A men's shoe designer is willing to accommodate 95% of the male population. If the mean foot length is 25.25 cm and the standard deviation is 3.875 cm, answer the following:
1. What is the smallest foot length the designer is willing to accommodate?
2. What is the largest foot length the designer is willing to accommodate?
(2).
A men's shoe designer is willing to accommodate 95% of the male population. If the mean...
The mean exam score for 44 male high school students is 20.1 and the population standard deviation is 4.7. The mean exam score for 58 female high school students is 19.6 and the population standard deviation is 4.1. At a = 0.01, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through (e). Click here to view page 1 of the standard normal distribution table. Click here to view page...
a group of adult males has foot lengths with a mean of 31.99 cm and a standard deviation of 2.39 cm. an adult male foot length of what would b significantly low?
Suppose a randomly selected sample of n = 68 men has a mean foot length of x = 26.7 cm, and the standard deviation of the sample is 3 cm. Calculate an approximate 95% confidence interval for the mean foot length of men. (Round the answers to one decimal place.) ____ to_____ cm important note : When working on the confidence interval for the population mean, have the standard error go to 5 decimal places. Then, input the answers to...
QUESTION 1 In constructing a 95% confidence level estimate of the mean when the population standard deviation () is known what will be your score used in the formula? QUESTION 2 In constructing a 99% confidence level estimate of the mean when the population standard deviation (a) is known what will be your score used in the formula? HINT. Be sure to review page 236 "Finding Z scores from Known Areas - Special Cases and Tabel A-2. QUESTION 3 In...
For the male stature: - sample population mean = 66.5" - standard deviation = 1.3" What male stature for this population represents the : - 10th percentile? - 50th percentile? - 95th percentile?
A 95% confidence interval for a population mean was reported to be 150 to 160 . If standard deviation = 17, what sample size was used in this study? (Round your answer to next whole number.)
When planning to construct a 95% confidence interval for a population mean such that it is within one eighth (population) standard deviation from a sample mean, what is the minimum sample size required?
Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample size of n = 5. 1, 2, 3, 4, and 30 In the given data, replace the value 30 with 5 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general. Find a 95% confidence interval for the population mean, using the formula or...
A random sample of 19 men's resting pulse rates showed a mean of 73.6 beats per minute and standard deviation of 18.2. Assume that pulse rates are Normally distributed. Use the table to complete parts (a) through (c) below. LOADING... Click the icon to view the t-table. a. Find a 95% confidence interval for the population mean pulse rate of men, and report it in a sentence. Choose the correct answer below and, if necessary, fill in the answer boxes...
A 95% confidence interval for a population mean goes from 10 to 13. The interval was based on a sample size of 45. The interval was calculated using a known population standard deviation but the value has been lost. What is the population standard deviation?