For each of the following situations decide what type of chi square test is appropriate. Explain. a) A random sample of 200 students was asked to sample a new type of pizza that the school was considering using as a replacement for the current pizza. Each student stated if they were a freshman, sophomore, junior, or senior and also if they liked the new pizza more than the current pizza (or not). The school would like to know if there is a relationship between grade level and pizza opinion.
b) Another school is also considering changing their pizza vendor. This school selects separate random samples of 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors. Each student tries the new pizza and states whether they like it more than the current pizza (or not). The school would like to know if the distribution of opinion differs across the grade levels.
c) A pizza shop claims that 30% of orders are placed on Fridays, 20% are placed on Saturdays, and 10% of orders are placed on the other days of the week. A global pandemic may have changed this distribution. The manager investigates so he knows how to staff the pizza shop appropriately. He selects a random sample of 300 orders and classifies each one according to the day of the week the order was placed. He wants to know if the distribution of orders is the same as it was before the global pandemic.

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

you'll just earn points here

step-by-step explanation:

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!