Part 2 of 4Compute the P-value of the test statistic. Round the answer to at least four decimal places.P-valuePart: 2/ 4Part 3 of 4Determine whether to reject H.(Choose one)the null hypothesis H,.RejectDo Not Reject Are you smarter than a second-grader? A random sample of 51 second-graders in a certain school district are given a standardized mathematics skils test. Thesample mean score is x44. Assume the standard deviation of test scores is o 15. The nationwide average score on this test is 50. The schoolsuperintendent wants to know whether the second-graders in her school district have different math skills from the nationwide average. Use thea-0.01 levelof significance and the P-value method with the TI-84 calculator.Part: 0/4Part 1 of 4State the appropriate null and alternate hypotheses.IIThis hypothesis test is a (Choose one) V test.left-tailedright-talledtwo-tailed

Given: n=51x¯=44σ=15μ=50α=0.01

Answered: Are you smarter than a second-grader? A…

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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Find the mean, median, mode, range, standard deviation, quartiles, and interquartile range.
An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as follows:1 5 5 6 7 7 8 8 8 9 10 10 What is the deviation of the score 10 from the mean in 13a (recall that this involves a subtraction of the mean from the particular score)? I think I got answer but want to check.
Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?
What if a professor returned an assignment to you and your assignment had a standard deviation score of 10 and the professor told you that the class mean was 80. What would be your assignment score if your percentile is 90.5
Use the range rule of thumb to identify the values that are significantly low, the values that are signficantly high, and the values that are neither significantly low nor significantly high. A test is used to assess readiness for college. In a recent year, the mean test score was 19.8 and the standard deviation was 5.4, Identify the test scores that are significantly low or significantly high. What test scores are significantly low? Select the correct answer below and fill in the answer box(es) to complete your choice. O A. Test scores that are between (Round to one decimal place as needed. Use ascending order.) and Get more help - Next all 9:26 PM 47°F Clear 3/27/2022 近

A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
In Statsville there’s a city-wide speed limit of 30 mph.If you are caught speeding the fine is $100 plus $10 forevery mile per hour you were over the speed limit. Forexample, if you’re ticketed for going 45 mph, your fine is100 + 10145 - 302 = +250. Last month all the driverswho were fined for speeding averaged 42 mph with astandard deviation of 7 mph. What were the mean andstandard deviation of the fines?A) $120 and $70 B) $220 and $7C) $220 and $70 D) $220 and $170E) $420 and $70
Find the value of the standardized test statistic.
A postmix beverage machine is adjusted to release a certain amount of syrup into a chamber where it is mixed with carbonated water. A random sample of 25 beverages was found to have a mean syrup content of x = 1.0 fluid ounces and a standard deviation of s = 0.020 fluid ounces. Assume population is approximately normally distributed. Compute a 95% prediction interval on the syrup volume in the next beverage dispensed. Compare the length of the prediction interval with the length of the 95% confidence interval on the population mean. Round your answers to 3 decimal places. i The 95% prediction interval is < Xn+1 ≤ i the 95% confidence interval.
NEED HELP WITH: A,B,C please thanks
please solve : B, C, and D ch 9

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