You randomly sample 4 attendants of a power posing seminar. You note that 3 of the 4 exhibit higher levels of confidence than the median of the general population. The probability of obtaining this...

You randomly sample 4 attendants of a power posing seminar. You note that 3 of the 4 exhibit higher levels of confidence than the median of the general population. The probability of obtaining this...

in a test administered to 400 candidates the mean was found to be 60 and standard deviation 5. Assuming scores were normally distributed.what proportions of students fall between the scores 55 and...

I have been looking at these questions for a few hours now and I am very confused. any help would be very much appreciated :) Even if you only help with one question that would be great too...

The following box‐and‐whisker plot is for 32 test scores. Part 1 out of 4 a. What is the lower quartile?

An ice cream shop owner hires a clerk and informs him that the mean weight of scoops of ice cream should be 50 grams. The clerk weighs out seven ice cream scoops with the following weights in grams:...

when do i use independent sample t test or one sample t test?

Peter and Sally each shoot 12 arrows at a target that is circular with a diameter of 72 inches. The mean of the distances that Peter's arrows strike from the center of the target is 20 inches, and...

Students in a statistics class at Penn State were asked, “About how many minutes do you typically exercise in a week?” Responses from the women in the class were as follows: 60,...

Calculate the mean, median, and mode for each set of data. If there is no mode, write "none." Round your answers to two decimal places. a. 9, 37, 16, 9, 19, 22, 18, 23 Mean:...

The grades of eight students on a 10‐ point test were 2, 2, 4, 6, 6, 7, 7, and 10. Part 1 out of 3 a. Compute the mean of these test scores to the nearest 0...

Use the following list of resting pulse rates of 55 people. The mean of these rates is 73.5, and the standard deviation is approximately 13.2. 50, 51, 51, 53, 53, 53, 55, 56, 56, 57,...

Calculate the mean, median, and mode for each set of data. If there is no mode, write "none." Round your answers to two decimal places. a. 9, 37, 16, 9, 19, 22, 18, 23 Mean:...

If you throw exactly one head in two tosses of a coin you win $20. If not, you pay me $15.

Find the savings plan balance after 8 months with an APR of 10.5% and monthly payments of $200.

An ice cream shop owner hires a clerk and informs him that the mean weight of scoops of ice cream should be 50 grams. The clerk weighs out seven ice cream scoops with the following weights in grams:...

Use the following list of resting pulse rates of 55 people. The mean of these rates is 68.9, and the standard deviation is approximately 13.5. 50, 50, 50, 51, 51, 51, 51, 53, 53, 54,...

An ice cream shop owner hires a clerk and informs him that the mean weight of scoops of ice cream should be 50 grams. The clerk weighs out seven ice cream scoops with the following weights in grams:...

Use the table data for a particular region of states to answer the following questions. Percentage of Population Not High School Graduates (to nearest percent) Northeast,...

brand of crockpots has a mean high temperature of 260º F and a standard deviation of 3º F. If acrockpot′ s highest temperature is below 251º F or above 269º F, it is considered defective....

The results of an examination are found to be normally distributed with a standard deviation of 15.0. If a student is selected at random, the probability is 0.0485 that his mark will exceed 85. The...