The U. S. Energy Information Administration claimed that U. S. residential customers used an average of 10,76110,761 kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use more electricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 160160 of their customers and calculates that these customers used an average of 11,231kWh11,231⁢kWh of electricity last year. Assuming that the population standard deviation is 2917kWh2917⁢kWh, is there sufficient evidence to support the power company's claim at the 0.010.01 level of significance? Step 1:
State the null and alternative hypotheses for the test. Fill in the blank below.
H0: μ=10,761
Ha: μ 10,761
<, >, not equal
Step 2: What is the test statistic?
Step 3: Do we fail to reject OR reject the null hypothesis because of sufficient or insufficient evidence?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

(c) compare the results of parts (a) and (b). in general, how do you think the mode, median, and mean are affected when each data value in a set is multiplied by the same constant? multiplying each data value by the same constant c results in the mode, median, and mean increasing by a factor of c. multiplying each data value by the same constant c results in the mode, median, and mean remaining the same. multiplying each data value by the same constant c results in the mode, median, and mean decreasing by a factor of c. there is no distinct pattern when each data value is multiplied by the same constant. (d) suppose you have information about average heights of a random sample of airline passengers. the mode is 65 inches, the median is 72 inches, and the mean is 65 inches. to convert the data into centimeters, multiply each data value by 2.54. what are the values of the mode, median, and mean in centimeters? (enter your answers to two decimal places.) mode cm median cm mean cm in this problem, we explore the effect on the mean, median, and mode of multiplying each data value by the same number. consider the following data set 7, 7, 8, 11, 15. (a) compute the mode, median, and mean. (enter your answers to one (1) decimal places.) mean value = median = mode = (b) multiply 3 to each of the data values. compute the mode, median, and mean. (enter your answers to one (1) decimal places.) mean value = median = mode = --

As a salesperson you get $50/day and $3.60/each sales you make.if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.