Construct the normal curve given the mean and standard deviation of a set of data. μ = 43.2, σ = 6.9
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Construct the normal curve given the
μ = 43.2, σ = 6.9
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- A normal distribution has a mean of 103 and a standard deviation of 7. Find the z-score for a data value of 100. Round to two decimal placese heights of people in a certain population are normally distributed with a mean of 68 inches and a standard deviation of 3.8 inches. Determine the sampling distribution of the mean for samples of size 43. Exactly normal. Mean = 68 inches. Standard deviation = 0.09 inches. Approximately normal. Mean = 68 inches. Standard deviation = 0.09 inches Exactly normal. Mean = 68 inches. Standard deviation = 0.58 inches. Exactly normal. Mean = 68 inches. Standard deviation = 3.8 inches.Assume that the distribution of an employee selection test is normally distributed with a mean of 82 and a standard deviation of 6.5. For each score in the table below, convert the z-score into the original raw score. Z-score original score 1.23 -.84 2.59 -1.61
- Draw a graphIdentify the data value corresponding to the indicated percentile. The amount of sleep an adult gets per day is normally distributed with a mean of 7 hours and a standard deviation of 1.5 hours. Five percent of adults sleep more than how many hours per day?Animals of a given weight are operated on in a veterinary hospital. The dose of anesthetic A (in mg) required to render animals suitably unconscious for the operation is normally distributed with mean 120 and standard deviation 20. The lethal dose L (in mg) of the same anesthetic for these animals is also normally distributed, with mean 350 and standard deviation 50. (Help on part a and b) a. Find a dose "D" that the vet should administer, in order that 99.9% of animals will be suitably unconscious for the operation. b. If the dose "D" that you found in part a is administered, what percentage of animals die?
- Find the mean and compare it with the median. Find thestandard deviation and compare it with the interquartile range. Data is: Release time [sec] of a relay1.3 1.2 1.4 1.5 1.3 1.3 1.4 1.1 1.5 1.41.6 1.3 1.5 1.1 1.4 1.2 1.3 1.5 1.4 1.4Americans love ice cream .The annual per capita consumption of ice cream ,in pounds ,in the united states can be approximately by a normal distribution with mean 16.5 lbs and standard deviation 2.5 lbs write three statements about the distribution using the empirical ruleThe incomes of math tutors in a tutoring center of a university are normally distributed with a mean of $1100 and a standard deviation of $150 what percentage of tutors earn less than $900 a month
- Draw a normal curve with µ= 70 and o = 19. Label the mean and the inflection points. ..... Choose the correct graph of the normal curve below. A. В. OC. 51 70 89 70 89 108 32 51 70Assume the samples are random and independent, the populations are nomally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are classified according to battery type. At a = 0.10, is there enough evidence to conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below. E Click the icon to view the battery cost data. (a) Let u. 2 Ha represent the mean prices for the group size 35, 65, and 24/24F respectively. Identify the claim and state Ho and H.. Ho: H - X Cost of batteries by type The claim the V hypothesis. Group size 35 Group size 65 Group size 24/ 24F 91 99 111 119 126 O 91 144 174 180 278 79 84 126 140 140 (b) Find the critical value, Fo. and identify the rejection region. The rejection region is F Fo, where Fo- (Round to two decimal places as needed.) (c) Find the test statistic F. F= (Round to two decimal places as…Given a mean, standard deviation, and a raw score, find the corresponding z-score. Assume the distribution is normal. mean 70, standard deviation 4, x = 80 What is the corresponding z-score? z=
