The following data shows the daily sales of food vendors occupying the streets of Divisoria.5060670080509750...5800702084001002063007200845010500633073608460110506400740090001120065008050930011800Estimate the average daily sales of the food vendors in the area using a 99% confidence interval.A7434

Answered: Image /qna-images/answer/5b803597-fdf1-4164-9ae7-78a9701b73c3.jpg

Answered: The following data shows the daily…

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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Workers at a certain soda drink factory collected data on the volumes (in ounces) of a simple random sample of 25 cans of the soda drink. Those volumes have a mean of 12.19 oz and a standard deviation of 0.12 oz, and they appear to be from a normally distributed population. If the workers want the filling process to work so that almost all cans have volumes between 12.04 oz and 12.60 oz, the range rule of thumb can be used to estimate that the standard deviation should be less than 0.14 oz. Use the sample data to test the claim that the population of volumes has a standard deviation less than 0.14 oz. Use a 0.01 significance level. Complete parts (a) through (d) below. b. Compute the test statistic. (Round to three decimal places as needed.) c. Find the P-value. Click to select your answer(s). OV 8:46 hp ese backspace 96 6 1 3 4 y e tab enter k d a shift alt ctri ctrl alt USE YOUR SMARTPHONEFOR Reviews Videes Features Specs Support HP Chromebook For work and play. nd play. And play. HD…
The brain volumes (cm3) of 20 brains have a mean of 1138.1 cm3 and a standard deviation of 120.4 cm3. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are signigicantly low or significantly high. For such data, would a brain volume of 1388.9 cm3 be significantly high?
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2600 grams and a standard deviation of 600 grams while babies born after a gestation period of 40 weeks have a mean weight of 2800 grams and a standard deviation of 390 grams. If a 32-week gestation period baby weighs 2150 grams and a 40-week gestation period baby weighs 2350 grams, find the corresponding z-scores. Which baby weighs less relative to the gestation period?
O C. The baby born in week 41 weighs relatively less since its z-score, is larger than the z-score of for the baby born in week 32. O D. The baby born in week 32 weighs relatively less since its z-score, is smaller than the z-score of for the baby born in week 41.
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2600 grams and a standard deviation of 600 grams while babies born after a gestation period of 40 weeks have a mean weight of 2900 grams and a standard deviation of 440 grams. If a 35-week gestation period baby weighs 2775 grams and a 40-week gestation period baby weighs 3075 grams, find the corresponding z-scores. Which baby weighs more relative to the gestation period? Find the corresponding z-scores. Which baby weighs relatively more? Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) A. The baby born in week 40 weighs relatively more since its z-score, is smaller than the z-score of for the baby born in week 35. B. The baby born in week 40 weighs relatively more since its z-score, is larger than the z-score of for the baby born in week 35. O C. The baby born in week 35 weighs relatively more since its z-score, is larger…
According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015 for Hispanic females was 84.3 years. Assume that the standard deviation was 15 years, as suggested by the Bureau of Economic Research. The distribution of age at death,X, is not normal because it is skewed to the left. Nevertheless, the distribution of the mean x¯, in all possible samples of size ? is approximately normal if ? is large enough, by the central limit theorem. Let x¯ be the mean life expectancy in a sample of 100 Hispanic females. Determine the interval centered at the population mean ? such that 95% of sample means x¯ will fall in the interval. Give your answers precise to one decimal.
Suppose that the quarterly sales levels among health care information systems companies are approximately normally distributed with a mean of 8vmillion dollars and a standard deviation of 1.1million dollars. One health care information systems company considers a quarter a "failure" if its sales level that quarter is in the bottom 15%of all quarterly sales levels. Determine the sales level (in millions of dollars) that is the cutoff between quarters that are considered "failures" by that company and quarters that are not. Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.
Assume that military aircraft use ejection seats designed for men weighing between 137.1 lb and 202 lb. If women's weights are normally distributed with a mean of 163.2 lb and a standard deviation of 42.8 lb, what percentage of women have weights that are within those limits? Are many women excluded with those specifications? The percentage of women that have weights between those limits is nothing%. (Round to two decimal places as needed.) Are many women excluded with those specifications? A. yes, the percentage of women who are excluded, which is the complement of the probability found previously shows that about half of women are excluded B. YES, the percentage of women who are excluded, which is equal to the probability found previously shows that about half of women are exluded c. no, the percentage of women who are excluded which is the complement of the probability found previosly shows that very few women are excluded D. no, the percentage of women…
An Internet provider has analyzed the amount of time it’s customers are online per session. It found that the distribution of connect times has a mean a 43 minutes and a standard deviation of 10 minutes. For this distribution find the raw score that corresponds to a z score of 1.1
Suppose that Melanie is a researcher who wishes to estimate the mean birthweight of full-term babies in her hospital. What is the minimum number of babies should she sample if she wishes to be at least 90% confident that the mean birthweight of the sample is within 225 grams of the the mean birthweight of all babies? Assume that the distribution of birthweights at her hospital is normal with a standard deviation of 600 g.
During the busy season, it is important for the shipping manager at ShipMundo to be able to estimate the time it takes the loading crew to load a truck. The shipping manager has found that she can model the load times using a normal distribution with a mean of 152 minutes and a standard deviation of 15 minutes. Use this table or the ALEKS calculator to find the percentage of load times between 116 minutes and 149 minutes according to the model. For your intermediate computations, use four or more decimal places. Give your final answer to two decimal places (for example 98.23%).
A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 50 years old, with a standard deviation of 10 years. Suppose that these measures are valid for the population of all home buyers. Complete the following statements about the distribution of all ages of home buyers. (a) According to Chebyshev's theorem, at least (Choose one) ▼ of the home buyers' ages lie between 30 years and 70 years. (b) According to Chebyshev's theorem, at least 84% of the home buyers' ages lie between years and years. (Round your answer to the nearest whole number.) X

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