1. A salsa producer has just received a shipment of tomatoes from their main supplier. If...

1. A salsa producer has just received a shipment of tomatoes from their main supplier. If the salsa
company finds convincing evidence that more than 7% of the tomatoes are damaged and
unusable for the salsa making process, the truck will have to be sent away and a new shipment
will have to be sent out by the supplier. An inspection reveals that 49 tomatoes are unusable
when the supervisor selects a random sample of 500 tomatoes from the truck. Carry out a
significance test at the α = 0.05 significance level. What should the salsa producer conclude
about the shipment?

2. As part of the Southeastern Region of Teach America, researchers conducted two surveys in
2019. The first survey asked a random sample of 1287 Florida college students about their use of
online tutoring services. A second survey posed similar questions to a random sample of 1354
Georgia college students. In these 2 studies, 57% of Florida college students and 68% of Georgia
college students said they used online tutoring services. Construct and interpret a 90%
confidence interval for the difference between the proportion of Florida and Georgia college students who use online tutoring services

Solutions

Expert Solution

milcah answered 10 months ago

Next > < Previous

Related Solutions

A manager has just received a revised price schedule from a supplier as shown below. What...

A manager has just received a revised price schedule from a supplier as shown below. What order quantity should the manager use in order to minimize total inventory costs? Annual demand is 1,200 units; ordering cost is $8; and holding cost is 20%. Quantity Unit Price 1 – 39 $14 40 – 59 $13 60 – 89 $12 90 + $ 11

You are the treasurer for ABC corporation. You just received a bill from your Italian supplier of...

You are the treasurer for ABC corporation. You just received a bill from your Italian supplier of Genoa salami for Eur 500,000. The Euros are due in three months. 1- What would you do to hedge this exposure? ( What hedge would you put on) 2- If you hedged the underlying position properly, what would you expect the net gain or loss to be when you combine the underlying position with the hedge mark-to-market?

You have just received a batch of goods from your supplier. You plan to sample the...

You have just received a batch of goods from your supplier. You plan to sample the batch in order to determine whether you will accept it or not. For this product, your contract with the supplier specifies that 3.0% is an acceptable quality level and the LTPD is 18.0%. The contract further specifies that the buyer’s risk should be 2.5% and the seller’s risk should be 1.0%. Given these parameters for your sampling plan, what is the least number of...

You work at Best Buy’s Warehouse and just received a shipment of the latest iPhone 11s.

You work at Best Buy’s Warehouse and just received a shipment of the latest iPhone 11s. However, due to the new supplier (the old supplier closed due to COVID-19), there are 4 defective phones in the shipment (but you don’t know which specific ones). Suppose there are 24 iPhones in the shipment. (a) (3 points) If three phones are randomly selected, find the probability that the first two phones are NOT defective but the last phone selected IS defective. (b) (4 points)...

Door2DoorCo are a large courier company who have just received a shipment of X new vans....

Door2DoorCo are a large courier company who have just received a shipment of X new vans. They wish to lock in a tyre supply contract to keep these vans well shod over the Y months that they intend to keep the vans. The vans come with low quality tyres that will need to be replaced in 2 months. Two suppliers, ThriftyTread and WiserWheels have expressed interest at supplying tyres at a fixed price for the duration. The offers are summarised...

Suppose you have just received a shipment of 27 modems. Although you don't know this, 3...

Suppose you have just received a shipment of 27 modems. Although you don't know this, 3 of the modems are defective. To determine whether you will accept the shipment, you randomly select 8 modems and test them. If all 8 modems work, you accept the shipment. Otherwise, the shipment is rejected. What is the probability of accepting the shipment?

An electronics store has received a shipment of 30 table radios that have connections for an...

An electronics store has received a shipment of 30 table radios that have connections for an iPod or iPhone. Twelve of these have two slots (so they can accommodate both devices), and the other eighteen have a single slot. Suppose that eight of the 30 radios are randomly selected to be stored under a shelf where the radios are displayed, and the remaining ones are placed in a storeroom. Let X = the number among the radios stored under the...

The owner of a local car dealership has just received a call from a regional distributor...

The owner of a local car dealership has just received a call from a regional distributor stating that a $5000 bonus will be awarded if the owner's dealership sells at least 10 new cars next Saturday. On an average Saturday, this dealership has 75 potential customers look at new cars, but there is no way to determine exactly how many customers will come this particular Saturday. The owner is fairly certain that the number would not be less than 40,...

Russian case study: Russia has long been a preeminent global producer and supplier of gas, but...

Russian case study: Russia has long been a preeminent global producer and supplier of gas, but the recent evolution of global market dynamics has begun to erode this status. Now, it finds itself at a crossroads that could determine its fate in this evolving market. Faced with the US shale gas revolution, competition from global LNG suppliers and new pipeline projects, an uncertain demand outlook in Russia’s once captive European market, and slow penetration of high growth Asian markets, Russia...

A lumber company has just taken delivery on a shipment of 10,000 2 ✕ 4 boards....

A lumber company has just taken delivery on a shipment of 10,000 2 ✕ 4 boards. Suppose that 10% of these boards (1000) are actually too green to be used in first-quality construction. Two boards are selected at random, one after the other. Let A = {the first board is green} and B = {the second board is green}. (a) Compute P(A), P(B), and P(A ∩ B) (a tree diagram might help). (Round your answer for P(A ∩ B) to...

Subjects