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#5 Assume that the speed of automobiles on an expressway during rush hour ls nomaly distributed...
#5
Assume that the speed of automobiles on an expressway during rush hour ls nomaly distributed with a mean of 66 mph and a standard deviation of 6 mph What percent of cars are traveling slower than 58 mph? Click the icon to view page 1 of the title of 2-cores m Click the icon to view page 2 of the table of com The percentage of cars wing wwe than (Type an integer or a decimal rounded to two...
Answer all parts complete to get 100% feedback!! There are two parts. Question Help Assume the...
Answer all parts complete to get 100% feedback!! There are two
parts.
Question Help Assume the random variable X is normally distributed with mean 50 and standard deviation 7 Compute the probally Be sure PIX> 39) draw a normal curve with the area corresponding to the probably shaded Click the icon to view a table of areas under the normal curve Which of the following normal curves corresponds to PIX39) ОА, OB OC PX> 39- (Round to four orcimal places...
all parts please Homework: HW #10 - Chapter 8 - Hypot Score: 0 of 1 pt...
all parts please
Homework: HW #10 - Chapter 8 - Hypot Score: 0 of 1 pt 8.1.22 The test statistic of Z= -2.51 is obtained when testing the claim that p <0.33. a. Using a significance level of a = 0.05, find the critical value(s). b. Should we reject Ho or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution...
please answer all 3 a The length of time (in years) until a particular radioactive particle...
please answer all 3
a The length of time (in years) until a particular radioactive particle decays is a random variablet with probability density function defined by f(t) = 8 e - 8t fort in [0, 0o). Find the mean of the distribution, the standard deviation of the distribution, and the probability that the random variable is between the mean and 1 standard deviation above the mean. b The length (in centimeters) of the leaf of a certain plant is...
1 2: 3: 4. This Question: 1 pt 6 of 6 (0 complete) The overhead reach...
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This Question: 1 pt 6 of 6 (0 complete) The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a standard deviation of 7.8 a. Find the probability that an individual distance is greater than 206.80 cm. b. Find the probability that the mean for 25 randomly selected distances is greater than 196.20 cm. c. Why can the normal distribution be used in part (b), even though the sample...
3/5 4/8/2018 Section 8.5 Sample Size Homework-hemam b 3. ne the sample size n needed to...
3/5 4/8/2018 Section 8.5 Sample Size Homework-hemam b 3. ne the sample size n needed to construct a 90% confidence interval to estimate the population mean for the following margins of error when ? 91. a) 10 b) 15 c) 20 3 Click the icon to view a table of standard normal cumulative probabilities a) n- b) n- (Round up to the nearest integer.) (Round up to the nearest integer.) (Round up to the nearest integer.) c) n- 3: Cumulative...
Answer all parts complete to get 100% feedback!! INI Question Help Sampling Distribution - X Complete...
Answer all parts complete to get 100% feedback!!
INI Question Help Sampling Distribution - X Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the accompanying graph Click the icon to view the graph (a) What is the value of;? The value of (b) What is the value of;? The value of en c) If the samples in 16. what is likely true about the shape of the population 1 1 ! ! OA....
A genetics experiment involves a population of fruit flies consisting of 3 males named Alex, Bob,...
A genetics experiment involves a population of fruit flies consisting of 3 males named Alex, Bob, and Carlos and 1 female named Dana. Assume that two fruit flies are randomly selected with replacement. a. After listing the possible samples and finding the proportion of females in each sample, use a table to describe the sampling distribution of the proportion of females. Proportion of females Probability 0.5 1 (Type integers or fractions.) Use the accompanying data set on the pulse rates...
i need help now please i dont get it. !!! Question Help o Steel rods are...
i need help now please i dont get it.
!!! Question Help o Steel rods are manufactured with a mean length of 25 centimeter (cm). Because of variability in the manufacturing process, the lengths of the rods are approximately normally distributed with a standard deviation of 0.07 cm. Complete parts (a) to (d) (a) What proportion of rods has a length less than 24.9 cm? (Round to four decimal places as needed.) (b) Any rods that are shorter than 24...
Answer all questions please!!! The mean gas mileage for a hybrid car is 56 miles per gallon. Supp...
answer all questions please!!! The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.2 miles per gallon. (a) What proportion of hybrids gets over 62 miles per gallon? (b) What proportion of hybrids gets 52 miles per gallon or less? left parenthesis c right parenthesis What(c) What proportion of hybrids gets between 58 and 62 miles per gallon? (d) What is the...
#5
Assume that the speed of automobiles on an expressway during rush hour ls nomaly distributed with a mean of 66 mph and a standard deviation of 6 mph What percent of cars are traveling slower than 58 mph? Click the icon to view page 1 of the title of 2-cores m Click the icon to view page 2 of the table of com The percentage of cars wing wwe than (Type an integer or a decimal rounded to two...
Answer all parts complete to get 100% feedback!! There are two
parts.
Question Help Assume the random variable X is normally distributed with mean 50 and standard deviation 7 Compute the probally Be sure PIX> 39) draw a normal curve with the area corresponding to the probably shaded Click the icon to view a table of areas under the normal curve Which of the following normal curves corresponds to PIX39) ОА, OB OC PX> 39- (Round to four orcimal places...
all parts please
Homework: HW #10 - Chapter 8 - Hypot Score: 0 of 1 pt 8.1.22 The test statistic of Z= -2.51 is obtained when testing the claim that p <0.33. a. Using a significance level of a = 0.05, find the critical value(s). b. Should we reject Ho or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution...
please answer all 3
a The length of time (in years) until a particular radioactive particle decays is a random variablet with probability density function defined by f(t) = 8 e - 8t fort in [0, 0o). Find the mean of the distribution, the standard deviation of the distribution, and the probability that the random variable is between the mean and 1 standard deviation above the mean. b The length (in centimeters) of the leaf of a certain plant is...
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3:
4.
This Question: 1 pt 6 of 6 (0 complete) The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a standard deviation of 7.8 a. Find the probability that an individual distance is greater than 206.80 cm. b. Find the probability that the mean for 25 randomly selected distances is greater than 196.20 cm. c. Why can the normal distribution be used in part (b), even though the sample...
3/5 4/8/2018 Section 8.5 Sample Size Homework-hemam b 3. ne the sample size n needed to construct a 90% confidence interval to estimate the population mean for the following margins of error when ? 91. a) 10 b) 15 c) 20 3 Click the icon to view a table of standard normal cumulative probabilities a) n- b) n- (Round up to the nearest integer.) (Round up to the nearest integer.) (Round up to the nearest integer.) c) n- 3: Cumulative...
Answer all parts complete to get 100% feedback!!
INI Question Help Sampling Distribution - X Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the accompanying graph Click the icon to view the graph (a) What is the value of;? The value of (b) What is the value of;? The value of en c) If the samples in 16. what is likely true about the shape of the population 1 1 ! ! OA....
A genetics experiment involves a population of fruit flies consisting of 3 males named Alex, Bob, and Carlos and 1 female named Dana. Assume that two fruit flies are randomly selected with replacement. a. After listing the possible samples and finding the proportion of females in each sample, use a table to describe the sampling distribution of the proportion of females. Proportion of females Probability 0.5 1 (Type integers or fractions.) Use the accompanying data set on the pulse rates...
i need help now please i dont get it.
!!! Question Help o Steel rods are manufactured with a mean length of 25 centimeter (cm). Because of variability in the manufacturing process, the lengths of the rods are approximately normally distributed with a standard deviation of 0.07 cm. Complete parts (a) to (d) (a) What proportion of rods has a length less than 24.9 cm? (Round to four decimal places as needed.) (b) Any rods that are shorter than 24...
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