5. The following data represent the repair cost for a low-impact collision in asimple random sample of mini-and micro-vehicles (such as the ChevroletAveo or Mini Cooper). Assume the population is normally distributed.Construct and interpret a 98% confidence interval for population mean costloof repair.liss$3148$2057$1758$663$1071$2637$3345$773$743$1370fallissellubo9v9 enorg

Let X be a repair cost for a low-impact collision.X is normally distributed..Want to construct a 98%…

Answered: 5. The following data represent the…

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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1. The data below represent the repair cost for a low-impact collision in a simple rnadom sample of mini- and -micro vehicles $3148 $1758 $1071 $3345 $743 $2057 $663 $2637 $773 $1370 1a. Determine the point estimate of the population mean. Use the appropriate notation. 1b. Determine the margin of error for the 90% confidence interval. Use appropriate notation. 1c. Specify the 90% confidence intervalUse appropriate interval notation. 1d. Give a brief intperetation of the confidence intervalas related to repair costs. 2. Use the data from the problem #1. Assume a probability normal probability plot suggest the data could come from a population that is normally ditrubuted. A bocplot does not show outliers. Does the sample evidence suggest the cost of repairs to exceed $1200? 2a. what type of test should we use? ____ sample ___ - test for the _____ 2b. Write the hypothesis and specify the type of testing (failing). Use appropriate notation for the hypothesis. Hypothesis: Tailing:…
Custom-Home Resales. Use the technology of your choice to obtain the requested point estimate and confidence interval for the mean selling price, and the predicted value and prediction interval for the selling price of a home in the Equestrian Estates that has 3200 sq ft, 4 bedrooms, 3 bathrooms, and that remains on the market for 60 days.
Below are the ozone concentrations in areas of Singapore, Japan, Philippines, and Taiwan. Obtain a 95% confidence interval for its variance. What assumptions have you made in using the formula for the confidence interval?
A recent survey of 50 MBA graduates for the starting monthly salary in PKR after completing their degrees is given in the following table. 35 28 36 33 25 49 48 38 40 38 44 29 25 26 40 45 35 38 22 46 50 39 25 28 23 35 57 48 35 32 55 46 28 22 43 28 33 38 40 49 28 59 53 40 33 25 28 33 40 38 a. Construct 90%, 95% and 99% confidence intervals for the population mean and interpret your answers. b. Detemine the sample sizes needed if for the above mentioned confidence intervals the margin of error for the estimated mean lies within Rs. 1500 of the actual. c. Construct 80%, 90% and 99% confidence interval for the proportion of graduates who have starting salary of less than PKR 30,000.
I only need part D answered. Thank you.
do fast ..with explanation both require..
1. The data in the file represent egg and cheese symbolizes the total fat, in grams per serving, for a sample of 20 egg and cheese sandwiches from a fast food restaurant. The data are as follows: 7 8 3 5 15 21 22 24 18 33 23 31 25 19 29 29 29 30 41 55 1. Find the mean, mode and the median. 2. Construct 95% confidence interval for the population mean total fat, in grams preserving.
1. Listed below is the moisture content (by percent) for random samples of different fruits and vegetables. Fruits 92 81 78 94 93 85 98 90 Vegetables 91 97 94 95 101 102 98 101 100 a. Compute descriptive statistics that will help you do exploratory analysis on moisture content (fruits and vegetables) and comment on your results. b. Construct a 95% confidence interval for the difference in the average of moisture content (fruits and vegetables) assuming the variances are significantly different. c. Is there sufficient evidence to suggest that the moisture content in Fruit is different from the moisture content in vegetables? Assuming the variance are not significantly different. Use a=0.05. Use P-value in making vour decision.
a. interpret the corresponding 95% confidence intervals for both Birth weight and Age. b. What is the predicted average SBP of an infant born with birth weight 8lbs (128oz) measured at 3 days old? c. Calculate the Pearson correlation between Age and Birth weight, and test if this correlation is significant at the 0.05 level. Does this answer surprise you, why or why not?
Import the data from the Hill City Excel file into Minitab.You are trying to predict Price.Note: Mtn View=1 if there is a mountain view, 0 otherwise. The rest of the variables should be self explanatory. 1.Perform an F Test for overall significance of the model 2.Perform a T test for slope for the age variable 3. Find a 95% confidence interval for the slope of the SqFeet variable4. Create a prediction, CI, and PI for 1 new set of x values (any valid numbers you want), and interpret each.5. Run the residual plots and indicate if they show any problems with the model.
The following data represents the number of insects counted in two different locations (A and B). Construct a 80% confidence interval for o²/02B. (round to the nearest tenth): DATA: Observation 1 2 3 4 5 6 7 8 9 LOCATION A 45 45 32 46 45 44 43 49 48 LOCATION B 49 41 49 42 48 42 49 47 1. In the answer box enter the upper confidence interval. 2. Evaluate the confidence interval and indicate if the variances are (yes) or are not (no) homogeneous (yes/no; place your answer right beside the upper confidence interval. Do not leave a space between the two answers).
Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"

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