What is your problem exactly? That image is so useless (a photo of a screen showing the monitor printing "Hello World" and a zero number) I don't bother posting it inline. You will have to explain why that's not what you expect (or is it?).
When posting code, please place it inline and between code tags, so it looks like this (that'd OP's code):
#include "max6675.h"
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
MAX6675 ktc(13, 7, 12); // Create a Module (CLK, CS, SO)
RF24 radio(9, 10); // Create a Radio (CE, CSN)
const byte address[6] = "00001";
void setup(){
Serial.begin(9600);
delay(500);
radio.begin();
radio.openWritingPipe(address);
radio.setPALevel(RF24_PA_MIN);
radio.stopListening();
}
void loop() {
double jobTemp = ktc.readCelsius();
Serial.println(jobTemp);
char text[] = "Hello World"; //double T1 = ktc.readCelsius();
Serial.println(text);
radio.write(&text, sizeof(text)); //radio.write(&T1, sizeof(T1));
delay(200);
}