The scores on an examination in biology are approximately normally distributed with mean 500 and an unknown standard deviation. The following is a randomsample of scores from this examination.410, 412, 455, 488, 518, 559, 577Send data to calculatorFind a 90% confidence interval for the population standard deviation. Then give its lower limit and upper limit.Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places. (If necessary, consult a list offormulas.)Lower limit:Upper limit:ContinueSC06&Submit AssignmeAccessibileⒸ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center*

Given data: x 410 412 455 488 518 559 577 Confidence level :1-α=0.90

Answered: The scores on an examination in biology…

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 see the picture below. None of the answers I've tried is coming back right. I just need help with the items in the red boxes.
The Chocolataboom Candy Company manufactures many types of different candies. Their most popular Valentine's Day box of candy follows a Normal Distribution with a mean of 483 grams and a standard deviation of 21.4 grams. You decide to buy a box of candy and weight it. Your box of candy weighs 509. Calculate the z-score for your box of candy. Round to 2 decimal points. (e.g. 12.34)
I'd like the first question answer, the one that fills in the boxes. I can do the rest
A brand of corn flakes come in a box that says it holds 28 ounces of cereal. The manufacturer says that the weights of corn flakes have a normal distribution with a standard deviation of 0.13 ounces. Use the Cumulative Z-Score Table to answer the following questions. The Z-Score Table can be found below by selecting "Read". Round all answers to the nearest box. If the manufacturer ships 730,000 boxes thèn... boxes ...how many boxes weigh less than 27.9025 ounces? boxes ...how many boxes weigh more than 27.9025 ounces? boxes ...how many boxes weigh less than 27.636 ounces? boxes ..how many boxes weight more than 27.636 ounces? boxes ...how many boxes weigh between 27.636 and 27.9025 ounces? Z-Score Table. Question Help: Video Submit Question 9:40 AM
The lengths of nails produced in a factory are normally distributed with a mean of 5.165.16 centimeters and a standard deviation of 0.040.04 centimeters. Find the two lengths that separate the top 8%8% and the bottom 8%8%. These lengths could serve as limits used to identify which nails should be rejected. Round your answer to the nearest hundredth, if necessary.
A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 36,000 miles and a standard deviation of 2100 miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires? Click to view page 1 of the table. Click to view page 2 of the table. CHE Tires that wear out by miles will be replaced free of charge. (Round to the nearest mile as needed.)
Consider the following sample: 1, 4, 7, 2, 6. How does the standard deviation change when the 7 is replaced with a 12? Answer intuitively first, and then check your answers numerically.
Refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Find the mean and standard deviation for the number of girls in 8 births. Click the icon to view the data table. The mean is u= girl(s). (Round to one decimal place as needed.) The standard deviation is o = e# girl(s). (Round to one decimal place as needed.) Table of numbers of girls and probabilities Number of Girls x 0 1 2 3 4 5 6 7 8 átv P(x) 0.004 0.034 0.117 0.218 0.278 0.217 0.102 0.027 0.003 D - X NiZ Next
Consider the given data set. n = 12 measurements: 9, 8, 1, 5, 5, 7, 5, 6, 8, 7, 2, 0 Find the mean. USE SALT Find the standard deviation. (Round your answer to four decimal places.) z = Find the z-score corresponding to the minimum in the data set. (Round your answer to two decimal places.) Find the z-score corresponding to the maximum in the data set. (Round your answer to two decimal places.) z = Do the z-scores indicate that there are possible outliers in the data set? Since the z-score for the larger observation is larger than 2 in absolute value, the larger value is unusually large. Since both z-scores exceed 2 in absolute value, both of the observations are unusual. Since neither z-score exceeds 2 in absolute value, none of the observations are unusually small or large. Since the z-score for the smaller observation is larger than 2 in absolute value, the smaller value is unusually small.
In the 1992 presidential election, Alaska's 40 election districts averaged 2002 votes per district for President Clinton. The standard deviation was 566. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. Find the third quartile for votes for President Clinton. Round your answer to the nearest whole number.
Please answer B, C, & D.
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