xpress the null  hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol( mean, standard deviation,  andp) for the indicated parameter. An entomologist writes an article in a scientific journal which claims that fewer than 16 in ten thousand male fireflies are unable to produce light due to a genetic mutation. Use the parameter  p, the true proportion of fireflies unable to produce light.

The main purpose of inferential statistics is to know whether: random sampling error occurs. the sample represents the population. the sample is randomly selected. the population size is larger than sample size.

The mean for life expectancy is 47.6 for White people who were born in 1900 and 33.0 for non-white people. Suppose you randomly sample the death records for people born in 1900 in a certain country. Of the 124 white people, the mean life span is 45.3 years and the standard deviation is 12.7 years. 82 of the non-white people have a mean life span of 34.1 and a standard deviation of 15.6 years. A hypothesis test is needed to see if the mean is the same for both countries for White and Non-White people. Is this a right, left or two-tailed test.

Assume that the average weight of an NFL player is 245.7 lbs with a standard deviation of 34.5 lbs. The distribution of NFL weights is not normal. Suppose you took a random sample of 32 players. What is the probability that the sample average will be less than 260 lbs?

Give an statistical principle example for a surgeon

bout 4% of the population has a particular genetic mutation. 300 people are randomly selected.Find the standard deviation for the number of people with the genetic mutation in such groups of 300. (Remember that standard deviation should be rounded to one more decimal place than the raw data, in this case 1 decimal place is necessary.)

A population has an average of 125 and a standard deviation of 15.  Calculate the probability that in a sample of size 75, the sample mean is greater than 130.

A population has a mean of 90 and a standard deviation of 10. A sample of 100 observations will be taken. The probability that the mean from that sample will be less than 92 is

Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an average (mean) of 32 grams of fat per pound, with a standard deviation of 8 grams of fat per pound. A random sample of 40 farm-raised trout is selected. The mean fat content for the sample is 30.2 grams per pound. Find the probability of observing a sample mean of 30.2 grams of fat per pound or less in a random sample of 40 farm-raised trout. Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places. Check esc 23 2$ 5 2 e r t y tab

Use software or a calculator to find the​ range, variance, and standard deviation of the following body​temperatures, in degrees​ Fahrenheit, taken at​ 12:00 A.M. I don't remember how to find variance on a TI-83 Plus calculator and translate standard deviation. HELP!