Is it that the variance is not statistically relevant because of the rejection of the null hypothesis?

Is it that the variance is not statistically relevant because of the rejection of the null hypothesis?

A local deli makes sandwiches that come with your choice of 8 different breads, 5 different cheeses, 12 different toppings and 6 different meats. How many different sandwiches making one choice from...

A high school is trying to fill four student cabinet positions. There are 8 candidates for the class president position, 5 candidates for the vice president position, 7 candidates for the secretary...

When you get a surprisingly low price on a product do you assume that you got a really good deal or that you bought a low-quality product? Research indicates that you are more likely to associate...

A new email account is requiring that you format your passcode with two numbers followed by six letters and ended with one of the following eight special characters: !@#$%^&*. How many possible...

Two groups of subjects participated in an experiment designed to test the effect of frustration on aggression. The experimental group of 40 subjects received a frustrating puzzle to solve, while the...

For a sample of 100 corrections officers at a local prison, a researcher believes there is a relationship between “years on the job” and “willingness to help raise money for local charities.”...

In a data analytics class and this question does not make a lot of sense to me. I think it means why do stats. use .01 and .05 levels of significance but why are the numbers so conservative?

Does it have to do with the fact that a t-test cannot be used for nominal levels of measurement? Not sure

The probability is____ Round to 3 decimals

If a gambler places a bet on the number 7 in roulette he or she has a 1/38 probability of winning. a.Find the mean and standard deviation for the # of wins of gambles who bet on 7, one hundred...

A waitress believes the distribution of her tips has a model that is slightly skewed to the left, with a mean of $10.10 and a standard deviation of $6.20. She usually waits on about 50 parties over...

Draw a number line from 8 to 14. Show the frequency of each number. Title the dot plot. Show the frequency of each number. Title the dot plot. Draw a number line from 8 to 14. Title the dot...

The grade appeal process at a university requires that a jury be structured by selecting seven individuals randomly from a pool of eleven students and eight faculty. (a)...

I have 300 people doing a test and i have sorted them in 4 different groups according to their sight/vision (good and bad) and training (good and bad) . I want to find out which group would be the...

Obtain the daily trading data of the Straits Times Index (STI) from 2016 to 2018 (Today) for the data and Draw the distribution (histogram) of daily stock returns. Compute the first four mo-...

You are watching a video of a person flipping a coin and guessing whether it is heads or tails. Using the standard that an event is considered "usual" if the probability is under 0.05, state...

The following data represent the flight time (in minutes) of a random sample of seven flights from one city to another city. 286286, 269269, 259259, 265265, 256256, 263263, 257257 Compute...

Consider the five number summary of hourly wages ($) for a sample of sales managers. What is the IQR for these data? Min Q1 Median Q3 Max 20.94 37.64 44.77 49.34 67...

The ages of the winners of a cycling tournament are approximately normal. The mean age is 27.127.1 years, with a standard deviation of 3.83.8 years. The winner in one recent year was 3030 years old...