You have taken a random sample of size n=85 from a normal population that has a population mean of μ = 120 and a population standard deviation of a = 19.Your sample, which is Sample 1 in the table below, has a mean of x = 121.8. (In the table, Sample 1 is written "S1", Sample 2 is written "S2", etc.)(a) Based on Sample 1, graph the 75% and 95% confidence intervals for the population mean. Use 1.150 for the critical value for the 75% confidenceinterval, and use 1.960 for the critical value for the 95% confidence interval. (If necessary, consult a list of formulas.)S4S5S6S7S1 121.8S2S3S8S9$10S11S12S13S14$15S16S17S18• Enter the lower and upper limits on the graphs to show each confidence interval. Write your answers with one decimal place.• For the points (and), enter the population mean, μ = 120.S19111.0S20111.0x75% confidence interval120.5XGenerate Samples130.0130.0Ś(b) Press the "Generate Samples" button below to simulate taking 19 more samples of size n=85 from the population. Notice that the confidenceintervals for these samples are drawn automatically. Then complete parts (c) and (d) below the table.75% 75% 95% 95%lower upper lower upperlimit limit limit limit????111.0H+H|+++111.0111.075% confidence intervals95% confidence interval+||||||||120.5H+++130.0 111.0XH+H.130.095% confidence intervals5130.0|||||||||||130.0 19(c) Notice that for =95% of the samples, the 95% confidence interval contains the population mean. Choose the20correct statement.When constructing 95% confidence intervals for 20 samples of the same size from the population, at most 95% ofthe samples will contain the population mean.When constructing 95% confidence intervals for 20 samples of the same size from the population, it is possible thatmore or fewer than 95% of the samples will contain the population mean.When constructing 95% confidence intervals for 20 samples of the same size from the population, exactly 95% ofthe samples will contain the population mean.(d) Choose ALL that are true.If there were a Sample 21 of size n=170 taken from the same population as Sample 10, then the 95% confidenceinterval for Sample 21 would be narrower than the 95% confidence interval for Sample 10.The 75% confidence interval for Sample 10 is narrower than the 95% confidence interval for Sample 10. This iscoincidence; when constructing a confidence interval for a sample, there is no relationship between the level ofconfidence and the width of the interval.The 95% confidence interval for Sample 10 does not indicate that 95% of the Sample 10 data values are between115.3 and 123.3.From the 75% confidence interval for Sample 10, we know that there is a 75% probability that the populationmean is between 116.9 and 121.7.None of the choices above are true.

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Answered: You have taken a random sample of size…

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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10 of 11 DNA markers of known lengths were separated on an agarose gel and visualised. The figure below is the standard plot of measurements made from a digital image of this gel. A line of best fit has been determined (illustrated with a dotted line) and the equation used to describe this trendline is shown. 3.5 3. 2.5 y = -0.003x+ 3.7876 R = 0.9964 1.5 0.5 of size marker in base pair s 2.
Question 10
MAKE A GRAPH FROM THE GIVEN DATAplease do this typewritten and completely so I will upvote. Thank you and much appreciated for the help.
#25). Both photos are the same problem.
The table below lists measured amounts of redshift and the distances (billions of light-years) to randomly selected astronomical objects. There is sufficient evidence to support a claim of a linear correlation, so it is reasonable to use the regression equation when making predictions. For the prediction interval, use a 90% confidence level with a redshift of 0.0126. Find the explained variation. Redshift Distance OA, 0.157904 OB. 0.444904 OC. 0.000582 OD. 0.219582 0.0231 0.34 0.0536 0.76 0.0715 0.99 0.0391 0.56 0.0438 0.63 0.0109 0.15
If N = 150, (A) = 93, (B) = 112, (C) = 80, (BC) = 20 and (Ay) = 43, find the greatest and the least possible values of (AB) so that the data may be consistent.
QUESTION 8 You are interested in seeing whether emotions impact decision making. You have three groups--a happy group, a sad group, and a neutral group. For the happy group there are 5 participants and the mean risky decision making score 5.0 with a standard deviation of 0.7. For the sad group there are 5 participants and the mean risky decision making score 5.4 with a standard deviation of 1.1. For the neutral group there are 5 participants and the mean risky decision making score 5.8 with a standard deviation of 2.8. The sum of squares between samples is equal to 1.6. The sum of squares within samples is equal to 38.0. What is the degrees of freedom total? Please do the calculations on the handout provided.
Question 2 At the end of 2020, the mean age of the U.S. population was estimated to be 38.5 years old. You are tasked with determining whether the mean age of the population of IAT participants (for your chosen IAT data set) differs from the mean age of the U.S. population. 1. Let be the mean age of the population of IAT participants for your chosen IAT data set. State the hypotheses (symbolically and in words). Include a clear description of the populations and the variable. 2. 3. 4. Use StatCrunch to create a histogram for the age distribution in your unique IAT sample. Download the StatCrunch output window and embed your histogram with your response. Can we safely use the t-test with your IAT sample? Explain. Perform the t-test using StatCrunch. Copy the information from the StatCrunch output window and paste it into your response. Based on the P-value, state your conclusions in context. Use a 5% level of significance. (NOTE: Since StatCrunch correctly calculates the P-value for…
Question 2 In 2015, the average duration of long-distance telephone calls from a certain town was 3.9 minutes. A telephone company wants to perform a test to determine whether this average duration of long- distance calls has changed. Fifty calls, originating from the town, was randomly selected and the following summary minutes. Σx= 205 E(x – F)2 = 56.43 c) Using the p value approach at the 1% level of significance, test whether the mean duration of long-distance calls from the town had increased. d) Construct the 99% confidence interval for the population mean duration of the long-distance calls from the town.
QUESTION 6 The Corner Drug Store fills prescriptions for a popular children's antibiotic, amoxicillin. The daily demand for amoxicillin is normally distributed, with a mean of 200 kilograms and a standard deviation of 80 kilograms. The vendor for the pharmaceutical firm that supplies the drug calls the drugstore pharmacist every 30 days to check the inventory of amoxicillin. During a call, the druggist indicated that the store had 60 kilograms of the antibiotic in stock. The lead time to receive an order is 4 days. a) Determine the order size that will enable the drugstore to maintain a 95% service level.
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