Refer to the accompanying data display that results from a simplerandom sample of times (minutes) between eruptions of the OldFaithful geyser. The confidence level of 95% was used. Completeparts (a) and (b) below.crunch2Get more help.a. Express the confidence interval in the format that uses the "less than" symbol. Round the confidence interval limits given that the original times are all rounded to one decimal placemin<μ< min(Round to two decimal places as needed)WSX#m3edC$4Cf%5Vt9ATInterval(85.74,91.76)x=88.75Sx=8.897431411Oll<6n=36DELLyb&7hOJn* 008jOiO3k✓OClear allOLNov 29PaltCheck answer>3:51 US O+ 11ctrl?Gback1

AnswerGiven,[85.74, 91.76]x = 88.75sx = 8.897431411n = 36

Answered: Refer to the accompanying data display…

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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Please answer the question in the picture below to answer the question in the other picture
Assume that adults have IQ scores that are normally distributed with a mean of 100.2 and a standard deviation 20.9. Find the first quartile Q₁, which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.) The first quartile is (Type an integer or decimal rounded to one decimal place as needed.)
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Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96
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A clinic measured the systolic blood pressure for a random sample of 10 patients. The resulting 95% confidence interval for the mean systolic blood pressure of all the patients at this clinic was (111.3, 129.5). What was the mean systolic blood pressure from the sample of 10 patients? 18.2 111.3 120.4 129.5

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