Conclusion that population standard deviation is right

Assignment Help Basic Statistics

Reference no: EM13140341

A social scientist claims that the average adult watches less than 30 hours of television per week. He collects data on 50 individuals' television viewing habits and finds that the mean number of hours that the 50 people spent
watching television was 28.8 hours. If the population standard deviation is known to be 7.5 hours, can we conclude at the 5% significance level that he is right?

Reference no: EM13140341

Questions Cloud

How many moles of oxygen atoms are combined : How many moles of oxygen atoms are combined with 4.20 moles of chlorine atoms in Cl2O7?

Evaluate the accuracy of the forecast : Evaluate the "Accuracy" of the forecast for the "hold out period" using RMSE and MAPE error measures used from forecast period residuals and comment them.

What mass of co2 is produced : Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced from the reaction of 2.94g Na2CO3 with excess HCL

What will be the genotypic frequencies from generation : What will be the genotypic frequencies from generation to generation, provided that alleles p and q remain in genetic equilibrium? AA= Aa= aa= p+q=1 p2 (squared) +2pq + q2(squared) = 1 p= frequency of A (Dominant allele0 q= frequency of a p2= freq..

Conclusion that population standard deviation is right : If the population standard deviation is known to be 7.5 hours, can we conclude at the 5% significance level that he is right?

What are variable costing inventory cost per unit : What are the variable costing inventory cost per unit be for 2010,2011, and 2012, respectively?

Preparation of the fund financial statements : At the time of the notification what is the appropriate entry in the capital projects fund (assuming that the City has met all eligibility requirements and maintains its books and records in a manner to facilitate the preparation of the fund finan..

How many units would company have to sell : A total of 80,000 units were produced and sold last month. How many units would company have to sell to achieve a desired profit of $1,200,000?

Define design with multiplexer : Define Design with Multiplexer, Design a circuit using one 16 TO 1 multiplexer with W, X,Y,Z on the control inputs

User Account

All Pages