to determine whether someone is a good credit risk. Scoresrange from 300 to 850, with a score of 720 or more indicating that a person is a very good credit risk. An economist wants to determine whether the mean FICOscore is lower than the cutoff of 720. she finds that a random sample of 40 people had a mean FICO score of 680 with a standard deviation of 90, Can theeconomist conclude that the mean FICO score is less than 720? Use the a=0.01 level of significance and the P-value method with the TI-84 Plus calculator.Part: 0 / 4Part 1 of 4State the appropriate null and alternate hypotheses.D-0H:This hypothesis test is a (Choose one) ▼test.Part 2 of 4Compute the P-value. Round the answer to at least four decimal places.P-value =Part: 2/ 4Part 3 of 4Determine whether to reject H(Choose one) ▼the null hypothesis H.Part 4 of 4State a conclusion.There (Choose one) v enough evidence to conclude that the mean FICO score is lower than the cutoff of 720.

*Answer: Given that Hypothesized Population Mean (\mu)(μ) = 720720 Sample Standard Deviation…

Answered: ate null and alternate hypotheses. O0…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I need help with stats/2023 A baseball team claims that the mean length of its games is more than 2.6 hours. STate H0 and Ha in words and symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed or 2-tailed test. Explain your reasoning. State the null hypothesis in words and symbols. Choose the correct answer A. The null hypothesis is expressed in words is, "the mean length of a baseball's team's games is at most 2.6 hours." The null hypothesis is expressed symbolically as, H0: mu < or = to 2.6" B. The null hypothesis is expressed in words is, "the mean length of a baseball team's games is not 2.6 hours." The null hypothesis is expressed symbolically as, "H0: mu does not = 2.6" C. The null hypothesis is expressed in words is "the mean length of a baseball team's games is 2.6 hours." THe null hypothesis is expressed symbolically as, "H0: mu = 2.6" C. The null hypothesis is expressed in words is "the mean length of a baseball's team's games…
Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1234 adults, 83% said that they have a cell phone. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
To study the effect of temperature on yield in a chemical process, five batches were produced at each of three temperature levels. The results follow. Source of Variation 50°C 60°C 70°C Treatments Error Total N 35 Temperature 25 37 38 30 70 29 206 30 276 33 23 Construct an analysis of variance table. (Round your values for MSE and F to two decimal places, and your p-value to four decimal places.) 30 24 27 28 29 Sum of Squares 32 Degrees of Freedom Ho: M50°C = μ60°C = μ70°C Ha: 50°C 60°C # μ70°C 2 12 O Ho: M50°C 60°C # μ70°C Ha: 50°C = 60°C = μ70°C 14 O Ho: Not all the population means are equal. Ha: 50°C = 60°C = μ70°C Ho: M50°C = μ60°C = μ70°C Ha: Not all the population means are equal. 35 Mean Square 17.16667 F Use a 0.05 level of significance to test whether the temperature level has an effect on the mean yield of the process. State the null and alternative hypotheses. O Ho: At least two of the population means are equal. Ha: At least two of the population means are different.…
Hypothesis Testing Using a P-Value identify the claim and state Ho and Ha. find the standardized test statistic z. find the corresponding P-value. decide whether to reject or fail to reject the null hypothesis. interpret the decision in the context of the original claim.
The filling the sentence says "Reject or Fail to Reject" and "Sufficient or Not Sufficient" Please provide the answer for all the parts. Thanks in advance.
answer multiple choice
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STAT&PROB11-Finals The Language of Hypothesis Testing Suppose we wish to test H, : µ47. What will be the result if we conclude that the mean is greater than 47 when its true value is really 52? O We have made a Type I error. O We have made a Type II error. O We have made a correct decision. O None of the above is correct. 30 31 32 33 34 35 36 37 38 Nex 29
HELP WITH QUESTIONS THAT GO ALONG WITH THE PICTURE.. Determine the test statistic. ______ (Round to two decimal places as needed.) Determine the P-value. _______(Round to three decimal places as needed.) State the final conclusion that addresses the original claim. REJECT OR FAIL TO REJECT H0. There is SUFFICIENT OR NOT SUFFICIENT evidence to conclude that the mean of the population of changes is GREATER THEN, NOT, EQUAL TO OR LESS THAN 0.
Testing to see if there is evidence that a mean is less than 50.

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ate null and alternate hypotheses. O0 D-0 test is a (Choose one) test. Round the answer to at least four decimal places. to reject Hg. the null hypothesis H. enough evidence to conclude that the mean FICO score is lower than the cutoff of 720.